A binary star breaks the 100 TeV barrier, rewrites cosmic particle limits
For years, scientists have searched for the sources of the most energetic particles in our galaxy, cosmic rays…
Hidden rules found in Einstein’s spacetime that shape cosmic evolution
Spacetime isn’t supposed to be predictable, but scientists may have just found the rules it cannot break. In…
Astronomers May Have Found Remnants of a Lost Galaxy Named “Loki” Hidden in the Milky Way
Some of the oldest stars near Earth may not belong to the Milky Way as astronomers once assumed.…
Asteroid named for Pope Leo XIII highlights Vatican’s longstanding support of science: ‘Faith and science go together’
Pope Leo XIV looks through the main telescope of the Vatican Observatory in Castel Gandolfo, Italy, alongside U.S.…
Horizontal transport as a source of disequilibrium chemistry on the nightside of a hot exoplanet
Showman, A. P., Tan, X. & Parmentier, V. Atmospheric dynamics of hot giant planets and brown dwarfs. Space…
The Universe Is Expanding Too Fast and Scientists Can’t Explain Why
Artist’s interpretation of the cosmic distance ladder — a succession of overlapping methods used to measure distances across…
Mars has air, but almost none of it can keep you alive
For all the drama around getting to Mars, the harder question starts after landing. A person can step…
Webb Space Telescope Uncovers Unexpected Ice Clouds on a Jupiter-Like World
Artist’s impression of the planet Epsilon Indi Ab, with water clouds atop its ammonia-dominated atmosphere. Credit: E. C.…
Black hole GW190521 may be a wormhole from another universe
For just one-tenth of a second in May 2019, the universe delivered a signal that did not fit…
The wide-brimmed Sombrero galaxy is revealed in all its splendor
CAPE CANAVERAL, Fla. (AP) — The Sombrero galaxy and its glowing halo of stars have never looked this…
Water D/H in 3I/ATLAS as a probe of formation conditions in another planetary system
van Dishoeck, E. F., Herbst, E. & Neufeld, D. A. Interstellar water chemistry: from laboratory to observations. Chem.…
Edge of the Milky Way’s star-forming disc finally mapped
image: ©m-gucci | iStock Astronomers have identified the outer boundary of the star-forming region in the Milky Way…