Gravitational waves may be responsible for dark matter in the universe
Dark matter is thought to exist everywhere, wrapping around galaxies and helping to shape the largest things in…
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.…
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,…
NASA-JAXA’s XRISM Telescope Clocks Hot Wind of Galaxy M82
For the first time, astronomers have directly measured the speed of superheated gas billowing from a cauldron of…
NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion
A quarter-century after its first observations of the full Crab Nebula, NASA’s Hubble Space Telescope has taken a…
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…
NASA’s Hubble Unexpectedly Catches Comet Breaking Up
In a happy twist of fate, NASA’s Hubble Space Telescope just witnessed a comet in the act of…
How Big Can a Planet Get Without Becoming a Star? JWST Data Solves 20-Year Mystery of Rule Breaking Exoplanets
One way gas giants form is through core accretion, where solid cores gradually grow in a disk by…
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.…
Astronomers have discovered a collision between two neutron stars in a small galaxy
ⓘ Mikkehouse – Pixabay An artist’s illustration showing a neutron star. Recently, astronomers have discovered a collision between…
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…