See composites created using James Webb Space Telescope and Chandra X-ray Observatory imagery. A pair of galaxies, a nebula, ...

Using NASA's James Webb Space Telescope, astronomers uncovered a mysterious feature within the remnant, nicknamed the "Green ...

During its 35 years of orbiting the Earth, the Hubble Space Telescope has transmitted endless streams of magnificent images, confirmed the existence of "dark matter," and helped track a vagabond ...

NASA's SPHEREx space observatory has spent the last six weeks undergoing checkouts, calibrations, and other activities to ...

Space.com is revisiting some of the most scientifically significant — and awe-inspiring — images of the universe captured through its lens. Related: Hubble Space Telescope: Pictures ...