For Halloween, our space photo of the day shows a brilliant orange sunset over Kitt Peak Observatory in Arizona.

The Mauve telescope, developed by London-headquartered start-up Blue Skies Space, is the size of a small suitcase and carries ...

Indian scientists claim AstroSat spotted interstellar comet 3I/ATLAS before NASA — sparking debate over data-sharing, ...

The gas giant WASP-18b belongs to a class known as ultra-hot Jupiters — giant, searing, gaseous planets that orbit perilously close to their stars. Researchers used a new technique called ...

The James Webb Space Telescope's latest image shows eight spectacular examples of gravitational lensing, a phenomenon that ...

Black holes have always been considered mysteries in the world of research, with their composition, orbit and purpose largely ...

Explore the universe with multi-messenger astronomy, combining light, gravitational waves, neutrinos, and cosmic rays for a complete view.

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

Ten years ago, scientists heard the universe rumble for the first time. That first discovery of gravitational waves proved a key prediction from Albert Einstein's theory of general relativity and ...

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Elizabeth C. Babcock, the founding director of the Smithsonian American Women's History Museum in Washington, D.C., returns ...

Students at i3 Academy got a closer look at the stars Wednesday as the U.S. Space and Rocket Center brought its mobile ...