Kicking off the year's cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a ...

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

Skywatchers can look forward to an extraordinary year as 2026 brings a steady lineup of rare planetary alignments, striking ...

Solar system comet C/2024 E1 (Wierzchos) makes its closest approach to the sun today (Jan. 20) during an event known as ...

Northern lights were reported across mid-latitudes, with sightings stretching from Germany to the southwestern United States, ...