The universe is expanding, but astronomers still cannot agree on exactly how fast. That mismatch, known as the Hubble tension, has turned a seemingly simple number into one of the biggest headaches in ...

Greetings, earthlings! I’m Jackie Wattles, and I’m thrilled to be a new name bringing awe to your inbox. I’ve covered space exploration for nearly a decade at CNN, and there has never been a more ...

NASA has released a stunning new map of the cosmos, one that the agency says could help scientists solve some of the universe’s longstanding mysteries. Taken using the agency’s SPHEREx space telescope ...

NASA’s SPHEREx telescope has combined 100+ infrared maps into the universe’s first all-sky cosmic atlas, revealing galaxies, interstellar clouds, and cosmic inflation patterns never seen before.

An illustration of a young solar system immersed in high-energy cosmic rays from a nearby supernova. Unlike considering only direct injection of supernova ejecta, this process naturally explains key ...