Hubble's discovery of expanding galaxies confirmed the universe's vastness, laying the foundation for the Big Bang theory and ...

See composite views of the Cartwheel Galaxy captured by the James Webb Space Telescope. The galaxy is 500 million light years ...

Hubble has previously imaged the same nebula, with an image released in 2023 and another shared in 2020. You might also recognize the name of this nebula as it was made world famous when the James ...

The U.S. Postal Service has issued two new stamps featuring iconic images from NASA’s James Webb Space Telescope. The stamps, ...

The James Webb Space Telescope has revolutionized astronomy in just three years. A new project celebrates its impact on the ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

NASA’s James Webb Telescope uncovers GJ 1214 b, a super-Venus exoplanet with a carbon dioxide-heavy atmosphere, challenging ...

Recent astronomical observations by ALMA and JWST have detected emissions from the distant galaxy GHZ2, located over 13 ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

Supernovae are one of the most useful events in all of astronomy. Scientists can directly measure their power, their spin, ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

The striking blue stars of the Leo P dwarf galaxy appear dashed across the lower right corner of this image from NASA's James ...