Brian Williams

I'm convinced AI is our generation's radium - a discovery with genuinely useful applications in specific, controlled circumstances that we stupidly put in everything from kid's toys to toothpaste until we realised the harm far too late where future generations will ask if we were out of our minds.

It moves! We can watch as the Kepler supernova remnant changes over a quarter of century in X-rays from Chandra. #aas247
chandra.si.edu/photo/2026/k...

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

This artist's impression depicts the supermassive black hole of NGC 3783. A gold-to-brown swirling disc surrounds a black ellipse-shaped area that looks like a hole in space. On the right, two very bright white spots atop the disc are connected by an arch of shining lines. From the blazing spot in the foreground, white-to-orange straight lines erupt like jets, reaching the top of the image.

🆕 XMM-Newton & XRISM observed an extraordinary blast from a supermassive black hole 💥

They spotted a bright X-ray flare erupting from the gigantic black hole lurking within NGC 3783. As it faded away, fast winds emerged, raging at speeds of 60 000 km per second 👉 www.esa.int/Science_Expl... 🔭 🧪

Good on Penn Jillette. Having to come to terms with your entire political identity and philosophy being wrong is not easy and most people could never do it.

faint spectral lines of Chlorine and potassium are visible in the X-ray spectrum of Cassiopeia A, as seen by XRISM

Cl and K lines are clearly detected (>5-sigma) in the spectra shown below, taken from our paper published today in Nature Astronomy

NASA-JAXA XRISM Finds Elemental Bounty in Supernova Remnant - NASA Science For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using data from the Japan-led XRISM

XRISM has made the first ever X-ray detections of chlorine and potassium in the remains of a supernova, showing that these elements critical for the formation of life are indeed spread throughout the cosmos by exploding stars

science.nasa.gov/missions/xri...

Footage from Bradenton, Florida of Starship launch

heasarc.gsfc.nasa.gov/docs/xrism/p...

The XRISM cycle 2 approved target list has been released

As usual with this issue, Harris is calling for a compromise that already exists. Every sporting body has standards for how long athletes must be on hormones before they can compete as women.

The problem isn’t that we’re ignoring ‘reasonable concerns,’ the problem is that republicans are lying.

Artist’s impression of the powerful winds blowing from the accretion disc in X-ray-bright system GX13+1. The focus of the image is a blue-to-pink disc of swirling material, circling around a sparkling white ball in the centre. Bright rays primarily white to pink rise towards the top of the image, like a wind blowing off the circling matter. To the left of the picture, a yellow to orange ball is partially visible, representing a star. The star appears to be feeding the disc via a stream of orangish matter that connects the two.

Cosmic wind of change

#XRISM makes an unexpected discovery: winds from neutron star discs are quite different from those around supermassive black holes.

The discovery could reshape our understanding of the most extreme environments in the Universe 👉 www.esa.int/Science_Expl... 🔭 🧪

the person behind this unhinged, anti-factual editorial is set to decide coverage at one of the nation’s major news networks

New XRISM paper published in Nature reveals that high-speed winds from supermassive black holes are clumpier and more energetic than expected, helping us learn how black holes and galaxies coevolved. Plus the spectrum is amazing 😲😲😲

www.xrism.jaxa.jp/en/topics/sc...
www.nature.com/articles/s41...

New life phase entered

*this guy* 🙄🙄🙄

The AO for XRISM Cycle 2 is now open; deadline May 15th. This is a *6-month* cycle. Proposals should assume gate valve closed. The team continues to evaluate the feasibility of another operation to open the GV. Proposals for lab astrophysics are also solicited.

nspires.nasaprs.com/external/sol...

Text

Correct. If the birthdate field contains corrupt or mismatched data, it defaults to 1875-05-20, which serves as a flag. May 20, 1875, is the day the international standards and metrics treaty was signed. Everything is a conspiracy when you don’t know how anything works.

Damn. I hope she rests in peace 😥❤️

New backdrop delivered just in time for AAS. Stop by the XRISM booth next week, and come to our Special Session Monday morning at 10:00-11:30 to see new results!

Hello world. I'm on here now.