The Hubble Space Telescope captured the ​​colorful, wispy clouds near the Tarantula Nebula, one of the most luminous and ...

When we think of astrophotography, usually big telescopes on robotic mounts that cost thousands of dollars come to mind. But ...

Stars form in regions of space known as stellar nurseries, where high concentrations of gas and dust coalesce to form a baby ...

Two bands of radiation called the Van Allen belts encircle Earth. After a May 2024 solar superstorm, two more showed up between those belts.

NASA’s James Webb Space Telescope has captured a phenomenon for the very first time. The bright red streaks at top left of this image are aligned protostar outflows – jets of gas from newborn stars ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

In the Milky Way's central bulge, about 24,000 light-years from Earth, a peculiar pair of objects appears to be hurtling ...

Today: On Feb. 18, 1930, Clyde Tombaugh discovered Pluto, at that time classified as the ninth planet.

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 ...

Tim Limmer has been gazing at the stars with a telescope since he was a child growing up in St. Louis. Now, he not only does ...

NASA's latest safety report raises concerns over the Artemis program, citing technical and budgetary risks, as well as health ...

Possibly one of the best-known constellations in the northern sky, Ursa Major—or the Great Bear—contains an asterism of seven ...