This NASA/ESA Hubble Space Telescope image features a glittering blue dwarf galaxy called Markarian 178 (Mrk 178). The galaxy ...

On July 1st, 2025, the third interstellar object (ISO) ever detected was seen making its way through our solar system.

The 15th day of the 18th annual Space Telescope Advent Calendar shows a colorful view of a dense cloud of gas and dust, ...

The Hubble Space Telescope has turned its sharp eye toward a ghostly swirl of stars and gas known as the "Lost Galaxy," given ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

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 black ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

The Hubble Space Telescope is a masterwork of engineering and human ingenuity. Hubble is comparable in size and weight to a large school bus, but its contributions to science and astronomy could fill ...

The Hubble Space Telescope will transition to operating with a single gyroscope following repeated interruptions caused by a faltering unit, necessitating a safe mode entry on May 24. This decision, ...

December 15, 2025 - WASHINGTON — The U.S. Postal Service has announced the Priority Mail and Priority Mail Express stamps it will release in 2026. There will be additional stamp subjects to be ...