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Posts by Andrew Chael

Cover of report "Mission Aborted: how NASA illegally implemented the president's budget request without congressional approval. Minority staff report, prepared by members of the committee on science, space, and technology, us house of representatives, April 2026

Cover of report "Mission Aborted: how NASA illegally implemented the president's budget request without congressional approval. Minority staff report, prepared by members of the committee on science, space, and technology, us house of representatives, April 2026

This report came out today by minority staff of the House science committee on how three NASA missions were aborted due to NASA illegally following the FY26 president's budget request instead of congressionally approved budget. Very important reading. 🔭🧪 democrats-science.house.gov/staff-report...

3 days ago 1353 599 13 29
The slowly fading crescent of the Moon with crescent Earth behind it.

The slowly fading crescent of the Moon with crescent Earth behind it.

"See you on the other side."

2 weeks ago 183 44 1 11
Before going to sleep on flight day 5, the Artemis II crew snapped one more photo of the Moon, as it drew close in the window of the Orion spacecraft. Orion and the four humans aboard entered the lunar sphere of influence at 12:37 a.m. EDT on April 6, at the tail end of the fifth day of their mission. That marked the point at which the Moon's gravity had a stronger pull on the spacecraft than the Earth's. Artemis II's closet approach to the Moon will come on flight day 6, as they swing around the far side before beginning their journey back to Earth. About an hour after entering the lunar sphere of influence, Artemis II Mission Specialist Christina Koch said, "We are now falling to the Moon rather than rising away from Earth. It is an amazing milestone!"

Before going to sleep on flight day 5, the Artemis II crew snapped one more photo of the Moon, as it drew close in the window of the Orion spacecraft. Orion and the four humans aboard entered the lunar sphere of influence at 12:37 a.m. EDT on April 6, at the tail end of the fifth day of their mission. That marked the point at which the Moon's gravity had a stronger pull on the spacecraft than the Earth's. Artemis II's closet approach to the Moon will come on flight day 6, as they swing around the far side before beginning their journey back to Earth. About an hour after entering the lunar sphere of influence, Artemis II Mission Specialist Christina Koch said, "We are now falling to the Moon rather than rising away from Earth. It is an amazing milestone!"

This photo by Artemis II is entitled Goodnight Moon and was taken at the end of FD5 after Artemis II had entered the lunar sphere of influence, and what a quote by Christina Koch to go with it.

"We are now falling to the Moon rather than rising away from Earth. It is an amazing milestone!"

2 weeks ago 77 21 1 1

This open threat of war crimes is pure sociopathic bloodlust and sadism but it's also another sign that he's failing and that he's in a fury about it.

2 weeks ago 3832 842 145 72
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Initial set of charts tracking some of the massive cuts from NASA's FY 2027 budget proposal are now posted at www.planetary.org/charts?imgke...

2 weeks ago 30 16 2 1

While reading through the more detailed PBR that Isaacman strongly supports, it becomes incredibly clear why.

This is the plan that lets the cancel every NASA owned project related to exploration, and make it all science as a service from commercial companies.

2 weeks ago 44 17 3 0

good planet imo

2 weeks ago 5 0 0 0
Picture taken from inside Integrity at the window looking at Earth.

Picture taken from inside Integrity at the window looking at Earth.

A full picture taken from Integrity looking at the half-disc of Earth surrounded by space.

A full picture taken from Integrity looking at the half-disc of Earth surrounded by space.

Holy shit these two photos from Artemis II that were shared just a bit ago.

2 weeks ago 6262 1744 9 184

This is so, so well-articulated.

2 weeks ago 10717 3901 98 353
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BREAKING: Trump Administration Orders Dismantling of the U.S. Forest Service The headquarters is going to Utah. Every regional office is being shuttered. The research program is being destroyed.

the trump administration is selling this country wholesale to rapacious, extractive industries that will destroy our collective resources for private profit morethanjustparks.substack.com/p/breaking-t...

2 weeks ago 7416 3368 208 2

Nasa PR and education outreach were hit VERY hard in last years layoffs, just slashed

2 weeks ago 437 104 4 1

some lefties turn into weird austerity hawks when it comes to space and like do you actually think it would be invested in social services? come on now

2 weeks ago 861 92 37 9

I didn't quite realize how much I missed the idea of a rocket launch that was:

1) wasn't being broadcast like a tech convention product demo
2) had actual stakes & objectives

2 weeks ago 35 6 1 1

it’s nice to see a rocket go up to space that isn’t directly associated with some horrible billionaire piglet

2 weeks ago 1440 237 19 6

It’s kind of amazing to consider how much more inspiring a moon launch could have been if we had not started a new war just weeks before it. There are lots of other ways everything is stupid right now, but I just need to take a second to shake my damn head over that one.

2 weeks ago 108 13 5 0

I don’t think anyone else in this hotel bar has any idea there is a moon launch happening right now. Human spaceflight really has only one purpose and that’s inspiring people to accomplish formerly impossible things. We are not doing this right if no one knows about it.

2 weeks ago 127 25 6 2

I do think that those lawyers and law professors who tried to fabricate a historical or legal case against birthright citizenship should be socially and professionally ostracized for their shocking cynicism and intellectual dishonesty as well as for their bald hostility to pluralist American values.

2 weeks ago 2542 609 34 0
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was just reminded that tomorrow is april fool’s day and especially this year can we just… not, please

2 weeks ago 4620 1048 64 143

Yet this is life.

3 weeks ago 239 88 4 10

🤢

1 month ago 0 0 0 0

LET’S GO SPACE QUEERS OMGGGGG

1 month ago 472 54 0 0

They're destroying American scientific leadership on purpose

1 month ago 80 44 6 0
A basin exit plot, showing chaotic structure

A basin exit plot, showing chaotic structure

Title/author list/abstract of the paper. The abstract reads:

The photon ring of a Kerr black hole decomposes into a self-similar hierarchy of subrings. Here, we show that this self-similar structure persists in phase space. Moreover, near the photon shell of bound photon orbits, dynamics are controlled by a Lyapunov exponent γ, whose role we highlight by computing the first-return map for light rays close to an unstably bound orbit. Despite an exponential e^γ sensitivity to initial conditions, nearly bound rays do not exhibit chaotic behavior. However, as the background spacetime is deformed away from the Kerr geometry, chaos sets in, with its first onset most visible near strongly resonant bound orbits in the photon shell. We display two animations: one illustrating the emergence of chaos near the photon shell, which results in a fractal phase-space structure, and another exhibiting how this chaotic, fractal, self-similar structure is encoded in the first-return map.

Title/author list/abstract of the paper. The abstract reads: The photon ring of a Kerr black hole decomposes into a self-similar hierarchy of subrings. Here, we show that this self-similar structure persists in phase space. Moreover, near the photon shell of bound photon orbits, dynamics are controlled by a Lyapunov exponent γ, whose role we highlight by computing the first-return map for light rays close to an unstably bound orbit. Despite an exponential e^γ sensitivity to initial conditions, nearly bound rays do not exhibit chaotic behavior. However, as the background spacetime is deformed away from the Kerr geometry, chaos sets in, with its first onset most visible near strongly resonant bound orbits in the photon shell. We display two animations: one illustrating the emergence of chaos near the photon shell, which results in a fractal phase-space structure, and another exhibiting how this chaotic, fractal, self-similar structure is encoded in the first-return map.

In my head, the title of this paper is "Chaos! At the light ring."

arxiv.org/abs/2603.08790

Chaos and fractals of the black hole photon ring
Roman Berens, Peter Galison, Trevor Gravely, Alexandru Lupsasca, Leo C. Stein

🧪⚛️🧮🔭

1 month ago 53 8 2 1

The gutting of NASA Goddard has had a devastating effect on high energy astrophysics. The AXIS probe mission proposal was rejected without review. (The Goddard X-ray mirror lab was significantly impacted by shutdowns and pressured retirements, against the congress approved budget for NASA.)

1 month ago 116 53 4 3
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1 month ago 0 0 0 0
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Listen up liberal,

1 month ago 911 67 18 3

the war is unpopular but it's also illegal but it also doesn't serve any purpose but it also undermines diplomacy but it also is set to produce the opposite outcome as intended but it also already has hundreds dead and threatens more but it also will not make anything better for anyone but it also

1 month ago 4038 931 12 0

Fuck Trump. Fuck the puppeteers behind him. Fuck the GOP, especially congressional Republicans and quisling Democrats, who enabled him. Fuck the people who voted for this, and fuck the media for never reporting on him realistically.

Fuck them all, for they have truly fucked us and the world.

1 month ago 2291 577 36 17

1. kill khamenei and bomb everyone

2. ?????

3. liberation and peace for everyone forever and ever

great glad we’ve got that all figured out

1 month ago 609 88 22 3

It bothers me how nobody seems to understand that this, trans people getting booted out of the military without their contractually obligated benefits, etc. is ultimately about if the promises of the government are worth a goddamn thing as long as the Republican Party exists.

1 month ago 1236 353 15 18