GREGOR's high-resolution FAST IMAGER happened to scan the sunspots in active region NOAA 14274 just 30 minutes before the emission of an X1.2 solar flare, giving researchers an unprecedented view of ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Be ready, werewolves and witches, as well as general lovers of the night sky. The last full Moon of the year is happening on ...

Before Einstein, before Bohr, there was a Jesuit priest with a telescope and a startlingly modern vision of the universe.

Looking for a sky event this week? Check out our full Sky This Week column. December 3: The Moon again blots out the Pleiades ...

It’s December, and we’re in our darkest month. It is also now meteorological winter — the name given to the coldest three ...

The Cold Moon, the 12th and final full moon of 2025, will rise on Dec. 4 and reach its highest point in the night sky.

In 2025, NASA faced unprecedented uncertainty as it grappled with sweeping layoffs, looming budget cuts, and leadership ...

By combining the language of groups with that of geometry and linear algebra, Marius Sophus Lie created one of math’s most ...

Almost all planets in our solar system have moons – why not exoplanets? Astronomers believe they have discovered the first ...