Astronomers have detected magnetic fields writhing around the Milky Way’s central black hole.
An exciting new mission takes the hunt for gravitational waves into space.
Dynamicists predict that the larger of Mars’s two moons will shatter to create a ring, slam into the planet – or both – in 20 to 40 million years.
Astronomers have spotted what appears to be a regular signal coming from the blazar known as PG 1553+113.
Astronomers have taken a careful census of the smallest stars in our galaxy’s center.
Winter skies present a nice opportunity for a naked-eye glimpse of Andromeda Galaxy and the Perseus Double Cluster. Plus, the Moon will occult Venus this week during daytime hours and Comet Catalina, while fainter than predicted, is still a binocular sight in the predawn hours.
Our current visitor from the Oort Cloud, rising into northern skies at last, can be glimpsed with binoculars low in the east before dawn. Spotting it with the help of the crescent Moon will be especially easy on December 7th.
After taking us to Comet Catalina’s doorstep, the Moon covers Venus in a spectacular daytime occultation visible from most of North and Central America on Monday.
This month offers great variety in the night sky: planets (and a comet!) before dawn, a strong meteor shower, and a parade of bright stars after sunset.
No, it’s not really pocket-size, but it’s easier than ever to use. Find out what’s new in the Jumbo edition of our popular Pocket Sky Atlas.