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Recent Space Stories

A cosmic glitch in gravity may make gravity about 1% weaker across billions of light-years, challenging Einstein’s theory at vast scales.
Planck data hint that gravity could weaken slightly on the universe’s largest scales, but stronger evidence is still needed.
Joseph Shavitupda
Binary asteroid simulations improve with a Hamel integrator that preserves energy, rotation geometry and computational efficiency.
SpaceAstronomers develop a faster way to simulate the complicated motion of binary asteroidsJoseph Shavit
Remnant radio galaxies reveal how quickly giant black hole jets fade, with many distant examples surviving for only millions of years.
SpaceTwelve fading galaxies expose a missing stage in the life of black hole jetsJoseph Shavit
GJ 523b is a dense mega-Earth 2.55 times Earth's radius, challenging ideas about how large rocky planets form.
SpaceAstronomers find an ultra-dense mega-Earth 23 times our planet’s mass but only 2.5 times its sizeJoseph Shavit
Scientists including UWM Professor David Kaplan have determined the identity of a long-period radio transient to be a white dwarf accreting material from its neighboring star, as illustrated in the graphic above.
SpaceRepeating radio signals lead UMW astronomers to a rare binary white dwarf star systemJoshua Shavit
Shackleton crater on the Lunar South Pole. The Chang’e-7 Moon mission will send a hopper toward shadowed south pole craters in search of accessible lunar water ice.
SpaceChina’s Chang’e-7 targets the Moon’s South Pole in search of usable water iceJoseph Shavit
Dark photon dark matter gets new room to hide after plasma simulations overturn powerful early-universe limits.
SpaceCosmic plasma was supposed to rule out dark photons. Simulations say otherwiseJoshua Shavit
An ancient impact depression under the surface regolith layer of Deimos, one of several made clearer thanks to stereoscopics image produced by Sir Brian May, a member of Hera's science team.
SpaceMars moon Deimos may be hiding ancient craters beneath 120 meters of debrisJoseph Shavit
This computer-simulated image shows gas from a tidally shredded star falling into a black hole. Astronomers observed the flare in ultraviolet light using NASA's Galaxy Evolution Explorer.
SpaceRapidly spinning stars could solve a longstanding black hole flare mysteryJoseph Shavit
Microbes surviving on the moon could persist for a week in shaded polar niches, raising contamination concerns for Artemis missions.
SpaceEarth microbes could survive for days on the Moon, NASA findsJoseph Shavit
The fastest star in the Milky Way races around Sagittarius A* at 25,000 km/s and could help astronomers measure its spin.
SpaceMilky Way’s fastest star revolves around the central black hole at 15,500 miles per secondJoseph Shavit
Nuclear asteroid defense simulations show how X-rays from a standoff blast could fracture a 160-meter asteroid.
SpaceA 1-megaton nuclear blast could prevent 97% of a city-killer asteroid from hitting EarthJoseph Shavit
A Swinburne astronomer may have just confirmed one of the quirkiest aspects of quantum mechanics: that seemingly empty space can alter the behaviour of light.
SpaceExtreme X-rays from a magnetar exposes that empty space may not be emptyJoshua Shavit
Artists concept. About 12 billion years ago, a dwarf galaxy known as LKH collided with a young Milky Way and merged with it.
SpaceAstronomers discover a lost galaxy buried in the Milky Way’s ancient star clustersJoseph Shavit
Radiation belt particle diffusion may be mimicked by predictable particle motion that spacecraft cannot fully resolve.
SpaceSpacecraft may be mistaking how energetic particles move around the EarthJoseph Shavit
An AI-generated visualisation of a distant galaxy, containing besides dust, gas and young stars three massive, active black holes (black spheres, not to scale) with bright accretion disks. Other distant galaxies are shown in the background, and few stars in the foreground.
SpaceJWST finds three feeding black holes packed into one early galaxyJoseph Shavit
A new study captures the first clear evidence of ambipolar diffusion, a process that allows stars to form from dense cosmic clouds.
SpaceScientists detect key process that triggers new star formationJoshua Shavit