Tag Archives: Pacific Science Center

Lots of great choices for astronomy events this week

There are tons of great astronomy events on the calendar this week, topped by the opening of the Museum of Flight’s Apollo exhibit and a visit from the Night Sky Guy.

Apollo

ApolloA couple of years in the making, the new Apollo exhibit opens Saturday, May 20 at the Museum of Flight, though museum members can get an early sneak-peek Wednesday evening. The exhibit includes the F-1 engine parts fished out of the Atlantic Ocean by Bezos Expeditions, an intact F-1, and many more great space exploration artifacts. Check out our recent article and podcast previewing the exhibit.

The Museum will also hold its annual Space Fest over the weekend with a variety of presentations, exhibits, and discussions focused on Apollo and the Moon.

The Night Sky Guy and Mars

Andrew Fazekas, aka The Night Sky Guy, is in Seattle for three talks at Benaroya Hall. Titled “Mankind to Mars,” the event will be an exploration of what it will take to get humans to the Red Planet. It’s produced in conjunction with the Mars miniseries created by the National Geographic channel. One show was Sunday afternoon, and Fazekas also appears on Monday, May 15 and Tuesday, May 16, both at 7:30 p.m.

Fazekas is the author of Star Trek: The Official Guide to Our Universe: The True Science Behind the Starship Voyages (National Geographic, 2016).

AstronoMay at PacSci

Pacific Science CenterAstronoMay is under way at the Pacific Science Center, and a couple of interesting events are on the calendar for this week. Astronaut Nicholas Patrick will host a viewing and discussion of the film A Beautiful Planet 3-D at 7 p.m. Tuesday, May 16. The film is a portrait of Earth from space captured by the astronauts aboard the International Space Station. Patrick will introduce the show and lead a Q&A session after. He’s now with Blue Origin; see our article about Patrick’s recent talk at Astronomy on Tap Seattle. Admission is $10, or $5 for science center members.

Then learn the ABCs of total solar eclipses, and get ready for the one that will be visible in parts of the United States in August, with Dennis Schatz, nationally recognized astronomy educator and Pacific Science Center senior advisor. Total Solar Eclipse 101 happens at 7 p.m. Wednesday, May 17. Cost is $5, free for members.

JWST

RiekeNASA’s next great space observatory, the James Webb Space Telescope (JWST), is scheduled for launch in October 2018. George Rieke, a professor of astronomy at the University of Arizona and science team lead for the Mid-Infrared Instrument (MIRI) that will fly onboard the scope, will speak at the University of Washington astronomy colloquium at 4 p.m. Thursday, May 18. The talk will focus on the capabilities of JWST, emphasizing the advances over present (and even some future) facilities, with examples of the science it will enable.

Club events

Rose City Astronomers will hold their monthly meeting at 7:30 p.m. Monday, May 15 in the OMSI auditorium in Portland. It will be their annual swap meet and astronomy information fair. The club, along with OMSI and the Vancouver Sidewalk Astronomers, will host public star parties at 8 p.m. Saturday, May 20 at both Rooster Rock State Park and L.L. “Stub” Stewart State Park.

The Island County Astronomical Society will hold its monthly meeting at 6:30 p.m. Monday, May 15 at the Oak Harbor Library.

The Seattle Astronomical Society monthly meeting will be at 7:30 p.m. Wednesday, May 17 in room A102 of the Physics/Astronomy building on the University of Washington campus in Seattle. Guest speaker Woody Sullivan, professor emeritus of astronomy, will talk about the contributions of William and Caroline Herschel to our understanding of comets. Sullivan is working on a biography of William Herschel.

The Tacoma Astronomical Society plans one of its free public nights for 9 p.m. Saturday, May 20. The topic for the indoor presentation will be black holes. If the weather cooperates they’ll break out the telescopes for some observing.

TJO

Theodor Jacobsen ObservatoryThe bi-monthly open house at the UW’s Theodor Jacobsen Observatory is set for 9 p.m. Wednesday, May 17. The topic for the evening’s astronomy talk has not been published. It’s a good idea to make reservations early, as these typically are filled up. Volunteers from the Seattle Astronomical Society will conduct tours of the observatory dome and, weather permitting, offer a look through its vintage telescope.

Planetarium shows

The Bellevue College Planetarium will run a public show about black holes at 6 p.m. and again at 7 p.m. on Saturday, May 20. The show will include animations of the formation of the early universe, star birth and death, the collision of giant galaxies, and a simulated flight to a super-massive black hole lurking at the center of our own Milky Way Galaxy. It’s free, but reservations are suggested. See the website for registration info and other details.

The Willard Smith Planetarium at the Pacific Science Center offers a variety of shows every day. Their full schedule is posted on our calendar page, where you can also scout out more future astronomy events.

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The search for ET at Pacific Science Center

They’re thinking a lot about extraterrestrial life these days over at the Pacific Science Center, where two new exhibits explore how scientists are working to identify far-away planets that may harbor life, and how we’re going to feed ourselves while we’re on our way to pay a visit.

Mission: Find Life!The exhibit Mission: Find Life! opened up last month in the science center’s Portal to Current Research space. Erika Harnett, a University of Washington professor of Earth and Space Sciences who serves as the education and outreach lead for the UW’s Virtual Planetary Laboratory (VPL), was one of the key players in developing the content for the exhibit.

“We really wanted to connect the research being done by the Virtual Planetary Laboratory and some of the more cutting-edge science,” Harnett said.

It’s all in the biosignature

They decided to focus on examining the biosignatures of exoplanets. Harnett noted that we actually have the technology to take images of planets orbiting other stars, even though the images only amount to a pixel or two.

“From that single pixel you can actually glean quite a bit of information,” Harnett noted. “Scientists are trying to figure out if, from that, you can actually start to see if there are signatures of life on a planet, and really the initial work that they’re doing now is defining what are the signatures of life on Earth.”

The color of the light might tell you if you’re looking at ocean or continents. You might even identify the chemical components of a planet’s atmosphere or the types of molecules that are there.

Promotional material for the exhibit notes that, for finding life, “the color purple may be the key.” Harnett explained that that’s because red dwarf stars are plentiful in the universe, and they last a long time—long enough to give life plenty of time to develop. Whatever life appears would be faced with much redder light than we have here on Earth.

“Life will want to make use of it as much as possible, so it’s going to be either purple or black vegetation, instead of green, to be able to absorb as much electromagnetic radiation in the visible as possible,” Harnett said. She noted that, for the exhibit, they wanted to convey the speed of discovery—scientists verify new exoplanet discoveries practically every day. She also wanted to set expectations about what sorts of life might be found. Spoiler alert: it won’t likely be little green men like the ones on the socks Harnett wore when we spoke.

“It’s more likely that it’s going to be something like microbes or bacteria, because that’s actually what most of the life on Earth is. It’s not the most visible, but it’s the most plentiful,” she said.

Watch an exoplanet transit

One of the cool, hands-on features of the exhibit gives visitors a look at how scientists using the Kepler Space Telescope actually find exoplanets. A lighted globe represents a star, and you can spin a couple of planets around it.

“Then they have a sensor off to the side,” Harnett said—it’s actually inside a model of Kepler. “On a screen you can see the light from the star, and then as the planet transits you can see the dip” in the amount of light that arrives at the sensor.

“You get to actually play with that and explore what the change in signal associated with a planetary transit looks like,” she added.

Another interactive feature of the exhibit is a large touch screen that uses the NASA Eyes on Exoplanets program to let visitors explore planets.

Communicating science

The Mission: Find Life! exhibit is part of the VPL’s work funded by the NASA Astrobiology Institute, which requires that a portion of funds be reserved for education and public outreach. VPL has created several science-on-a-sphere shows and trained numerous graduate students to be science communication fellows.

“The Portal to Current Research project is the culminating part of our work,” Harnett said. She has been involved with the Pacific Science Center’s communication fellows program for about a decade and said she feels effective communication about science is important.

“If scientists do a better job of communicating their science there would not be quite as much mistrust of science,” she said. “Everybody needs to get out more into the community and be doing more communication and writing for the general public, as opposed to just writing the peer-reviewed articles that will go into a journal and ten people will see.”

Harnett said they’re working to line up astrobiologists to offer talks during the exhibit’s run, especially during Astrono-May at the science center. Mission: Find Life! runs through September 4, 2017 at the Pacific Science Center.

What’s for lunch?

Feeding Future AstronautsAnother new exhibit called Feeding Future Astronauts is just across the gallery from the Portal to Current Research space. Growing food in space will take a lot less energy than carrying a bunch of it along, and the exhibit highlights some of the things NASA is trying. In the test garden of the exhibit they’re growing “outredgeous” lettuce, “Tokyo bekana” cabbage, and “Red Robin” cherry tomatoes. The latter will be a challenge because tomatoes require pollination, and as far as we know there are no bees in space. ISS astronauts are experimenting with hand pollination and how it will work in microgravity. The Red Robin might be a good variety of tomato to try in your Seattle garden; the ones in the exhibit were doing great for early April with only artificial light.


Podcast of our interview with Erika Harnett:

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Grinspoon: Earth in human hands

David Grinspoon himself wonders how an astrobiologist wound up writing a book about the human impact on Earth. Grinspoon, author of Earth in Human Hands: Shaping Our Planet’s Future (Grand Central Publishing, 2016), answered the question during a Science in the City lecture recently at Pacific Science Center.

David Grinspoon

Astrobiologist and author David Grinspoon talked about his new book, Earth in Human Hands, January 10 at the Pacific Science Center. Photo: Greg Scheiderer.

“I am struck by the unique strangeness of the present moment,” Grinspoon said, noting that we are at the controls, if not actually in control, as we enter a new epoch in human history. Some find the proposed name of Anthropocene—the age of humanity—a touch self-centered or self-aggrandizing, but Grinspoon feels it is a fitting moniker.

“It represents a recognizable turning point in geological history brought about by one species: anthropos,” he said. “Our growing acknowledgement of this inflection point can be a turning point in our ability to respond to the changes we’ve set in motion.”

In fact, Grinspoon finds it promising that there’s some recognition that we the people are a major factor in what is happening.

“We need to learn all that we can about how planets work so we can make the transition from inadvertently messing with Earth to thoughtfully, artfully, and constructively engaging with its great systems,” he said.

A long history of planetary change

Grinspoon noted that it’s always fruitful to take a close look at the long-term history of Earth.

“We are not the first species to come along and radically change the planet and cause problems for the rest of the biosphere,” he said. In fact, the first one was not nearly so clever as we are. About 2.5 billion years ago the humble cyanobacteria caused a terrible calamity.

“They transformed the planet, the most radical chemical transformation that our planet has ever experienced,” Grinspoon explained. “They flooded the atmosphere with a poison gas that spelled certain doom for most of the other species that were living on the planet at that time.”

What they learned to do was photosynthesis, and the poison gas they spewed was oxygen. The oxygen also destroyed much of the warming methane in the atmosphere of the time, which led to a global glaciation that turned Earth into a giant snowball, a condition that lasted until volcanoes pumped out enough carbon dioxide to warm the planet up again.

“Cyanobacteria presumably never discussed that fact that they were starting to ruin the world,” Grinspoon quipped.

Four types of change

Grinspoon identifies four broad types of planetary change:

  • Random
  • Biological
  • Inadvertent
  • Intentional

The classic example of the random is an asteroid strike, something that just happens that there’s little control over. The cyanobacteria fall under the biological change. We’re in the midst of great inadvertent change right now, with automobiles, population growth and other factors driving a spike in carbon dioxide levels that began in the 1950s.

We’ve barely dipped our toes into the intentional. Grinspoon explained that our first stab at intentional change came with regard to fixing the hole in Earth’s ozone layer. The solution came from scientists studying Venus and trying to explain the planet’s lack of oxygen. They realized that chlorine destroys oxygen and ozone. Other scientists connected the dots and concluded that chlorofluorocarbons in refrigerants, propellants, and other products on Earth were eating away at our planet’s ozone layer.

Fixing the ozone

Interestingly, Grinspoon noted that this created an argument that may sound familiar. Some called the notion a hoax, there were attempts to discredit it, opposing “science” was created, and there was lengthy debate.

“The truth won out,” Grinspoon said. A global agreement was reached: the Montreal Protocol. Alternate chemicals were developed that didn’t deplete the ozone. Grinspoon said it’s working.

“It’s still going to be another fifty years or so because it takes time for the ozone layer to come back,” he said. “The natural chemical reactions that re-create ozone take fifty to one hundred years.”

“Assuming we stay on track, this is actually a success story, and it’s an existence proof that this kind of global change is possible,” Grinspoon added. “Not that it’s easy, and there are some ways in which fixing global warming will be inherently harder than this, but it shows that we are capable of a different approach.”

Thinking long term

While global warming is an important challenge, Grinspoon said it is a relatively short-term one, and that we need to think even further down the road. He said such random events as asteroid strikes don’t have to happen.

“We have a space program; the dinosaurs didn’t, and look what happened to them!” he quipped. We know how to identify possible threats and have a pretty good idea about what to do when they occur.

Further, Grinspoon said that we have an illusion that climate is always more-or-less fine, only because we’ve been lucky enough to live in a time of relative stability. We need to think about the next ice age, which he said will eventually occur.

“If we get over the near-term climate harm that we’re doing, we will have the knowledge that will allow us, when the need arises—we’re talking 10,000 or maybe even as much as 50,000 years in the future—we’ll have the ability to interrupt that cycle of ice ages and preserve the relatively benign climate, not just for ourselves but for other species as well,” Grinspoon said.

Who is out there?

All of this allowed Grinspoon to put on his astrobiologist hat and talk a little about the search for extra-terrestrial intelligence (SETI).

“When you do the math of SETI what you realize is that the question of is there anybody out there to talk to comes down to the question of longevity,” he said. “You can show this mathematically, that if civilizations last for a long time—that is, if this problem is soluble of how to create a stable technological civilization and use technology in the service of survival rather than self destruction—if that’s possible to do and if it happens on other planets, then there ought to be other civilizations out there that we could discover and maybe even communicate with.”

Thus the Anthropocene epoch represents something of a turning point. There are those who regard it as doom and gloom, as something we can’t beat, but Grinspoon doesn’t see it that way.

“The true Anthropocene is something that should be welcomed,” he said. “Though it is yet only in its infancy, it can be glimpsed. Don’t fear it; learn to shape it.”

“It is the awareness of ourselves as geological change agents that, once propagated and integrated, will provide us with the capacity to avoid doom and take our future into our own hands,” Grinspoon concluded.


Books by David Grinspoon:

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Solstice sunset watch and LIGO info on our calendar this week

The calendar year is winding down, and astronomy clubs are hustling to get a last few events in before we plunge into 2017.

Rose City AstronomersThe Rose City Astronomers eschew their usual formal meeting for their annual holiday potluck at 6:30 p.m. Monday, December 19 at the OMSI auditorium in Portland. Leftovers from the event have traditionally been donated to a homeless shelter, and this year the astronomers are also collecting warm clothing for donations, figuring that astronomy folk may have a supply of such to bring comfort to those late-night sessions at the eyepiece.

The Eastside Astronomical Society will hold its monthly meeting at 7 p.m. Tuesday, December 20 at the Lake Hills Library in Bellevue. NASA Solar System Ambassador John McLaren will give a talk about the history of scientific exploration of the Sun, and look ahead to future efforts to learn even more about our nearest star.

Seattle Astronomical SocietyThe Seattle Astronomical Society will hold its monthly meeting at 7:30 p.m. Wednesday, December 21 in room A102 of the Physics/Astronomy building on the University of Washington campus in Seattle. Joey Key, a professor at the University of Washington-Bothell, will talk about the next LIGO run searching for gravitational waves, which will also involve astronomical collaboration is search of an elusive “multimessenger source,” a signal that could be detected both in gravitational waves and electromagnetic radiation. Interesting stuff!

Vikings

VMMEPPThe Viking Mars Missions Education and Preservation Project plans an informal information session for 4 p.m. Tuesday, December 20 at the Hillsdale Library in Portland. This family-friendly event will feature artifacts from the Viking mission, activities for kids, and lots of information about Viking history. Check out our recent article and podcast about the project. The year end is a good time to lend a little financial support to this great history project, too!

Solstice sunset watch

Join Alice Enevoldsen of Alice’s Astro Info and watch the first sunset of winter at 3:45 p.m. Wednesday, December 20 at Solstice Park in West Seattle. The solstice is at 2:44 a.m. PST on Wednesday. Sunset that evening is officially listed as 4:20 p.m., but Enevoldsen says they’ve noted that it’s typically about ten minutes early because of the horizon at that spot. She gives a fun and informative presentation about the mechanics of the seasons, and is persistent about it—this will be her thirty-first seasonal sunset watch. That’s a lot of solstices and equinoxes! Come by even if it’s cloudy, because the Sun sometimes sneaks through anyway, but driving rain makes it a no-go.

Futures file

You can scout out future astronomy events on our calendar. The page also features a full schedule of planetarium and stage science shows at Pacific Science Center.

Up in the sky

The Ursid meteor shower peaks this week. This Week’s Sky at a Glance from Sky & Telescope magazine and The Sky This Week from Astronomy offer more observing highlights for the week.

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Club events and planetarium shows on tap for this week

The first weekend in December is heavy with club events, star parties, and planetarium shows. Here’s what’s on the calendar for the coming week:

Club gatherings

Spokane Astronomical SocietyIn December many astronomy clubs opt out of a formal meeting and instead hold a banquet or other more social gathering. The Spokane Astronomical Society plans its annual potluck dinner for 6 p.m. Friday, December 2 at the Riverview Retirement Community. A guest speaker will follow the dinner at 7:30. Dr. John Buchanan, a professor of geology at Eastern Washington University, will talk about catastrophic outburst flooding that have occurred on Earth and Mars through geologic time. He will examine how the “Ice Age Floods” in eastern Washington compare with various large floods both on Earth and Mars.

Seattle Astronomical SocietyThe Seattle Astronomical Society plans its free monthly public star parties for 6 p.m. Saturday, December 3 at two locations: Green Lake in Seattle and Paramount Park in Shoreline. Poor weather will mean cancellation of the events, so watch the club’s website and social media for updates.

Tacoma Astronomical SocietyThe Tacoma Astronomical Society will hold one of its free public nights at 7:30 p.m. Saturday, December 3 at the Fort Steilacoom campus of Pierce College. The all-weather program will be about selecting gift telescopes, binoculars, and other astronomy gear. (We covered that topic, too last week!) If the weather is good they’ll also put their gear into action for some celestial observing.

Planetarium shows

Planetaria have no trouble with cloudy weather! There are several shows on the docket for the week.

The University of Washington planetarium will host three free shows on Friday, December 2 at 5:30, 6:30, and 7:30 p.m. Reservations for all three times were snapped up quickly, but you can watch this site to see if tickets become available.

Pacific Planetarium in Bremerton will host its First Friday Sky Walk shows December 2, with a presentation every half-hour between 5 p.m. and 7:30 p.m. The shows look at what’s up in the sky for the coming month.

There are a variety of shows suitable for all ages every day at the Willard Smith Planetarium at the Pacific Science Center. You’ll find their complete schedule on our calendar page.

Futures file

You can scout out future astronomy events on our calendar. New additions to the calendar this week include:

Up in the sky

Venus and the Moon make a nice pairing on the evening of December 3. This Week’s Sky at a Glance from Sky & Telescope magazine and The Sky This Week from Astronomy offer more observing highlights for the week.

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Proxima Centauri b and the question of habitability

The discovery of evidence of a planet in orbit around our nearest stellar neighbor, Proxima Centauri, has people all agog and with good reason. It’s something of a misnomer, however, to call the exoplanet Proxima Centauri b “Earth-like.” Rory Barnes, a professor in the Department of Astronomy and the Astrobiology Program at the University of Washington, points out that the planet’s mass is probably somewhere between 1.3 and five times that of Earth.

Barnes

UW prof. Rory Barnes speaking at an Astronomy on Tap Seattle event earlier this year. Photo: Greg Scheiderer.

“There’s a lot of excitement about this planet because it is so close in mass to the Earth, but we don’t actually know if it’s even rocky like the Earth,” said Barnes during a recent talk at the Pacific Science Center. Barnes, who uses computer modeling to study the habitability of exoplanets, noted that even though Proxima Centauri is the next closest star, it’s still pretty far away at 4.24 light years. If the Sun were the size of a baseball resting on home plate at Safeco Field, Barnes said Proxima Centauri b would be a grain of sand in New York City. Still, he noted there’s understandable excitement about the discovery.

“The reason why I think that this is the biggest exoplanet discovery since the discovery of exoplanets is because it is still very close, at least relatively speaking,” Barnes said. “We really have a chance, with this planet, to potentially observe its atmosphere and its surface and maybe start to try and sniff out the presence of life on that planet. Or not. We don’t know yet. But being so close, it gives us a shot.”

Not really “like” Earth

While Proxima Centauri b is about the mass of Earth, plenty else is different. It’s twenty times closer to its home star than Earth is to the Sun, and goes around that star in just 11.2 days. We know little else about it. The star has just 12 percent of the mass and 14 percent the radius of the Sun, and its brightness is just one one-thousandth that of the Sun.

“This is a small, dim star,” Barnes said.

Is there life there?

Life requires energy, some bioessential elements, and liquid water. The energy and elements are abundant in the universe, so Barnes says the key to finding life elsewhere is liquid water.

“When we think about exoplanets, we’re really going to focus, at least for now, on surface water,” Barnes said. “Not only is it going to be easier to see, but it’s going to be more similar to the Earth and that gives us a better shot at maybe being able to interpret the observations that we’re going to get.”

The desire to find liquid surface water on a planet led us to the concept of the “habitable zone” around a star, an area where the temperature would be right for liquid water to exist. Barnes said Proxima Centauri b is smack in the middle of the habitable zone.

“This is a dream planet for those of us who study this field,” he said, but added a caveat: “Being in the habitable zone does not mean you’re habitable. It is just the first step we need to get to.”

“The habitable zone is jargon, and it’s really misleading,” Barnes added. “I apologize for my field for inflicting it on you!”

Barnes said there are several threats to habitability for planets orbiting M dwarf stars like Proxima Centauri. With the habitable zone so close to the star, there is potential that stellar flares could blow away the atmosphere of a planet within it. Planets that close are probably tidally locked, too, but this isn’t a deal-breaker; their atmospheres might distribute heat and energy effectively. Tidal heating could cause problematic volcanism.

Habitable zone chart

Barnes showed this chart demonstrating that while Proxima Centauri b is now within the habitable zone, the zone was once much further from the star.

The biggest threat to the habitability of Proxima Centauri b, according to Barnes, is that its star was once much bigger and brighter before it contracted into the dim, red phase it is in today. In the early years that would have meant that its habitable zone was out at a distance between .25 and .5 astronomical units, while Proxima Centauri b orbits at a mere .05 AU. Being so far inside the habitable zone after formation means that the planet could have lost all of its water and become a completely uninhabitable place like Venus. On the other hand, if Proxima Centauri b formed as something like Neptune, being so close to the star could have blasted away its hydrogen envelope.

“Maybe that planet could have actually transformed from an uninhabitable Neptune-like planet into a rocky planet like the Earth,” Barnes speculated. “This is what we at the University of Washington think is probably the best bet for how this planet could be habitable.”

Barnes is hopeful that the discovery of Proxima Centauri b will help boost support for the sorts of telescopes and observatories that can make the observations needed to learn more about this intriguing exoplanet and determine if it is habitable, and even inhabited.

While Barnes won’t give the odds of life there—there are way too many variables and so little we know right now—he sounds confident that we’ll find life somewhere. He noted that we’ve found life on Earth in the deep sea, extreme deserts, extreme cold, acidic environments, and under other harsh conditions.

“The realization that extreme life is everywhere is part of the astrobiological revolution that is occurring right now in science,” Barnes said. “This recognition that life finds a way gives us confidence as we go forward.”

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Annual Moon viewing festival highlights week’s calendar

The last installment of the Pacific Science Center’s Science Café series and an annual Moon viewing festival are the high points of this week’s astronomy events calendar.

Viewing the Moon

Seattle Japanese GardenThe popular annual Moon Viewing Festival at the Seattle Japanese Garden will be held beginning at 6 p.m. Saturday, September 17 at the garden, which is within the Washington Park Arboretum in Seattle. The evening will include music, a haiku contest, and a traditional Japanese Tea Ceremony. Volunteers from the Seattle Astronomical Society will be on hand with telescopes to offer a great, close-up view of the Moon. Unfortunately, as of this writing the event is sold out.

Farewell to the science café

Pacific Science CenterThe Pacific Science Center is discontinuing its Science Café program after more than ten years at The Swiss Restaurant & Pub in Tacoma, Wilde Rover in Kirkland, and, up until a year or two ago, T.S. McHugh’s in Seattle. The center plans to have many of the same sorts of speakers and topics at its new, onsite Science in the City lectures.

One final astronomy-themed science café remains on the calendar and will be held at The Swiss at 6:30 p.m. Tuesday, September 13Josh Krissansen-Totton of the University of Washington Astrobiology Program and Department of Earth and Space Sciences will give a talk titled “The Search For Life Beyond Earth.” Krissansen-Totton will go beyond the headlines and explore how astronomers and astrobiologists are trying to detect life on exoplanets, and when they’re likely to be successful. Admission is free. Bring questions; there’s always plenty of time for Q-and-A.

OAS meets

Olympic Astronomical SocietyThe Olympic Astronomical Society will hold its monthly meeting at 7:30 p.m. Monday, September 12 in room Art 103 at Olympic College in Bremerton. They plan to make a comet, among other activities.

Futures file

You can scout out future astronomy events on our calendar. New additions this week include:

Up in the sky

September often offers great weather for stargazing as it’s still typically fairly warm in the evenings but the nights are getting longer. This Week’s Sky at a Glance from Sky & Telescope magazine and The Sky This Week from Astronomy have observing highlights for the week.

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