NASA has fired back at reality TV star Kim Kardashian after she questioned whether the 1969 moon landing was real. Kardashian made the comments on a new episode of "The Kardashians," which debuted on Hulu on Thursday, Oct. 30. The 45-year-old repeated the ...

Sagittarius B2, a massive molecular cloud near the center of the Milky Way, is densely packed with stars and complex magnetic fields.

NASA's Chandra X-ray Observatory and Hubble Space Telescope confirmed the existence of a companion star orbiting Betelgeuse, the massive red supergiant in Orion. The finding provides insights into the lifecycle of giant stars,