Alien invasion stories are among the earliest science fiction in the Western canon—they not only explore the strange and unknown but also heighten the stakes by bringing danger inside human ...

Astronomers have found what could become the first target for a crucial test of NASA’s upcoming Nancy Grace Roman Space Telescope, a soon-to-launch observatory that serves as a pathfinder mission for ...

(KTLA) — NASA on Wednesday released new images and data of Comet 3I/ATLAS, the rare interstellar object that set off weeks of speculation — and a full-blown online debate — over whether it could be an ...

WASHINGTON — NASA released fresh images on Wednesday of the interstellar object called 3I/ATLAS that astronomers have determined is a comet probably even older than our solar system, as space agency ...