Astronomical Society of the Pacific
@astrosociety.org
Through its materials, resources, and programs, the ASP promotes public science interest, engagement, and literacy through the awe and wonder of astronomy and related fields. Founded in 1889, the ASP is the first national astronomy organization in the US.
Pinned
Unistellar Telescope Training: Learn, Image & Do Real Science (Jan 21)
Master your Unistellar telescope and contribute to real astronomy. Five live online workshops start Jan 21. Early bird $199. Beginner-friendly.
bit.ly
Giving a @unistellar.bsky.social #telescope? Pair it with the perfect gift — a workshop that teaches you to turn images into real #science.
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
Reposted by Astronomical Society of the Pacific
Ready to welcome back the light, even if it's only a few more minutes each day.
The winter solstice occurs Sunday morning at 10:03am EST — the longest night of the year.
Long before modern calendars, people knew this moment in advance. From Newgrange to Chankillo, ancient monuments show how careful skywatching became humanity’s first way of trusting time.
🧪🔭
bit.ly/WhySolstice
Long before modern calendars, people knew this moment in advance. From Newgrange to Chankillo, ancient monuments show how careful skywatching became humanity’s first way of trusting time.
🧪🔭
bit.ly/WhySolstice
December 21, 2025 at 4:07 AM
Ready to welcome back the light, even if it's only a few more minutes each day.
Reposted by Astronomical Society of the Pacific
True! Many people live in cities where all but the brightest stars have been erased due to light pollution. When we can no longer see a dark starry night sky with the Milky Way blazing overhead, something fundamental to being human has been lost. I think that's what Calvin & Hobbes captures here. 🧪🔭
December 21, 2025 at 1:40 AM
True! Many people live in cities where all but the brightest stars have been erased due to light pollution. When we can no longer see a dark starry night sky with the Milky Way blazing overhead, something fundamental to being human has been lost. I think that's what Calvin & Hobbes captures here. 🧪🔭
The winter solstice occurs Sunday morning at 10:03am EST — the longest night of the year.
Long before modern calendars, people knew this moment in advance. From Newgrange to Chankillo, ancient monuments show how careful skywatching became humanity’s first way of trusting time.
🧪🔭
bit.ly/WhySolstice
Long before modern calendars, people knew this moment in advance. From Newgrange to Chankillo, ancient monuments show how careful skywatching became humanity’s first way of trusting time.
🧪🔭
bit.ly/WhySolstice
December 20, 2025 at 5:18 PM
The winter solstice occurs Sunday morning at 10:03am EST — the longest night of the year.
Long before modern calendars, people knew this moment in advance. From Newgrange to Chankillo, ancient monuments show how careful skywatching became humanity’s first way of trusting time.
🧪🔭
bit.ly/WhySolstice
Long before modern calendars, people knew this moment in advance. From Newgrange to Chankillo, ancient monuments show how careful skywatching became humanity’s first way of trusting time.
🧪🔭
bit.ly/WhySolstice
Got a #Unistellar #telescope? Ready to go beyond imaging?
“This workshop showed me how to turn my telescope images into real #science.”
-- participant
Next cohort starts Jan 21.
👉 bit.ly/UnistellarWo...
“This workshop showed me how to turn my telescope images into real #science.”
-- participant
Next cohort starts Jan 21.
👉 bit.ly/UnistellarWo...
December 11, 2025 at 5:02 PM
Got a #Unistellar #telescope? Ready to go beyond imaging?
“This workshop showed me how to turn my telescope images into real #science.”
-- participant
Next cohort starts Jan 21.
👉 bit.ly/UnistellarWo...
“This workshop showed me how to turn my telescope images into real #science.”
-- participant
Next cohort starts Jan 21.
👉 bit.ly/UnistellarWo...
If you're looking for a great introduction to space for the kiddos in your life this holiday season, be sure to check out the #ASPLibrary!
Just added a bunch of photos to make the kids books easier to browse. Lots of goodies for tiny stargazers!
#ASPLibrary 🧪 📚 🔭
#ASPLibrary 🧪 📚 🔭
Children's books now added! They range from series to young adult, picture books to chapter books. Surely you have some kids in your life that you need to get hooked on the Universe...
#ASPLibrary 🧪 📚 🔭
www.asplibraryproject.com/blog/childre...
#ASPLibrary 🧪 📚 🔭
www.asplibraryproject.com/blog/childre...
December 10, 2025 at 8:33 PM
If you're looking for a great introduction to space for the kiddos in your life this holiday season, be sure to check out the #ASPLibrary!
We are delighted to welcome @amyimhoff1701.bsky.social as our new Director of Brand Development. Her commitment to accessible astronomy and community-building will strengthen #ASP's mission in exciting ways.
I am thrilled to announce that I've accepted a new role as Director of Digital Brand Development for @astrosociety.org! I am honored to join this space nonprofit, founded in 1889 (!!), & support science education, accessible astronomy literacy, & community building around a love of the cosmos. 💫🪐
🧵
🧵
December 9, 2025 at 5:34 PM
We are delighted to welcome @amyimhoff1701.bsky.social as our new Director of Brand Development. Her commitment to accessible astronomy and community-building will strengthen #ASP's mission in exciting ways.
Reposted by Astronomical Society of the Pacific
This two-part illustration represents supernova GRB 250314A as it was exploding and three months after that when #NASAWebb observed it. Webb confirmed the supernova occurred when the universe was only 730 million years old.
Credit: NASA, ESA, CSA, STScI, Leah Hustak (STScI).
Credit: NASA, ESA, CSA, STScI, Leah Hustak (STScI).
December 9, 2025 at 5:25 PM
This two-part illustration represents supernova GRB 250314A as it was exploding and three months after that when #NASAWebb observed it. Webb confirmed the supernova occurred when the universe was only 730 million years old.
Credit: NASA, ESA, CSA, STScI, Leah Hustak (STScI).
Credit: NASA, ESA, CSA, STScI, Leah Hustak (STScI).
Got a #Unistellar #telescope?
Learn how to turn your images into real #scientific data.
#ASP × #Unistellar × #SETI launch a 5-part workshop on photometry, light curves, FITS analysis & #exoplanet transits.
Starts Jan 21.
👉 bit.ly/UnistellarWo...
Learn how to turn your images into real #scientific data.
#ASP × #Unistellar × #SETI launch a 5-part workshop on photometry, light curves, FITS analysis & #exoplanet transits.
Starts Jan 21.
👉 bit.ly/UnistellarWo...
Unistellar Telescope Training: Learn, Image & Do Real Science (Jan 21)
Master your Unistellar telescope and contribute to real astronomy. Five live online workshops start Jan 21. Early bird $199. Beginner-friendly.
bit.ly
December 9, 2025 at 5:30 PM
Got a #Unistellar #telescope?
Learn how to turn your images into real #scientific data.
#ASP × #Unistellar × #SETI launch a 5-part workshop on photometry, light curves, FITS analysis & #exoplanet transits.
Starts Jan 21.
👉 bit.ly/UnistellarWo...
Learn how to turn your images into real #scientific data.
#ASP × #Unistellar × #SETI launch a 5-part workshop on photometry, light curves, FITS analysis & #exoplanet transits.
Starts Jan 21.
👉 bit.ly/UnistellarWo...
Reposted by Astronomical Society of the Pacific
Got or gifting a #Unistellar #telescope?!
Pair it with the perfect upgrade — a 5-part #ASP × Unistellar × #SETI #online workshop that teaches you to turn images into real #science: #photometry, light curves, FITS analysis, #exoplanet transits + more.
Starts Jan 21 → bit.ly/UnistellarWorkshop
Pair it with the perfect upgrade — a 5-part #ASP × Unistellar × #SETI #online workshop that teaches you to turn images into real #science: #photometry, light curves, FITS analysis, #exoplanet transits + more.
Starts Jan 21 → bit.ly/UnistellarWorkshop
Unistellar Telescope Training: Learn, Image & Do Real Science (Jan 21)
Master your Unistellar telescope and contribute to real astronomy. Five live online workshops start Jan 21. Early bird $199. Beginner-friendly.
bit.ly
December 9, 2025 at 2:18 AM
Got or gifting a #Unistellar #telescope?!
Pair it with the perfect upgrade — a 5-part #ASP × Unistellar × #SETI #online workshop that teaches you to turn images into real #science: #photometry, light curves, FITS analysis, #exoplanet transits + more.
Starts Jan 21 → bit.ly/UnistellarWorkshop
Pair it with the perfect upgrade — a 5-part #ASP × Unistellar × #SETI #online workshop that teaches you to turn images into real #science: #photometry, light curves, FITS analysis, #exoplanet transits + more.
Starts Jan 21 → bit.ly/UnistellarWorkshop
Reposted by Astronomical Society of the Pacific
Fun note: this course will be co-led by one of JuliaAstro's core members and @setiinstitute.bsky.social astronomers, Dr. Ian Weaver. See our community tools in action in this workshop, and more at juliaastro.org.
Giving a @unistellar.bsky.social #telescope? Pair it with the perfect gift — a workshop that teaches you to turn images into real #science.
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
Unistellar Telescope Training: Learn, Image & Do Real Science (Jan 21)
Master your Unistellar telescope and contribute to real astronomy. Five live online workshops start Jan 21. Early bird $199. Beginner-friendly.
bit.ly
December 7, 2025 at 10:55 PM
Fun note: this course will be co-led by one of JuliaAstro's core members and @setiinstitute.bsky.social astronomers, Dr. Ian Weaver. See our community tools in action in this workshop, and more at juliaastro.org.
Giving a @unistellar.bsky.social #telescope? Pair it with the perfect gift — a workshop that teaches you to turn images into real #science.
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
Unistellar Telescope Training: Learn, Image & Do Real Science (Jan 21)
Master your Unistellar telescope and contribute to real astronomy. Five live online workshops start Jan 21. Early bird $199. Beginner-friendly.
bit.ly
December 7, 2025 at 9:02 PM
Giving a @unistellar.bsky.social #telescope? Pair it with the perfect gift — a workshop that teaches you to turn images into real #science.
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
ASP × Unistellar × @setiinstitute.bsky.social
Starts Jan 21 · 5 live #online sessions
Light curves, photometry, exoplanets + more.
👉 bit.ly/UnistellarWorkshop
Reposted by Astronomical Society of the Pacific
@chanda.blacksky.app on the off chance that you like used books as much as I do, I thought you might be interested in the one's the @astrosociety.org is selling - shelves F, and lower G especially...
www.asplibraryproject.com
www.asplibraryproject.com
December 5, 2025 at 8:57 PM
@chanda.blacksky.app on the off chance that you like used books as much as I do, I thought you might be interested in the one's the @astrosociety.org is selling - shelves F, and lower G especially...
www.asplibraryproject.com
www.asplibraryproject.com
Reposted by Astronomical Society of the Pacific
Used 🔭⚛️🧪 book sale !!
@chanda.blacksky.app on the off chance that you like used books as much as I do, I thought you might be interested in the one's the @astrosociety.org is selling - shelves F, and lower G especially...
www.asplibraryproject.com
www.asplibraryproject.com
December 5, 2025 at 9:00 PM
Used 🔭⚛️🧪 book sale !!
Reposted by Astronomical Society of the Pacific
This #GivingTuesday, we’re asking you to join a movement of generosity that lasts 365. Give monthly to the ASP; one day of giving is powerful, but sustained giving changes everything. Donate today: buff.ly/F5ILcBO
December 2, 2025 at 8:17 PM
This #GivingTuesday, we’re asking you to join a movement of generosity that lasts 365. Give monthly to the ASP; one day of giving is powerful, but sustained giving changes everything. Donate today: buff.ly/F5ILcBO
Reposted by Astronomical Society of the Pacific
Whether you practice #CyberMonday or not (I know most of us are not super fans of capitalism and all but...), buying any of these books will give them a second life AND support an amazing nonprofit @astrosociety.org dedicated to science education+literacy. BONUS: no $ to amazon. 😉
#ASPLibrary 🧪 📚 🔭
#ASPLibrary 🧪 📚 🔭
Okay space/science/book nerds, I've come up with a way to share ALL the @astrosociety.org books that are available for purchase: www.asplibraryproject.com 🧪 📚 🔭
Each bookcase is a blog post with photos of each and every shelf. If you see something you like, fill out the contact form!
#ASPLIbrary
Each bookcase is a blog post with photos of each and every shelf. If you see something you like, fill out the contact form!
#ASPLIbrary
ASP Library Project
www.asplibraryproject.com
December 1, 2025 at 8:58 PM
Whether you practice #CyberMonday or not (I know most of us are not super fans of capitalism and all but...), buying any of these books will give them a second life AND support an amazing nonprofit @astrosociety.org dedicated to science education+literacy. BONUS: no $ to amazon. 😉
#ASPLibrary 🧪 📚 🔭
#ASPLibrary 🧪 📚 🔭
Reposted by Astronomical Society of the Pacific
For #GivingTuesday, you can:
- support @astrosociety.org & USPS
- introduce a kid to the wonders of the universe
- give these books a second life
- BONUS: no $ to Amazon
#ASPLibrary 🧪 📚 🔭
- support @astrosociety.org & USPS
- introduce a kid to the wonders of the universe
- give these books a second life
- BONUS: no $ to Amazon
#ASPLibrary 🧪 📚 🔭
Children's books now added! They range from series to young adult, picture books to chapter books. Surely you have some kids in your life that you need to get hooked on the Universe...
#ASPLibrary 🧪 📚 🔭
www.asplibraryproject.com/blog/childre...
#ASPLibrary 🧪 📚 🔭
www.asplibraryproject.com/blog/childre...
Children’s Books — ASP Library Project
The Children’s Books category includes: picture books, cultural books, a range of beginner books on space and astronomy, and more. Photos of all the Children’s Books are below. If you are interes...
www.asplibraryproject.com
December 2, 2025 at 5:43 PM
For #GivingTuesday, you can:
- support @astrosociety.org & USPS
- introduce a kid to the wonders of the universe
- give these books a second life
- BONUS: no $ to Amazon
#ASPLibrary 🧪 📚 🔭
- support @astrosociety.org & USPS
- introduce a kid to the wonders of the universe
- give these books a second life
- BONUS: no $ to Amazon
#ASPLibrary 🧪 📚 🔭
This #GivingTuesday, we’re asking you to join a movement of generosity that lasts 365. Give monthly to the ASP; one day of giving is powerful, but sustained giving changes everything. Donate today: buff.ly/F5ILcBO
December 2, 2025 at 8:17 PM
This #GivingTuesday, we’re asking you to join a movement of generosity that lasts 365. Give monthly to the ASP; one day of giving is powerful, but sustained giving changes everything. Donate today: buff.ly/F5ILcBO
If you wanted to make an apple pie from scratch for today, you’re ~13.8 billion years late!🧪🔭
#CarlSagan was right: every apple, every atom, every one of us was forged in ancient stars.
ASP's own @shanilv.ca tells the #cosmic story behind your #Thanksgiving pie:
🔗 open.substack.com/pub/ourislan...
#CarlSagan was right: every apple, every atom, every one of us was forged in ancient stars.
ASP's own @shanilv.ca tells the #cosmic story behind your #Thanksgiving pie:
🔗 open.substack.com/pub/ourislan...
November 27, 2025 at 8:59 PM
If you wanted to make an apple pie from scratch for today, you’re ~13.8 billion years late!🧪🔭
#CarlSagan was right: every apple, every atom, every one of us was forged in ancient stars.
ASP's own @shanilv.ca tells the #cosmic story behind your #Thanksgiving pie:
🔗 open.substack.com/pub/ourislan...
#CarlSagan was right: every apple, every atom, every one of us was forged in ancient stars.
ASP's own @shanilv.ca tells the #cosmic story behind your #Thanksgiving pie:
🔗 open.substack.com/pub/ourislan...
Reposted by Astronomical Society of the Pacific
Bookcase H is small but mighty: uncorrected advance proofs and pop-sci books you'd find in most bookstores, but getting them from me means supporting @astrosociety.org which you know you want to do. 😉
www.asplibraryproject.com/blog/bookcas...
www.asplibraryproject.com/blog/bookcas...
Bookcase H — ASP Library Project
Bookcase H includes: uncorrected proofs and popular mainstream science books/authors.
www.asplibraryproject.com
November 25, 2025 at 6:33 PM
Bookcase H is small but mighty: uncorrected advance proofs and pop-sci books you'd find in most bookstores, but getting them from me means supporting @astrosociety.org which you know you want to do. 😉
www.asplibraryproject.com/blog/bookcas...
www.asplibraryproject.com/blog/bookcas...
Science education is facing unprecedented challenges. Your support for the Astronomical Society of the Pacific helps fund programs that inspire curiosity, empower educators, and open the universe to everyone. Donate today at bit.ly/43RjDkC
November 26, 2025 at 8:02 PM
Science education is facing unprecedented challenges. Your support for the Astronomical Society of the Pacific helps fund programs that inspire curiosity, empower educators, and open the universe to everyone. Donate today at bit.ly/43RjDkC
ASP's very own Hakeem Oluseyi, host of Particles of Thought, breaks down how his show tackles some of science's biggest questions:
🧠 How does consciousness work?
🕳️ What happens if you fall into a black hole?
🦖 What would happen if we brought back extinct species?
www.npr.org/2025/11/23/n...
🧠 How does consciousness work?
🕳️ What happens if you fall into a black hole?
🦖 What would happen if we brought back extinct species?
www.npr.org/2025/11/23/n...
Why do we get goosebumps? A podcast tries to answer science's surprising questions
Hakeem Oluseyi, host of NOVA and GBH's podcast Particles of Thought, breaks down how his show tackles some of science's biggest and strangest questions.
www.npr.org
November 24, 2025 at 9:31 PM
ASP's very own Hakeem Oluseyi, host of Particles of Thought, breaks down how his show tackles some of science's biggest questions:
🧠 How does consciousness work?
🕳️ What happens if you fall into a black hole?
🦖 What would happen if we brought back extinct species?
www.npr.org/2025/11/23/n...
🧠 How does consciousness work?
🕳️ What happens if you fall into a black hole?
🦖 What would happen if we brought back extinct species?
www.npr.org/2025/11/23/n...
Reposted by Astronomical Society of the Pacific
Okay space/science/book nerds, I've come up with a way to share ALL the @astrosociety.org books that are available for purchase: www.asplibraryproject.com 🧪 📚 🔭
Each bookcase is a blog post with photos of each and every shelf. If you see something you like, fill out the contact form!
#ASPLIbrary
Each bookcase is a blog post with photos of each and every shelf. If you see something you like, fill out the contact form!
#ASPLIbrary
ASP Library Project
www.asplibraryproject.com
November 24, 2025 at 6:38 PM
Okay space/science/book nerds, I've come up with a way to share ALL the @astrosociety.org books that are available for purchase: www.asplibraryproject.com 🧪 📚 🔭
Each bookcase is a blog post with photos of each and every shelf. If you see something you like, fill out the contact form!
#ASPLIbrary
Each bookcase is a blog post with photos of each and every shelf. If you see something you like, fill out the contact form!
#ASPLIbrary
𝗝𝘂𝘀𝘁 $𝟭𝟮𝟬 𝘁𝗿𝗮𝗶𝗻𝘀 𝘁𝗵𝗿𝗲𝗲 𝗲𝗱𝘂𝗰𝗮𝘁𝗼𝗿𝘀 𝗶𝗻 𝘃𝗶𝘁𝗮𝗹 𝗮𝘀𝘁𝗿𝗼𝗻𝗼𝗺𝘆 𝘀𝗸𝗶𝗹𝗹𝘀—𝗯𝘂𝘁 𝘄𝗲 𝗻𝗲𝗲𝗱 𝘆𝗼𝘂𝗿 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗻𝗼𝘄.
Your immediate action and generous donation will help shape what comes next and ensure that humanity not only learns science, but truly feels at home in it.
👉 Donate Today! buff.ly/O97hzBz
Your immediate action and generous donation will help shape what comes next and ensure that humanity not only learns science, but truly feels at home in it.
👉 Donate Today! buff.ly/O97hzBz
November 18, 2025 at 11:47 PM
𝗝𝘂𝘀𝘁 $𝟭𝟮𝟬 𝘁𝗿𝗮𝗶𝗻𝘀 𝘁𝗵𝗿𝗲𝗲 𝗲𝗱𝘂𝗰𝗮𝘁𝗼𝗿𝘀 𝗶𝗻 𝘃𝗶𝘁𝗮𝗹 𝗮𝘀𝘁𝗿𝗼𝗻𝗼𝗺𝘆 𝘀𝗸𝗶𝗹𝗹𝘀—𝗯𝘂𝘁 𝘄𝗲 𝗻𝗲𝗲𝗱 𝘆𝗼𝘂𝗿 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗻𝗼𝘄.
Your immediate action and generous donation will help shape what comes next and ensure that humanity not only learns science, but truly feels at home in it.
👉 Donate Today! buff.ly/O97hzBz
Your immediate action and generous donation will help shape what comes next and ensure that humanity not only learns science, but truly feels at home in it.
👉 Donate Today! buff.ly/O97hzBz
Reposted by Astronomical Society of the Pacific
In a related thread to this one...here are some of the awesome radio astronomy related books that will be available soon from @astrosociety.org! 📡
#TeamRadio
#TeamRadio
Who here is watching Pluribus?! 🙂
November 14, 2025 at 8:17 PM
In a related thread to this one...here are some of the awesome radio astronomy related books that will be available soon from @astrosociety.org! 📡
#TeamRadio
#TeamRadio
Reposted by Astronomical Society of the Pacific
About to head into the city to spend the day at @astrosociety.org. This is the room I live in now. 🧪 📚 🔭
November 12, 2025 at 5:46 PM
About to head into the city to spend the day at @astrosociety.org. This is the room I live in now. 🧪 📚 🔭