Hubble’s 35-year journey showcases humanity’s boldest space achievements, capturing everything from new stars forming to ancient galaxies. Its discoveries revolutionized our understanding of black ...

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April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

For 35 years, the Hubble Space Telescope has taken photos of celestial objects across the universe. Look back at 10 photos ...

Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

A large fraction of M31's dwarf satellites are confined to a plane around the Andromeda Galaxy, as confirmed earlier in 2025 ...

Objects in newly discovered classes also tend to be faint because, again, bright objects will have already been spotted. This ...

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

Looking for a really big story, I naturally headed for "Galaxies in Collision." Bradley Whitmore of the Space Telescope Science Institute in Baltimore brought us up to speed. We've known for a ...

Despite decades of searching for this signal, astronomers have yet to find it. The problem is that our Earth is too noisy, ...

Graduate students from the Graduate University for Advanced Studies (SOKENDAI) participated in an observational training ...