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

New ground- and space-based infrared observations are giving astronomers a better handle on the true populations of red ...

This NASA/ESA Hubble Space Telescope image reveals a tiny patch of sky in the constellation Hydra. The stars and galaxies ...

Explore the breathtaking beauty of the cosmos with these seven rare images of star clusters, captured by NASA's Hubble Space ...

A handful of planets in the solar system are expected to line up in the night sky for a few days in January 2025. Here's when ...

Both Venus and Saturn will be in the Aquarius constellation, the water bearer, during their close approach. To help spot it, ...

If you’ve been a faithful reader of my Skywatch column, thank you! You also know how much I love the winter constellations ...

Leo P, a galaxy once dormant, has reawakened to form stars again, offering new clues about the universe's earliest galaxies.

Plus: Saturn’s moon Iapetus is visible, our Moon passes the bright star Spica, and Mars skims south of Pollux in Gemini in ...