eROSITA's Second Data Release Catalog Delivering the Most Comprehensive High-Energy Census of the Cosmos to Date

The eROSITA Consortium has issued the survey's second data release (DR2), nearly doubling the previously known eROSITA X-ray sources to two million.

Unexplained Gamma-Rays from the Galactic Center Could be from Self-Annihilating Dark Matter

Over a decade ago, the Fermi satellite detected an excess of gamma-ray emissions in the galactic center. Potential explanations included Sgr. A*, the Milky Way's SMBH, pulsars, and even self-annihilating dark matter. There's no clear answer yet, since the region is so difficult to observe. But recent research shows that dark matter can't be ruled out.

Ancient Swedish Goths Had Surprisingly Accurate Calendars

Ancient Swedish pagans had surprisingly accurate calendars and the ability to measure phases of the Moon to an incredible precision.

New Revelations About the Origin of Interstellar Comet 3I/ATLAS

UK astronomers have uncovered new clues about the origin of 3I/Atlas – only the third known object from beyond our Solar System ever spotted in our cosmic neighbourhood.

New Research Says that Early Galaxies Could be Sending us Neutrinos

Those "Little Red Dots" discovered by the James Webb Space Telescope, galaxies that existed during the very early Universe, could be sending neutrino particles that are reaching us today.

Astronomers Unmask a Supernova Impostor

Astronomers observe faint light signals from stellar objects, study it intently, and try to understand what's behind these signals. In one case, the signals they detected masqueraded as an imminent supernova explosion. But more observations revealed a different reality.

Next-Gen Gravitational Wave Detectors Could Spot the First Black Holes

A few hundred million years after the Big Bang, the first stars ignited - literally the “let there be light” moment for the universe. Now known to astronomers as Population III, or Pop III, stars, these giants were very different from the stars we know today. They were formed out of pristine hydrogen and helium, with almost no “metal” (i.e. other elements) holding them back. They were also huge, growing to tens to hundreds of times larger than the Sun. And they died young, in many cases collapsing into the universe’s earliest black holes. Some of those black holes even partnered up, eventually colliding into one another and creating gravitational waves that, if we have instruments sensitive enough, we could potentially detect. A new study led by astrophysicist N.V. Krishnendu of the University of Birmingham and their colleagues shows just how much we can learn about them with the new suite of gravitational detectors about to come online.