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Peter Edmonds

@peterdedmonds.bsky.social

Australian-American husband, father, professional nerd, astronomy communicator, dog spoiler, cricket fan. Opinions mine. He/him.

810 Followers  |  238 Following  |  106 Posts  |  Joined: 21.12.2023  |  2.2816

Latest posts by peterdedmonds.bsky.social on Bluesky

I expect it already has!

04.10.2025 22:14 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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

04.10.2025 18:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Preach!

29.09.2025 22:33 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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A Decade of Gravitationalย 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 Gravitationalย 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 thatโ€ฆ

14.09.2025 11:08 โ€” ๐Ÿ‘ 43    ๐Ÿ” 20    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
Chandra Press Room :: 2025 Klumpke-Roberts Award is given to Dr. Kimberly Arcand :: 10 September 2025

Congrats to my brilliant colleague @kimberlykowal.bsky.social for this well-deserved award: โ€œ2025 Klumpke-Roberts Award is given to Dr. Kimberly Arcandโ€
chandra.si.edu/press/25_rel...

12.09.2025 13:41 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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NASA discovers โ€˜clearest sign of life that weโ€™ve ever found on Marsโ€™ Detailed analysis of images of speckled rocks found by NASAโ€™s Perseverance rover has found a โ€œpotential biosignature.โ€

LIFE ON MARS??!!
I know youโ€™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 โ€œpotential biosignatureโ€ which demands follow up.
๐Ÿงช
www.washingtonpost.com/technology/2...

10.09.2025 23:47 โ€” ๐Ÿ‘ 83    ๐Ÿ” 27    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 1

Thanks and good! Iโ€™ve heard of one or two LinkedIn posts by astronomers about astro news but I havenโ€™t properly checked.

30.08.2025 21:15 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Bluesky now platform of choice for science community Itโ€™s not just you. Survey says: โ€œTwitter sucks now and all the cool kids are moving to Blueskyโ€โ€ฆ

โ€œBluesky now platform of choice for science communityโ€ by @jenlucpiquant.bsky.social
My question: is that the case for astronomers now? arstechnica.com/science/2025...

30.08.2025 21:04 โ€” ๐Ÿ‘ 22    ๐Ÿ” 3    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Live updates: Tsunami alerts issued for Japan, Alaska, Hawaii and US West Coast after a major earthquake strikes Russiaโ€™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 Russiaโ€™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.

30.07.2025 01:26 โ€” ๐Ÿ‘ 143    ๐Ÿ” 111    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 9

Brilliant

19.07.2025 01:18 โ€” ๐Ÿ‘ 47    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

What a thumping signal!

15.07.2025 00:23 โ€” ๐Ÿ‘ 10    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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

14.07.2025 16:05 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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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 โ€” and do so with open arms.

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

13.07.2025 06:43 โ€” ๐Ÿ‘ 91    ๐Ÿ” 31    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 1
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The Biggest-Ever Digital Camera Is This Cosmologistโ€™s Magnum Opus | Quanta Magazine Tony Tysonโ€™s cameras revealed the universeโ€™s dark contents. Now, with the Rubin Observatoryโ€™s 3.2-billion-pixel camera, heโ€™s ready to study dark matter and dark energy in unprecedented detail.

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

12.07.2025 01:01 โ€” ๐Ÿ‘ 56    ๐Ÿ” 15    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 2
Transfusing sunlight as the sky grew darker, this exceptional display of noctilucent clouds was captured on July 10, reflected in the calm waters of Vallentuna Lake near Stockholm, Sweden. From the edge of space, about 80 kilometers above Earth's surface, the icy clouds themselves still reflect sunlight, even though the Sun is below the horizon as seen from the ground. Usually spotted at high latitudes in summer months, the night shining clouds have made a strong showing so far during the short northern summer nights. Also known as polar mesopheric clouds they are understood to form as water vapor driven into the cold upper atmosphere condenses on the fine dust particles supplied by disintegrating meteors or volcanic ash.

Transfusing sunlight as the sky grew darker, this exceptional display of noctilucent clouds was captured on July 10, reflected in the calm waters of Vallentuna Lake near Stockholm, Sweden. From the edge of space, about 80 kilometers above Earth's surface, the icy clouds themselves still reflect sunlight, even though the Sun is below the horizon as seen from the ground. Usually spotted at high latitudes in summer months, the night shining clouds have made a strong showing so far during the short northern summer nights. Also known as polar mesopheric clouds they are understood to form as water vapor driven into the cold upper atmosphere condenses on the fine dust particles supplied by disintegrating meteors or volcanic ash.

๐Ÿ”ญ The Veins of Heaven

Image Credit & Copyright: P-M Hedรฉn (Clear Skies, TWAN)

apod.nasa.gov/apod/ap25071...

11.07.2025 08:00 โ€” ๐Ÿ‘ 152    ๐Ÿ” 40    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 2
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Senate spending panel would rescue NSF and NASA science funding Its support for a flat budget is a sign of congressional resistance to drastic cuts Trump has proposed

The Senate appropriations committee has voiced its intent to ignore the request by President Donald Trump to slash the budgets of the National Science Foundation and NASA science programs. scim.ag/4nW7XWi

10.07.2025 20:41 โ€” ๐Ÿ‘ 317    ๐Ÿ” 107    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 18
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US senators poised to reject Trumpโ€™s proposed massive science cuts Committee gives first hint that policymakers might preserve, rather than slash, funding for US National Science Foundation and other agencies.

The Senate Committee on Appropriations gave the first signs Congress will push back on Trump's proposed budget cuts to science and instead keep funding flat, though an unrelated issue (the location of the FBI headquarters) stalled any vote today.

@alexwitze.bsky.social and I report:

10.07.2025 21:47 โ€” ๐Ÿ‘ 87    ๐Ÿ” 39    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 5

This. Is. Brilliant.

10.07.2025 22:44 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Check out this newly-discovered comet zooming along.

08.07.2025 11:52 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
A map of the US with the states the republican senators are from marked in red and states the democratic senators are from marked in blue:
Senator Susan Collins (Republican - Maine)
Senator Mitch McConnell(Republican - Kentucky)
Senator Lisa Murkowski(Republican - Alaska)
Senator Lindsey Graham(Republican - South Carolina)
Senator Jerry Moran(Republican - Kansas)
Senator John Hoeven(Republican - North Dakota)
Senator John Boozman(Republican - Arkansas)
Senator Shelley Moore Capito(Republican - West Virginia)
Senator John Kennedy(Republican - Louisiana)
Senator Cindy Hyde-Smith(Republican - Mississippi)
Senator Bill Hagerty(Republican - Tennessee)
Senator Katie Britt(Republican - Alabama)
Senator Markwayne Mullin(Republican - Oklahoma)
Senator Deb Fischer(Republican - Nebraska)
Senator Mike Rounds(Republican - South Dakota)
Patty Murray(Democrat - Washington)
Richard Durbin(Democrat - Illinois)
Jack Reed(Democrat - Rhode Island)
Jeanne Shaheen(Democrat - New Hampshire)
Jeff Merkley(Democrat - Oregon)
Christopher Coons(Democrat - Delaware)
Brian Schatz(Democrat - Hawaii)
Tammy Baldwin(Democrat - Wisconsin)
Chris Murphy(Democrat - Connecticut)
Chris Van Hollen(Democrat - Maryland)
Martin Heinrich(Democrat - New Mexico)
Gary Peters(Democrat - Michigan)
Kirsten Gillibrand(Democrat - New York)
Jon Ossoff(Democrat - Georgia)

A map of the US with the states the republican senators are from marked in red and states the democratic senators are from marked in blue: Senator Susan Collins (Republican - Maine) Senator Mitch McConnell(Republican - Kentucky) Senator Lisa Murkowski(Republican - Alaska) Senator Lindsey Graham(Republican - South Carolina) Senator Jerry Moran(Republican - Kansas) Senator John Hoeven(Republican - North Dakota) Senator John Boozman(Republican - Arkansas) Senator Shelley Moore Capito(Republican - West Virginia) Senator John Kennedy(Republican - Louisiana) Senator Cindy Hyde-Smith(Republican - Mississippi) Senator Bill Hagerty(Republican - Tennessee) Senator Katie Britt(Republican - Alabama) Senator Markwayne Mullin(Republican - Oklahoma) Senator Deb Fischer(Republican - Nebraska) Senator Mike Rounds(Republican - South Dakota) Patty Murray(Democrat - Washington) Richard Durbin(Democrat - Illinois) Jack Reed(Democrat - Rhode Island) Jeanne Shaheen(Democrat - New Hampshire) Jeff Merkley(Democrat - Oregon) Christopher Coons(Democrat - Delaware) Brian Schatz(Democrat - Hawaii) Tammy Baldwin(Democrat - Wisconsin) Chris Murphy(Democrat - Connecticut) Chris Van Hollen(Democrat - Maryland) Martin Heinrich(Democrat - New Mexico) Gary Peters(Democrat - Michigan) Kirsten Gillibrand(Democrat - New York) Jon Ossoff(Democrat - Georgia)

Are you from one of these states? Then we need your help to save American science!

The Senate Appropriations Committee will be marking up the President's Budget Request for science on Wednesday. People have been saying the proposed cuts "decimated" US science, but that's wrong: they are apocalyptic

07.07.2025 18:23 โ€” ๐Ÿ‘ 376    ๐Ÿ” 323    ๐Ÿ’ฌ 17    ๐Ÿ“Œ 46
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Every living NASA science chief unites in opposition to unprecedentedโ€ฆ The entire past leadership of NASAโ€™s science activities have released a joint statement condemning the proposed 47% cuts proposed to the agencyโ€™s scienceโ€ฆ

Today, *every* living prior leader of NASA's science directorate have released a joint letter condemning the proposed cuts to NASA science. These individuals every administration from Reagan to Biden, and all believe these cuts are insanely destructive: www.planetary.org/press-releas...

07.07.2025 21:11 โ€” ๐Ÿ‘ 1390    ๐Ÿ” 606    ๐Ÿ’ฌ 11    ๐Ÿ“Œ 22

Every living prior Associate Administrator of NASA Science: "we unanimously urge Congress to reject the proposed cuts to NASAโ€™s budget" planetary.s3.amazonaws.com/assets/pdfs/...

07.07.2025 23:26 โ€” ๐Ÿ‘ 24    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
a large, white dish antenna telescope in the distance between the rolling hills. The trees in foreground and background are both golden amber as well as green.

a large, white dish antenna telescope in the distance between the rolling hills. The trees in foreground and background are both golden amber as well as green.

US Friends!

The Green Bank Observatory (GBO) is a vital instrument in the global #RadioAstronomy network (incl. pulsar science), and it is under threat with the proposed funding cuts.

Please take action to keep it open: www.gogreenbankobservatory.org/take-action/

Pls share! ๐Ÿ”ญ๐Ÿ“ก๐Ÿงช

๐Ÿ“ธ GBO/AUI/NSF

06.07.2025 21:08 โ€” ๐Ÿ‘ 118    ๐Ÿ” 77    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 2

If any of my scientist *mutuals* wants to write an op-ed for their newspaper about science but youโ€™re not feeling confident about your writing skills, I will happily ghost co-write the piece with you. Iโ€™m fast, and Iโ€™m pretty good. And we need people making the case for science. ๐Ÿงชโš›๏ธ๐Ÿ”ญ

06.07.2025 17:26 โ€” ๐Ÿ‘ 714    ๐Ÿ” 168    ๐Ÿ’ฌ 16    ๐Ÿ“Œ 14
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Opinion | These scientific advances were โ€˜Made in the U.S.A.โ€™ Will they continue? America has long led in research. Budget cuts could jeopardize that dominance.

โ€œThese scientific advances were โ€˜Made in the U.S.A.โ€™ Will they continue?
America has long led in research. Budget cuts could jeopardize that dominanceโ€, by Bruce Partridge wapo.st/44CVsWM

06.07.2025 18:11 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Collisions in the sky Over the past six decades, astronomy, space science, and the space industry have seemed to be in a kind of virtuous symbiosis. Astronomy has benefited from improvements in technology and has had the o...

My latest โ€œExpert Voicesโ€ piece for Science combines the excitement of the dawn of the Rubin Era with nervousness at the increasing degradation of the Space Environment #astronomy www.science.org/doi/10.1126/...

04.07.2025 12:33 โ€” ๐Ÿ‘ 10    ๐Ÿ” 4    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
A black and white photograph of Henrietta Swan Leavitt. She is wearing a white blouse with a large lace collar that covers her shoulders, upper chest, and neck. Her hair is pulled up and she is looking directly at the camera. She has dark eyes in tis photo, strong eyebrows, and a long, thin nose.

A black and white photograph of Henrietta Swan Leavitt. She is wearing a white blouse with a large lace collar that covers her shoulders, upper chest, and neck. Her hair is pulled up and she is looking directly at the camera. She has dark eyes in tis photo, strong eyebrows, and a long, thin nose.

Astronomer Henrietta Swan Leavitt was born #OTD in 1868. She established the period-luminosity relation for Cepheid variable stars, an essential tool for understanding the scale of our Universe. ๐Ÿงช ๐Ÿ‘ฉโ€๐Ÿ”ฌ ๐Ÿ”ญ

Image: Harvard-Smithsonian Center for Astrophysics

04.07.2025 13:02 โ€” ๐Ÿ‘ 280    ๐Ÿ” 80    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 8
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American science to soon face its largest brain drain in history Over the first half of 2025, the USA has cut science as never before. This disaster for American science is a gift to the rest of the world.

โ€œAmerican science to soon face its largest brain drain in historyโ€ by @startswithabang.bsky.social bigthink.com/starts-with-...

03.07.2025 21:33 โ€” ๐Ÿ‘ 6    ๐Ÿ” 4    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
"The loss would inflict disproportionate damage on the observatoryโ€™s scientific reach, scientists say. Researchers would find it more difficult to distinguish a black hole collision in the distant cosmos from a nearby seismic tremor or anything else that shakes the remaining interferometer. A real gravitational wave likely produces signals in both U.S. detectors within 10 milliseconds, the time it takes the ripple to cover the cross-country distance. Without the ability to compare data from the two instruments, detections would be less sure and their rate would fall at least 25%, Reitze says, and possibly much more."

"The loss would inflict disproportionate damage on the observatoryโ€™s scientific reach, scientists say. Researchers would find it more difficult to distinguish a black hole collision in the distant cosmos from a nearby seismic tremor or anything else that shakes the remaining interferometer. A real gravitational wave likely produces signals in both U.S. detectors within 10 milliseconds, the time it takes the ripple to cover the cross-country distance. Without the ability to compare data from the two instruments, detections would be less sure and their rate would fall at least 25%, Reitze says, and possibly much more."

Science Magazine discusses the potential impact of proposed budget cuts on our operation

www.science.org/content/arti... by Adrian Cho

โ˜„๏ธโš›๏ธ๐Ÿงช๐Ÿ”ญ

02.07.2025 19:22 โ€” ๐Ÿ‘ 28    ๐Ÿ” 10    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 1

Helpful tips if you want people on social media to like and not block you! (Of course you can ignore the tips if you donโ€™t want those things!)

03.07.2025 02:34 โ€” ๐Ÿ‘ 980    ๐Ÿ” 143    ๐Ÿ’ฌ 36    ๐Ÿ“Œ 5

@peterdedmonds is following 20 prominent accounts