Want to hear from someone who walked on the Moon? Harrison Schmitt, one of the four surviving astronauts to have walked on the Moon, will be giving a talk about his experiences today at 2PM. Live-streamed on YouTube.

Caltech Astro@caltechastro.bsky.social · 6d ago

Caltech will be hosting astronaut and statesman Harrison Schmitt on Tuesday, August 4 @ 2PM. Dr. Schmitt served as the Lunar Module Pilot on Apollo 17 and is one of the four surviving people to have walked on the Moon. For more information, see: outreach.astro.caltech.edu

Happening Tonight @ 7:30PM. Join us for a beer and black holes!

Caltech Astro@caltechastro.bsky.social · 2w ago

How do black holes literally tear apart stars? What causes the Sun to erupt and send material into space? Join us Monday, August 3rd at 7:30PM at our next Astronomy on Tap. Science, telescopes, pub trivia--all for free! outreach.astro.caltech.edu/aot

How can black holes serve as cosmic fossils, revealing the lives of the massive stars that created them billions of years ago? Floor Broekgaarden, astrophysicist at UC San Diego discussed this topic at Astronomy on Tap! Her presentation is on YouTube: www.youtube.com/watch?v=yzn5...

Caltech will be hosting astronaut and statesman Harrison Schmitt on Tuesday, August 4 @ 2PM. Dr. Schmitt served as the Lunar Module Pilot on Apollo 17 and is one of the four surviving people to have walked on the Moon. For more information, see: outreach.astro.caltech.edu

What can an x-ray view of the sky tell us about dark energy and how the universe evolved over billions of years? Last month we hosted Esra Bulbul, the lead cosmologist working on the eROSITA x-ray mission, to discuss the mission and relevant science at our Astronomy on Tap event.

Join us next Monday to hear all about black holes tearing apart stars and extreme solar eruptions at our next Astronomy on Tap!

Caltech Astro@caltechastro.bsky.social · 2w ago

How do black holes literally tear apart stars? What causes the Sun to erupt and send material into space? Join us Monday, August 3rd at 7:30PM at our next Astronomy on Tap. Science, telescopes, pub trivia--all for free! outreach.astro.caltech.edu/aot

NASA's Roman Space Telescope launches in a month. Last week, NASA scientist Lee Armus joined us to talk about the mission and its science goals, from exoplanet direct imaging to studying the nature of dark matter and dark energy! His presentation is now up on YouTube: www.youtube.com/watch?v=gGVa...

Join us tonight to learn all about the new NASA Roman Space Telescope and all of the cool science it will do: cosmology, exoplanets, galaxies, and more! It's launching in a month! Telescopes after the presentation. In-person and live-streamed on YouTube.

Caltech Astro@caltechastro.bsky.social · 4w ago

NASA is launching its next great observatory, the Roman Space Telescope in September 2026. What will it do? What new discoveries is it expected to make? Join us for our next Stargazing Lecture from Senior Research Scientist Dr. Lee Armus to learn more! outreach.astro.caltech.edu

Do you like national parks and astronomy? Join us in two weeks at Lassen National Park for a weekend of astronomy. There will be guided stargazing with telescopes, constellation tours, and presentations from NASA+Caltech scientists! www.nps.gov/lavo/planyou...

How do black holes literally tear apart stars? What causes the Sun to erupt and send material into space? Join us Monday, August 3rd at 7:30PM at our next Astronomy on Tap. Science, telescopes, pub trivia--all for free! outreach.astro.caltech.edu/aot

There is an article in the Caltech Magazine about our recent City of Astronomy Science Festival. Hopefully we will do this again. caltechmagazine.squarespace.com/post/pasaden...

The Cosmos in the Convention Center: Caltech Stars in Pasadena’s City of Astronomy Festival — Caltech Magazine

Families and astronomy buffs enjoyed interacting with scientists from a stunning array of astronomy and space organizations in and near Pasadena, including from Caltech’s campus, JPL, and IPAC. By ...

caltechmagazine.squarespace.com

What goes on inside of a star cluster? What happens to black holes that form there? We recently hosted Professor Kyle Kremer to describe the extreme conditions in these dense environments and their consequences. Now up on YouTube: www.youtube.com/watch?v=sYAB...

Join us in a week for our next Stargazing Lecture, introducing the NASA Roman Space Telescope, which will launch into space in 6 weeks and transform our understanding of the cosmos!

Caltech Astro@caltechastro.bsky.social · 4w ago

NASA is launching its next great observatory, the Roman Space Telescope in September 2026. What will it do? What new discoveries is it expected to make? Join us for our next Stargazing Lecture from Senior Research Scientist Dr. Lee Armus to learn more! outreach.astro.caltech.edu

We helped host the City of Astronomy Science Festival last month, featuring lots of science activities over a Sunday afternoon. It was magical with over 2000 attendees, including Mayor Gordo and Congresswoman Chu. For more information, see: www.cityofastronomy.org/about

Happening tonight!

Caltech Astro@caltechastro.bsky.social · 4w ago

How were galaxies discovered right here in Los Angeles at the Mt. Wilson Observatory? What causes gamma-ray bursts, the most powerful explosions in the universe? Join us Monday, July 13th at 7:30PM at our next Astronomy on Tap. outreach.astro.caltech.edu/aot

Is there significant evidence for extraterrestrial life? What do scientists think about aliens? We recently hosted Dr. Tom Rice, Professor of Physics at George Washington University as he discussed this exciting topic. Now up on our YouTube channel: youtu.be/jt7ObvfM0xI

NASA is launching its next great observatory, the Roman Space Telescope in September 2026. What will it do? What new discoveries is it expected to make? Join us for our next Stargazing Lecture from Senior Research Scientist Dr. Lee Armus to learn more! outreach.astro.caltech.edu

How were galaxies discovered right here in Los Angeles at the Mt. Wilson Observatory? What causes gamma-ray bursts, the most powerful explosions in the universe? Join us Monday, July 13th at 7:30PM at our next Astronomy on Tap. outreach.astro.caltech.edu/aot

How can we find the darkest skies in the USA, and what can we do to preserve them? Stephen Hummel, Director of Dark Sky Preservation at McDonald Observatory gave our 150th Astronomy on Tap event last month on this important topic. Now on our YouTube: www.youtube.com/watch?v=HiKw...

Caltech's new president is an astronomer.

Caltech@caltech.edu · last mo.

Today, Caltech and JPL welcome renowned astrophysicist, acclaimed author, and transformative leader, Ray Jayawardhana as the Institute’s tenth president! He brings a fierce commitment to building on Caltech’s legacy of discovery and exploration. Welcome to the frontier, RayJay! l1nq.com/uci46q8

Interested in learning about what exists in the emptiness of space? Dr. Stella Ocker gave a great Stargazing Lecture last week on this topic to a packed auditorium. Her presentation is now up on our YouTube channel! www.youtube.com/live/j1D5PgC...

What matter actually lies in the voids of space? Join us tonight at our Stargazing Lecture accompanied by telescopes! See you at 8PM!

Caltech Astro@caltechastro.bsky.social · 2mo ago

What fills the seemingly empty void between the stars? And how can mysterious cosmic beacons help us uncover the structure of the invisible universe? Join us for our next Stargazing Lecture on Friday, June 26 to learn more. In-person and live-streamed! outreach.astro.caltech.edu

What's going on in the center of our Milky Way? Our 150th Astronomy on Tap featured Prof. Cara Battersby from UConn discussing her research on star formation in the galactic center. Now on our YouTube channel: www.youtube.com/watch?v=VoAX...

What fills the seemingly empty void between the stars? And how can mysterious cosmic beacons help us uncover the structure of the invisible universe? Join us for our next Stargazing Lecture on Friday, June 26 to learn more. In-person and live-streamed! outreach.astro.caltech.edu

Join us tonight (Wednesday) for our final Astronomy on Tap this week to close out our 10th Anniversary celebration! It's all about black holes from award-winning scientists and will feature live music!

Caltech Astro@caltechastro.bsky.social · 2mo ago

How can we study black holes as cosmic fossils? What can we learn about black holes, neutron stars, and white dwarfs in star clusters? Join us Wed, June 17th for our 3rd Astronomy on Tap of the week featuring telescopes, pub trivia, music, and science! outreach.astro.caltech.edu/aot

Happening tonight (Tuesday) for our 10th Anniversary Week of events!

Caltech Astro@caltechastro.bsky.social · 2mo ago

What does the night sky look like in x-rays and why? Do professional astronomers think aliens actually exist and why? Join us at 7:30PM Tuesday, June 16th for a very special Astronomy on Tap to discuss these questions for our 10th anniversary! Free to all! outreach.astro.caltech.edu/aot

Join us tonight for our 150th Astronomy on Tap with an all-star lineup!

Caltech Astro@caltechastro.bsky.social · 2mo ago

How does gas form into stars in the center of our Milky Way? How can we best experience and preserve dark skies in an age of light? Join us at 7:30PM Monday, June 15th for our 150th Astronomy on Tap (and the first of three this week)! outreach.astro.caltech.edu/aot

Our City of Astronomy Science Festival takes place this Sunday (June 14) at the Pasadena Convention Center 1-5PM. Come join us for a family-friendly afternoon of science demonstrations, solar telescopes, and public presentations, all for FREE! www.cityofastronomy.org/astrofest2026

Join us this Sunday for a FREE science festival at the Pasadena Convention Center, featuring science demonstrations, solar telescopes, and presentations from scientists at Caltech, NASA JPL, Carnegie, LIGO, and more! Sunday June 14, 1-5PM. Free and open to all ages.

Caltech Astro@caltechastro.bsky.social · 2mo ago

How can we study black holes as cosmic fossils? What can we learn about black holes, neutron stars, and white dwarfs in star clusters? Join us Wed, June 17th for our 3rd Astronomy on Tap of the week featuring telescopes, pub trivia, music, and science! outreach.astro.caltech.edu/aot

How can we study black holes as cosmic fossils? What can we learn about black holes, neutron stars, and white dwarfs in star clusters? Join us Wed, June 17th for our 3rd Astronomy on Tap of the week featuring telescopes, pub trivia, music, and science! outreach.astro.caltech.edu/aot