Peter Edmonds

The science behind why some auroras have such stunning wave patterns Auroras, shimmering bands of light that shoot through the night sky near the Earth’s poles, can follow patterns known as arcs

The science behind why some auroras have such stunning wave patterns www.scientificamerican.com/article/the-...

AAS Press Office The YouTube channel of the American Astronomical Society's Press Office, managed by AAS Press Officer Dr. Susanna Kohler.

The second press briefing of #AAS247 here in Phoenix, AZ is almost in the Q&A phase. You can watch the briefing here & also watch replays of previous briefings: www.youtube.com/c/AASPressOf... The press kit with the full schedule is here: aas.org/meetings/aas... - press releases should appear soon.

I'm at the first press briefing of the 3rd full day of #AAS247. You can watch live - it JUST started: www.youtube.com/c/AASPressOf... and here is the program aas.org/meetings/aas... Press releases will be posted soon.

Here's the Chandra press release for this cool - and also hot - new movie. chandra.si.edu/photo/2026/k... #AAS247

Watch along to see a really cool movie showing Kepler's Supernova Remnant expanding, taken by NASA's Chandra X-ray Observatory, over 25 years.

AAS Press Office The YouTube channel of the American Astronomical Society's Press Office, managed by AAS Press Officer Dr. Susanna Kohler.

I'm at the second press briefing of today's #AAS247 meeting. Watch live here, starting in 2 mins: www.youtube.com/c/AASPressOf... and the program is here aas.org/meetings/aas..., which is where press releases will soon be posted.

A conference room with a panel of speakers in front and high-def TV screens

I'm at the first press briefing of the second day of #AAS247. Some very cool results about "News from the High-Redshift Universe and Local Analogs". Watch here: www.youtube.com/c/AASPressOf... and the program is here: aas.org/meetings/aas...

AAS Press Office The YouTube channel of the American Astronomical Society's Press Office, managed by AAS Press Officer Dr. Susanna Kohler.

Check out the 2nd press briefing at #AAS247 about to start any second. Watch live here: www.youtube.com/c/AASPressOf... and the program is here: aas.org/meetings/aas... That last URL will include links to press releases as they become available shortly, as with this morning's briefing.

NASA's Hubble Examines Cloud-9, First of New Type of Object - NASA Science A team using Hubble uncovered a new type of astronomical object — a starless, gas-rich, dark-matter cloud, a remnant of early galaxy formation.

#AAS247 Space Telescope Science Institute: NASA’s Hubble Examines Cloud-9, First of New Type of Object science.nasa.gov/missions/hub...

NSF NRAO Radio Telescopes Help Reveal Cloud-9, a Starless Dark-Matter “Failed Galaxy” Near M94 - National Radio Astronomy Observatory Astronomers using NSF’s VLA and GBT, along with NASA’s Hubble Space Telescope, have confirmed Cloud-9 near M94 as a starless, dark-matter–dominated gas cloud—offering rare evidence for long-predicted ...

NEW from #AAS247: NSF NRAO Radio Telescopes Help Reveal Cloud-9, a Starless Dark-Matter “Failed Galaxy” Near M94

https://public.nrao.edu/news/starless-dark-matter-failed-galaxy-near-m94/

#AAS #Astronomy #RadioAstronomy #VeryLargeArray #GreenBankTelescope

AAS Press Office The YouTube channel of the American Astronomical Society's Press Office, managed by AAS Press Officer Dr. Susanna Kohler.

I’m at the 247th meeting of the American Astronomical Society in Phoenix Arizona. To watch the press briefing about to start watch here www.youtube.com/c/AASPressOf... The briefing schedule is here aas.org/meetings/aas... #aas247

So cool!

3I/ATLAS is Still a Single Body with a Sunward Anti-Tail After Perihelion! Breaking News: The interstellar object 3I/ATLAS did not break up near the Sun.

Any planetary scientists want to help me out with Avi's latest?

avi-loeb.medium.com/3i-atlas-is-...

3I/ATLAS has apparently passed his new totally-made-up test for being a spacecraft. I don't think anyone is surprised it's still in one piece but we're way outside my (and his) expertise here.

🔭🧪

Interstellar comet 3I/ATLAS was born with different and more ancient chemistry, has been more irradiated, and is speeding toward the Sun faster compared to Solar System comets. It's got a unique personality. But since literally Day 1 it was recognized as a comet and has only ever done comety things.

Image of wooden bookshelf packed with space books. Three shelves are visiible with yellow and blue post-it notes on them.

Hi Bluesky friends! I've been MIA for a while, but I'm coming back because I have some fun news...

I'm helping the Astronomical Society of the Pacific sell/rehome their library because they are downsizing their office space. There are sooooooo many cool finds. I'm going to share as many as I can! 🔭

The Harvard Scientist, Kim Kardashian and the Comet That Probably Isn’t an Alien Spaceship

A fascinating read: “The Harvard Scientist, Kim Kardashian and the Comet That Probably Isn’t an Alien Spaceship” www.nytimes.com/2025/11/08/s...

I expect it already has!

Her broad science communication, which includes a strong Chandra component.

Preach!

A Decade of Gravitational Waves This is just a quick post to mark the fact that it is now ten years to the day since the first detection of gravitational waves by Advanced LIGO. The acronym LIGO stands for Laser Interferometer Gravitational-wave Observatory. It wasn't until February 11th 2016 that the result was announced at a press conference (which I blogged about here), but the signal itself arrived on 14th September 2015, exactly a decade ago; the name given to the event was GW150914.

A Decade of Gravitational Waves

This is just a quick post to mark the fact that it is now ten years to the day since the first detection of gravitational waves by Advanced LIGO. The acronym LIGO stands for Laser Interferometer Gravitational-wave Observatory. It wasn't until February 11th 2016 that…

Congrats to my brilliant colleague @kimberlykowal.bsky.social for this well-deserved award: “2025 Klumpke-Roberts Award is given to Dr. Kimberly Arcand”
chandra.si.edu/press/25_rel...

NASA discovers ‘clearest sign of life that we’ve ever found on Mars’ Detailed analysis of images of speckled rocks found by NASA’s Perseverance rover has found a “potential biosignature.”

LIFE ON MARS??!!
I know you’re wary of overhyped claims of ET life. & we need to be cautious. As Sagan used to remind us, life should be the hypothesis of last resort. But this is one to watch. Legitimately a “potential biosignature” which demands follow up.
🧪
www.washingtonpost.com/technology/2...

Thanks and good! I’ve heard of one or two LinkedIn posts by astronomers about astro news but I haven’t properly checked.

Bluesky now platform of choice for science community It’s not just you. Survey says: “Twitter sucks now and all the cool kids are moving to Bluesky”…

“Bluesky now platform of choice for science community” by @jenlucpiquant.bsky.social
My question: is that the case for astronomers now? arstechnica.com/science/2025...

Live updates: Tsunami alerts issued for Japan, Alaska, Hawaii and US West Coast after a major earthquake strikes Russia’s remote Far East | CNN Tsunami warnings have been issued for parts of Russia and Japan after a massive 8.7 magnitude earthquake struck Wednesday off Russia’s remote and sparsely populated far eastern coast. Follow for live ...

BREAKING: Tsunami alerts issued for Alaska, Hawaii and all of the US West Coast after a major earthquake struck Russia's remote Far East.

Follow live updates.

Brilliant

What a thumping signal!

This is exciting. The most massive black hole merger seen to date: #GW231123 #gravitationalwaves ligo.org/ligo-virgo-k...

As NASA's budget shrinks, Europe doubles down on Earth science: 'Climate change is the defining challenge of our generation' If NASA must pull back, Europe is ready to step up — and do so with open arms.

As NASA's budget shrinks, Europe doubles down on Earth science

The Biggest-Ever Digital Camera Is This Cosmologist’s Magnum Opus | Quanta Magazine Tony Tyson’s cameras revealed the universe’s dark contents. Now, with the Rubin Observatory’s 3.2-billion-pixel camera, he’s ready to study dark matter and dark energy in unprecedented detail.

I think the only thing more breathtaking than Rubin’s first images was hearing their lengthy backstory from Tony Tyson. If you’re interested in how it took 30 years to create these snapshots, my story below: