adammc.space - Profile | ThreadSky | a Reddit-style client for Bluesky

Look at the size of this! The LOFAR radio array has found a huge pair of jets coming from a quasar 12 billion years ago 🔭🧪 www.earth.com/news/largest...

submitted 17 hours ago • 8 comments

Amazing video of the Sun’s cronoa, thanks to adaptive optics. This works by measuring the turbulence in the atmosphere and reshaping the telescope’s mirror in real time to compensate. This is the first time this has been used on the Solar corona 🧪🔭 www.space.com/astronomy/su...

submitted 21 hours ago • 2 comments

MAVEN has observed argon atoms being knocked out of Mars’ atmosphere by the solar wind, in a process called “sputtering” that explains how Mars lost so much of its atmosphere and its liquid water 🔭🧪 science.nasa.gov/missions/mav...

submitted 1 day ago • 1 comment

Not only will hypervelocity stars leave the galaxy, they might end up reaching other galaxies. Research suggests hypervelocity stars from Andromeda are already here in the Milky Way 🔭🧪

submitted 1 day ago • 0 comments

Different types of ice found on Europa’s surface might mean water is erupting from below, partly driven by tidal heating from Jupiter’s gravity 🧪🔭 www.universetoday.com/articles/web...

submitted 1 day ago • 4 comments

Always love a black hole tearing apart a star. Here’s one in a galaxy that’s merging with another. Mergers are thought to trigger tidal disruption events like this, but this is only the second one to actually be seen in a merger 🧪🔭 www.space.com/astronomy/as...

submitted 2 days ago • 3 comments

Surprise! Neutrinos without gamma rays! (Well, some gamma rays but less than usual.) The Squid galaxy seems to be producing neutrinos in an unexpected way 🧪🔭 scitechdaily.com/the-squid-ga...

submitted 2 days ago • 3 comments

Astronomers combined data from multiple surveys and found a whole bunch of new quasars (actively feeding supermassive black holes) in the early universe 🧪🔭 phys.org/news/2025-05...

submitted 3 days ago • 0 comments

Radio emissions from long-period radio transients change more slowly than normal radio variations, and we don’t really know what causes that. For the first time, observations of one transient show that it also varies in X-rays at the same time, ruling out some options but not solving the mystery 🔭🧪

submitted 3 days ago • 1 comment

Some stars are travelling so fast they are going to leave the galaxy. They're called hypervelocity stars and their incredible speeds are caused by encounters with supermassive black holes 🔭🧪 three-alpha.space/p/theres-no-...

submitted 5 days ago • 2 comments

The Trump administration’s definition of greatness is to stop being part of everything good humanity is trying to do

submitted 6 days ago • 0 comments

When will I learn that the thought “I’m going to forget to do that later” should be immediately followed by me doing that? (Brought to you by me having to bring in the washing from the line in the dark at nearly midnight)

submitted 7 days ago • 0 comments

A pulsar has been found orbiting extremely close to a helium star. The two likely went through a “common envelope” phase, when the pulsar was inside the star, throwing out the star’s outer hydrogen layers and leaving behind the helium star that’s there today 🧪🔭 www.space.com/astronomy/st...

submitted 7 days ago • 3 comments

Earth’s core might be leaking?! Rocks in Canada contain large amounts of certain isotopes which might have come from the planet’s core 🔭🧪 www.nature.com/articles/d41...

submitted 8 days ago • 1 comment

A system that shouldn’t exist: a planet in a retrograde orbit that passes between two stars. New measurements suggest it either started out in orbit around both stars and moved as the stars aged, or it actually formed from material ejected by one star as it reached old age 🔭🧪

submitted 8 days ago • 0 comments

Feeding supermassive black holes produce enough radiation to put an end to star formation in their host galaxies, in a process called “quenching”. For the first time a SMBH has been found quenching star formation in a neighbouring galaxy 🔭🧪 www.eso.org/public/news/...

submitted 9 days ago • 0 comments

The Einstein Probe has detected a fast-evolving X-ray transient (FEXT) which lasted over a month. The origin of FEXTs is unknown, but these observations suggest there was a relativistic jet which could have come from a supernova, a magnetar, or a black hole 🔭🧪 phys.org/news/2025-05...

submitted 9 days ago • 0 comments

"BHaHAHA, the BlackHoles@Home Apparent Horizon Algorithm" 🔭 ui.adsabs.harvard.edu/abs/2025arXi...

submitted 13 days ago • 0 comments

Apparently Jupiter used to be twice as large as it is today (based on the orbits of two of its closest moons). It had the same mass and shrank over time as it cooled 🧪🔭 www.space.com/astronomy/ju...

submitted 13 days ago • 2 comments

Not water: it’s a mystery where streaks on the Martian surface come from, but a new paper rules out water as a cause and narrows down the other options 🔭🧪 www.universetoday.com/articles/pla...

submitted 14 days ago • 1 comment

Dwarf galaxies orbit larger galaxies, like the Milky Way, and they often line up with each other. New simulations suggest that’s because of the influence of the filaments that helped the larger galaxy grow when the Universe was young 🧪🔭 www.space.com/astronomy/da...

submitted 14 days ago • 0 comments

A recent amazing photo courtesy of the Perseverence rover, Mars’ tiny moon Deimos shining in the pre-dawn sky. NASA combined 16 long exposure photos to produce the final image 🧪🔭 www.nasa.gov/image-articl...

submitted 15 days ago • 1 comment

We may have already caused enough warming to doom the ice caps and cause several metres of sea level rise. We not only need to stop new emissions, but we need to start actively removing carbon from the atmosphere NOW 🧪 www.washingtonpost.com/climate-envi...

submitted 15 days ago • 2 comments

The near side of the Moon is hotter than the far side, probably because it contains more radioactive elements whch heat it more. (That’s also one of the things that makes the Earth hot inside.) 🧪🔭 www.newscientist.com/article/2480...

submitted 16 days ago • 1 comment

Reanalysis of 30 year old data from the Magellan mission suggests Venus may have ongoing tectonic activity. Circular features on the surface called coronae seem to sit on top of hot plumes rising up in the mantle 🧪🔭 www.nasa.gov/missions/mag...

submitted 16 days ago • 1 comment

Was just outside and happened to look up and see the International Space Station. Probably the fifth or sixth time I’ve seen it by accident. It’s the bright one (obviously) 🔭

submitted 17 days ago • 3 comments

Cool! Just spotted that my PhD thesis is now online, detailing my work on SuperWASP Variable Stars and @blackholehunters.bsky.social. "Citizen Science Classification of Long-Baseline Stellar Variability in the SuperWASP All-Sky Survey" 🧪🔭 oro.open.ac.uk/104140/

submitted 17 days ago • 0 comments

Love this photo of a runaway star smashing through a nebula 🧪🔭 three-alpha.space/p/a-massive-...

submitted 18 days ago • 0 comments

Voyager 1’s primary thrusters are working again after being broken for 20 years! The craft has been relying solely on its backup thrusters to keep the spacecraft’s antenna pointing at Earth, but they were at risk of clogging from over-use 🧪🔭 edition.cnn.com/2025/05/14/s...

submitted 21 days ago • 4 comments

Everything decays if you wait long enough, but it turns out we don’t need to wait nearly as long as we thought! (But it’s still an incomprehensibly long time) 🧪🔭 phys.org/news/2025-05...

submitted 21 days ago • 4 comments

Wow! Just look at this photo of the Milky Way taken by astronaut Don Pettit on the ISS. Taken with a homemade tracker to counteract the orbital motion. It kind of looks like an aurora, but that's actually just clouds just before dawn. The purple colour comes from nitrogen scattering sunlight. 🧪🔭

submitted 22 days ago • 52 comments

Venus’ crust is thinner than expected, given the planet’s lack of plate tectonics. It looks as though the crust can only get so thick before the lowest parts break off and melt into the mantle 🧪🔭 science.nasa.gov/science-rese...

submitted 23 days ago • 3 comments

For the first time, a tidal disruption event (where a supermassive black hole tears apart a star) has been detected outside the centre of its host galaxy. This suggests that galaxy has two supermasive black holes, with the second likely being left over from a merger with another galaxy 🧪🔭

submitted 24 days ago • 8 comments

Using radio observations, astronomers have mapped the accretion disk around a newly forming massive star for the first time. Previously it wasn’t known if a stable accretion disk could exist during the formation of such massive stars, because of the large mass infall rate required 🧪🔭

submitted 24 days ago • 0 comments

When I first saw Arp 184 I thought it was a small galaxy. It's actually as big as the Milky Way and Andromeda combined. The latest roundup of the week's astronomy news in Three Alpha is up 🧪🔭 three-alpha.space/p/the-strang...

submitted 25 days ago • 2 comments

For the first time, asteroseismology has been used to measure the age and radius of a star which is cooler than the Sun. It’s over 10 billion years old (for comparison the Sun is 4.6 billion years old) and the radius is smaller than expected 🧪🔭 phys.org/news/2025-05...

submitted 26 days ago • 2 comments

The asteroid Vesta was thought to be a protoplanet because measurements suggested it had a separate core, mantle, and crust. New analysis suggests it’s actually a chunk of a different planet, blown off in a collision in the early solar system 🧪🔭 www.space.com/astronomy/as...

submitted 27 days ago • 1 comment

If you were deliberately trying to find ways to make the US less prestigious, absolutely wrecking NASA would probably be near the top of the list 🧪🔭 time.com/7283206/what...

submitted 27 days ago • 1 comment

Brown dwarfs, which are less massive than stars and more massive than planets, have weather in their atmospheres and it has been measured for a nearby brown dwarf using JWST 🧪🔭 www.universetoday.com/articles/web...

submitted 27 days ago • 1 comment

New polarisation measurements from IXPE show that supermassive black hole jets produce X-rays by scattering of light by electrons (Compton scattering), solving the mystery of whether it is electrons or protons doing the scattering 🔭🧪 www.nasa.gov/centers-and-...

submitted 28 days ago • 0 comments

It seems like everyone is going to the Moon! Japan’s Resilience lander has arrived in orbit, ready to attempt a landing next month. The lander is carrying a handful of scientific experiments and a rover, named Tenacious 🔭🧪 www.space.com/astronomy/mo...

submitted 28 days ago • 1 comment

Quasi-periodic eruptions might be due to objects smashing through the accretion disk of a supermassive black hole. New X-ray measurements of the brightest known QPE suggest each collision sends roughly the mass of Jupiter bursting out of the disk at 15% of the speed of light 🧪🔭

submitted 28 days ago • 2 comments