The companion star of Betelgeuse, seen for the first time by the Gemini North Telescope. "This discovery answers the ...

The winter season so far, at least by Laramie’s standards, has been somewhat warm in comparison to the frigid temperatures we’re used to. While this has thus far caused problems for ski-bums ...

While two teams have ideas about what happened to yellow supergiant M31-2014-DS1, ultimately, it remains a mystery.

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

The faint crescent Moon returns to the western sky after the new Moon on January 19, 2026, providing a chance for early evening observation near the horizon after sunset.

On January 18, 2026, the new moon creates dark skies for observing Jupiter, Saturn, and the Orion constellation. Detailed positions and celestial coordinates for global observers are provided.

What you won’t see, though, are green ones. The reason for this is both a fault in the stars and in ourselves: we don’t see ...

Betelgeuse is the star that everybody can't wait to see blow up, preferably sooner rather than later. That's because it's a ...

In February, you’ll be able to see Venus, Jupiter, Saturn, and Mercury with the naked eye, but you’ll need binoculars or a ...

Astronomers have uncovered the long-hidden cause behind Betelgeuse’s strange behavior: a small companion star carving a visible wake through the giant’s vast atmosphere. Using nearly eight years of ...

A hidden companion star confirmed around Betelgeuse Gas wake detected using Hubble Telescope data Discovery explains Betelgeuse’s strange brightness shifts ...