Astrophysicists are close to proving the existence of primordial black holes
On November 12, 2025, a ripple passed through the fabric of spacetime and triggered alarms at three gravitational-wave…
Distance in space is an illusion
Andromeda sounds far away because 2.5 million light-years sounds far away. It lands with authority. It feels exact.…
Gamma Cassiopeiae may be hiding a magnetic white dwarf companion
Visible without a telescope, γ Cassiopeiae has stood out for decades because it behaves unlike an ordinary massive…
NASA Webb, Hubble Share Most Comprehensive View of Saturn to Date
NASA’s James Webb Space Telescope and Hubble Space Telescope have teamed up to capture new views of Saturn,…
Expanding catalog of black hole collisions is rewriting the history of the universe
Between May 2023 and January 2024, a global network of gravitational-wave detectors picked up 128 new cosmic signals,…
Scientists are rethinking how young galaxies formed their magnetic fields
Magnetic fields that stretch across thousands of light-years should take a very long time to organize. Standard dynamo…
Astronomers have discovered new information about the Sun’s origin
ⓘ Braňo – Unsplash An artist’s illustration showing the Sun. Astronomers have created a catalog of more than…
Newborn magnetar offers rare evidence of Einstein’s relativity in a stellar explosion
The light did not fade the way it was supposed to. After blazing into view about a billion…
Astronomers Just Found a Monster Cosmic Explosion in the Last Place They Expected
Most gamma-ray bursts—the brightest, most powerful explosions in the universe—are tracked back to the deaths of massive stars.…
NASA Discovers Crash of Extreme Stars in Unexpected Site
A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy…
Scientists develop a new way to measure the expansion rate of the universe
For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe…
Young ‘Sun’ Caught Blowing Bubbles by NASA’s Chandra
For the first time, a much younger version of the Sun has been caught red-handed blowing bubbles in…