Mar 11, 2026 · Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements. Every star has its own life cycle, ranging from a few million to trillions of years, …

For decades, astronomers have been captivated by yellow hypergiants, a rare and enigmatic class of massive stars known for their...

Mar 11, 2026 · The universe’s stars range in brightness, size, color, and behavior. Some types change into others very quickly, while others stay relatively unchanged over trillions of years.

Mar 31, 2025 · In this mosaic image stretching 340 light-years across, NASA's James Webb Space Telescope’s Near-Infrared Camera (NIRCam) displays the Tarantula Nebula... This landscape of …

Apr 6, 2026 · Four astronauts aboard the agency’s Artemis II test flight around the Moon made history at 1:56 p.m. EDT on Monday, April 6, when they reached 248,655 miles from Earth—surpassing the …

6 days ago · Scientists have found that young stellar cousins of our Sun are calming down and dimming more quickly in their X-ray output than previously thought, according to a new study using NASA’s …

Mar 9, 2026 · Our solar system, with its eight planets orbiting a solitary Sun, feels familiar because it's where we live. But in the galaxy at large, planetary systems like ours are decidedly in the minority. …

Feb 3, 2026 · NASA has always told its story through its images, a few of which have become icons of human history. A view of the near side of the Moon, the side we always see from Earth, as seen from …

Sep 14, 2023 · NASA's Wide-field Infrared Survey Explorer (WISE) mission captured this mosaic of the Heart and Soul nebulae. Located about 6,000 light-years... This image combines data from four …

6 days ago · Astronomers used NASA’s James Webb Space Telescope to examine 29 Cygni b, an object about 15 times as massive as Jupiter orbiting a nearby star. They found multiple lines of …