The most accurate astronomical test of electromagnetism to date

Undetected black hole reveals itself by violently shredding a star that got too close

This animation depicts a star undergoing spaghettification as it is sucked into a black hole during a “tidal disturbance event”. Credit: ESO/M. Kornmesser Scientists hope to improve their understanding of…

How Squids and Octopuses Get Their Big Brains

Summary: The neural stem cells of cephalopods act similarly to those of vertebrates during the development of the nervous system. Source: Harvard Cephalopods – which include octopus, squid and their…

‘Overweight’ neutron star challenges black hole theory, astronomers say | black holes

An “overweight” neutron star has been observed by astronomers, who say the mysterious object confuses astronomical theories. The hypermassive star was produced by the merger of two smaller neutron stars.…

Total Lunar Eclipse and Leonid Meteor Shower

The appearance of the Moon during the November 2022 total lunar eclipse. Credit: NASA Science Visualization Studio The Moon turns all red, plus the Leonid meteors! The Leonids will fight…

Hunga Tonga-Hunga Ha’apai eruption released highest volcanic plume on record: ScienceAlert

A spectacular and explosive volcanic eruption in January 2022 produced the highest plume of steam and ash in recorded history. The towering column that surged from Hunga Tonga-Hunga Ha’apai reached…

Astronomers discover the closest black hole to Earth – in our cosmic backyard

Astronomers using the Gemini International Observatory have discovered the closest known black hole to Earth. It is also the first unambiguous detection of a dormant stellar-mass black hole in the…

Watch ovarian cells and other wild experiments launched to the ISS on Sunday

Cow ovary cells are heading to the space station, along with a host of other intriguing science experiments. The last international space station (ISS), courtesy of a Northrop Grumman robot…

Our Galaxy’s Oldest Planetary Debris Discovered in New Study

Artist’s impression of ancient white dwarfs WDJ2147-4035 and WDJ1922+0233 surrounded by orbiting planetary debris, which will accumulate on stars and pollute their atmospheres. WDJ2147-4035 is extremely red and dark, while…

We’ve detected ‘ghost particles’ erupting from the heart of a dust-covered galaxy: ScienceAlert

The role of the active supermassive black holes in high energy production neutrinos from outside the Milky Way seems to have been confirmed. For the second time, physicists have traced…