Andrew Mann
@amann.bsky.social
Associate professor of Physics and Astronomy at UNC Chapel Hill studying young exoplanets and stars. Dad to one human and one cat. 🏳️🌈💗💜. Carrboro Citizen. http://andrewwmann.com
Pinned
Andrew Mann
@amann.bsky.social
· Nov 18
Lost Sisters Found: TESS and Gaia Reveal a Dissolving Pleiades Complex
Most star clusters dissolve into the Galaxy over tens to hundreds of millions of years after they form. While recent Gaia studies have honed our view of cluster dispersal, the exact chronology of whic...
arxiv.org
New paper from my group!
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Reposted by Andrew Mann
⭐️ TWO papers hit the arXiv right before Thanksgiving! Check out TIDYE IV and SOYSAUCE I ⭐️
arxiv.org/abs/2511.10734
arxiv.org/abs/2511.14838
arxiv.org/abs/2511.10734
arxiv.org/abs/2511.14838
December 2, 2025 at 9:40 PM
⭐️ TWO papers hit the arXiv right before Thanksgiving! Check out TIDYE IV and SOYSAUCE I ⭐️
arxiv.org/abs/2511.10734
arxiv.org/abs/2511.14838
arxiv.org/abs/2511.10734
arxiv.org/abs/2511.14838
Reposted by Andrew Mann
www.scientificamerican.com/article/the-...
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Astronomers Have Discovered the Pleiades’ Secret Stellar Family
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
www.scientificamerican.com
January 2, 2026 at 10:01 PM
www.scientificamerican.com/article/the-...
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Reposted by Andrew Mann
I wrote this! The Pleiades are up high to the south after sunset now for northern hemisphereans, so take a look at them tonight after reading my article.
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
Astronomers Have Discovered the Pleiades’ Secret Stellar Family
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
www.scientificamerican.com
January 2, 2026 at 6:04 PM
I wrote this! The Pleiades are up high to the south after sunset now for northern hemisphereans, so take a look at them tonight after reading my article.
Reposted by Andrew Mann
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
Astronomers Have Discovered the Pleiades’ Secret Stellar Family
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
www.scientificamerican.com
January 2, 2026 at 6:02 PM
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
www.scientificamerican.com/article/the-...
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Astronomers Have Discovered the Pleiades’ Secret Stellar Family
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history
www.scientificamerican.com
January 2, 2026 at 10:01 PM
www.scientificamerican.com/article/the-...
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Excellent coverage of a major result from our team! 🧪🔭 @sciam.bsky.social
Weird to have a call for TESS cycle 9 when money hasn’t been approved from the cycle 8 call… 🧪🔭💩💰🤑
December 22, 2025 at 6:27 PM
Weird to have a call for TESS cycle 9 when money hasn’t been approved from the cycle 8 call… 🧪🔭💩💰🤑
Read about some of the cool things happening within the UNC Astro teams:
college.unc.edu/2025/12/capt...
🧪🔭💥
college.unc.edu/2025/12/capt...
🧪🔭💥
Capturing the cosmos - College of Arts and Sciences
Recent research by Carolina astronomers has produced new images showcasing the majesty of space.
college.unc.edu
December 16, 2025 at 7:03 PM
Read about some of the cool things happening within the UNC Astro teams:
college.unc.edu/2025/12/capt...
🧪🔭💥
college.unc.edu/2025/12/capt...
🧪🔭💥
Astronomers of BlueSky, I generally use Conda to manage my many python environments. I am being told (by a developer friend) that UV is far better. I'm timid taking advice from a programmer that doesn't know how bad astro code is...
What does everyone else use?
🔭🧪💻🖥️
What does everyone else use?
🔭🧪💻🖥️
December 16, 2025 at 6:08 PM
Astronomers of BlueSky, I generally use Conda to manage my many python environments. I am being told (by a developer friend) that UV is far better. I'm timid taking advice from a programmer that doesn't know how bad astro code is...
What does everyone else use?
🔭🧪💻🖥️
What does everyone else use?
🔭🧪💻🖥️
AAS be like:
Nice paper you got there. Give me $3K.
🔭🧪
Nice paper you got there. Give me $3K.
🔭🧪
December 15, 2025 at 4:11 PM
AAS be like:
Nice paper you got there. Give me $3K.
🔭🧪
Nice paper you got there. Give me $3K.
🔭🧪
Reposted by Andrew Mann
Some have argued to me strongly that even if Loeb is wrong, he’s getting people interested in 3I/ATLAS and that’s a good thing for science.
But Loeb isn't just wrong, he's recklessly following an old playbook that got 39 people killed in 1997.
sites.psu.edu/astrowright/...
But Loeb isn't just wrong, he's recklessly following an old playbook that got 39 people killed in 1997.
sites.psu.edu/astrowright/...
Loeb’s Behavior is Reckless
I’ve largely ignored Loeb for the past few weeks. When he started in on his 3I/ATLAS thing, there were plenty of mainstream media outlets willing to give his claims a wide and credulous platform, and ...
sites.psu.edu
December 7, 2025 at 5:52 PM
Some have argued to me strongly that even if Loeb is wrong, he’s getting people interested in 3I/ATLAS and that’s a good thing for science.
But Loeb isn't just wrong, he's recklessly following an old playbook that got 39 people killed in 1997.
sites.psu.edu/astrowright/...
But Loeb isn't just wrong, he's recklessly following an old playbook that got 39 people killed in 1997.
sites.psu.edu/astrowright/...
Reposted by Andrew Mann
The third paper in as many weeks from the Young Worlds Lab. This paper from @madysonbarber.bsky.social (her third for the year) is focused on the spin-orbit alignment of a 3 Myr planet IRAS04125+2902b
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
Stellar Obliquities of Young Systems, Atmospheres Undergoing Contraction and Escape (SOYSAUCE): a likely aligned orbit for the 3 Myr planet TIDYE-1 b
Despite the wide range of planet-star (mis)alignments in the mature population of transiting exoplanets, the small number of known young transiting planets are nearly all aligned with the rotation axe...
arxiv.org
December 3, 2025 at 5:10 PM
The third paper in as many weeks from the Young Worlds Lab. This paper from @madysonbarber.bsky.social (her third for the year) is focused on the spin-orbit alignment of a 3 Myr planet IRAS04125+2902b
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
The third paper in as many weeks from the Young Worlds Lab. This paper from @madysonbarber.bsky.social (her third for the year) is focused on the spin-orbit alignment of a 3 Myr planet IRAS04125+2902b
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
Stellar Obliquities of Young Systems, Atmospheres Undergoing Contraction and Escape (SOYSAUCE): a likely aligned orbit for the 3 Myr planet TIDYE-1 b
Despite the wide range of planet-star (mis)alignments in the mature population of transiting exoplanets, the small number of known young transiting planets are nearly all aligned with the rotation axe...
arxiv.org
December 3, 2025 at 5:10 PM
The third paper in as many weeks from the Young Worlds Lab. This paper from @madysonbarber.bsky.social (her third for the year) is focused on the spin-orbit alignment of a 3 Myr planet IRAS04125+2902b
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
🧪🔭⭐ #exoplanet #exoplanets
arxiv.org/abs/2511.14838
I'm just testing out these Legos for my kid. Gotta make sure they are tested. Like really test them to the limits.
Call me in 4 hours for the test results.
😜
Call me in 4 hours for the test results.
😜
December 1, 2025 at 10:06 PM
I'm just testing out these Legos for my kid. Gotta make sure they are tested. Like really test them to the limits.
Call me in 4 hours for the test results.
😜
Call me in 4 hours for the test results.
😜
🧪🔭⭐ #exoplanets #exoplanet #youngplanets
New paper from our group and @madysonbarber.bsky.social today!
We report a brand-new planet around a <50 Myr star—adding to a very small (but rapidly growing!) population of the youngest known transiting planets.
Paper: arxiv.org/pdf/2511.10734
New paper from our group and @madysonbarber.bsky.social today!
We report a brand-new planet around a <50 Myr star—adding to a very small (but rapidly growing!) population of the youngest known transiting planets.
Paper: arxiv.org/pdf/2511.10734
arxiv.org
November 19, 2025 at 2:43 PM
🧪🔭⭐ #exoplanets #exoplanet #youngplanets
New paper from our group and @madysonbarber.bsky.social today!
We report a brand-new planet around a <50 Myr star—adding to a very small (but rapidly growing!) population of the youngest known transiting planets.
Paper: arxiv.org/pdf/2511.10734
New paper from our group and @madysonbarber.bsky.social today!
We report a brand-new planet around a <50 Myr star—adding to a very small (but rapidly growing!) population of the youngest known transiting planets.
Paper: arxiv.org/pdf/2511.10734
New paper from my group!
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Lost Sisters Found: TESS and Gaia Reveal a Dissolving Pleiades Complex
Most star clusters dissolve into the Galaxy over tens to hundreds of millions of years after they form. While recent Gaia studies have honed our view of cluster dispersal, the exact chronology of whic...
arxiv.org
November 18, 2025 at 4:25 PM
New paper from my group!
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Stars aren’t born alone—they form in massive associations. If we want to understand how stars and planetary systems form, we need to figure out where today’s clusters came from… and where all their long-lost siblings ended up.
arxiv.org/abs/2511.07533
Reposted by Andrew Mann
Check out NYT coverage of the latest results from Young Worlds Lab graduate student Andy Boyle. 🧪🔭✨⭐️
www.nytimes.com/2025/11/12/s...
www.nytimes.com/2025/11/12/s...
The ‘Lost Sisters’ of the Pleiades Fill the Entire Night Sky
www.nytimes.com
November 12, 2025 at 12:10 PM
Check out NYT coverage of the latest results from Young Worlds Lab graduate student Andy Boyle. 🧪🔭✨⭐️
www.nytimes.com/2025/11/12/s...
www.nytimes.com/2025/11/12/s...
One day the universe will contain only dark energy and JWST proposals.
STScI received a total of 2,935 #JWST proposals requesting almost 101,751 hours of observing time for GO, Survey, Pure Parallel, Archival Research, Target of Opportunity, and Joint programs, with an oversubscription rate of 13:1. Get the details: ow.ly/Fmiq50Xqy9Q
November 12, 2025 at 4:24 PM
One day the universe will contain only dark energy and JWST proposals.
Reposted by Andrew Mann
This is so cool. Siblings of the Pleiades strewn over the entire sky. Within some of the oldest written languages in the world, from Sumerian to Eblaite to Akkadadian and Hebrew, the name for Pleiades has etymological links to the word "family," and now that family is much bigger.
Check out NYT coverage of the latest results from Young Worlds Lab graduate student Andy Boyle. 🧪🔭✨⭐️
www.nytimes.com/2025/11/12/s...
www.nytimes.com/2025/11/12/s...
The ‘Lost Sisters’ of the Pleiades Fill the Entire Night Sky
www.nytimes.com
November 12, 2025 at 2:16 PM
This is so cool. Siblings of the Pleiades strewn over the entire sky. Within some of the oldest written languages in the world, from Sumerian to Eblaite to Akkadadian and Hebrew, the name for Pleiades has etymological links to the word "family," and now that family is much bigger.
Check out NYT coverage of the latest results from Young Worlds Lab graduate student Andy Boyle. 🧪🔭✨⭐️
www.nytimes.com/2025/11/12/s...
www.nytimes.com/2025/11/12/s...
The ‘Lost Sisters’ of the Pleiades Fill the Entire Night Sky
www.nytimes.com
November 12, 2025 at 12:10 PM
Check out NYT coverage of the latest results from Young Worlds Lab graduate student Andy Boyle. 🧪🔭✨⭐️
www.nytimes.com/2025/11/12/s...
www.nytimes.com/2025/11/12/s...
Reposted by Andrew Mann
BREAKING: NASA Goddard Space Flight Center is illegally closing 13 campus buildings (including ~100 laboratories).
Report coming from GESTA, the Goddard employee union
Report coming from GESTA, the Goddard employee union
November 2, 2025 at 4:55 AM
BREAKING: NASA Goddard Space Flight Center is illegally closing 13 campus buildings (including ~100 laboratories).
Report coming from GESTA, the Goddard employee union
Report coming from GESTA, the Goddard employee union
Dear Picasso toys. Whyyyyyyyyyyyy
October 29, 2025 at 10:36 PM
Dear Picasso toys. Whyyyyyyyyyyyy
It's been a long journey from a child who hated going to Synagogue to an adult that hasn't been inside a synagogue in 20 years. But all those years of being a terrible Jew have finally paid off.
October 28, 2025 at 1:44 PM
It's been a long journey from a child who hated going to Synagogue to an adult that hasn't been inside a synagogue in 20 years. But all those years of being a terrible Jew have finally paid off.
Is this satire? I hope this is satire… www.thecrimson.com/article/2025...
It’s My Right To Pull an All-Nighter, Canvas. | Opinion | The Harvard Crimson
As we recover from our fifteen hours without Canvas, we should reflect on how sites like these affect our lives and those around us — for better and for worse. All I ask is this: Professors, please ex...
www.thecrimson.com
October 28, 2025 at 12:17 PM
Is this satire? I hope this is satire… www.thecrimson.com/article/2025...
Prediction for this JWST cycle 🧪🔭
October 17, 2025 at 8:35 PM
Prediction for this JWST cycle 🧪🔭
Reposted by Andrew Mann
This is now more than double the NASA budget, which the White House wants to slash.
BREAKING: The Trump administration is doubling its Argentina bailout to $40 billion.
October 15, 2025 at 8:43 PM
This is now more than double the NASA budget, which the White House wants to slash.