The planet Mercury stands 25° east of the Sun. View the solar system’s smallest planet, along with the crescent Moon, in the ...

Astronomers can use lensing to learn about everything from the makeup of the universe to the nature of extrasolar planets.

The Red Planet passes through M44, also known as the Beehive Cluster, a bright group of young stars in Cancer the Crab.

Integrity served as a deep-space testbed for technology that could aid cancer patients, serve remote clinics, and supercharge ...

Saturn reaches opposition this month, Neptune lingers near Saturn, Mars transits the Beehive, and Jupiter is occulted by the ...

The ringed planet reaches opposition and the Moon occults Jupiter in a rare event not to be missed in the sky this week.

Planet Venus comes to a halt against the background stars; catch it shortly after sunset along with Mercury, before the pair ...

The 192nd asteroid discovered in the main belt is now at its best, located within a diamond shape of brighter field stars.

Tonight’s a two-for-one deal as the Double Cluster shines in Perseus’ northwestern corner, ready for wide-field or closeup ...

The ringed world’s brightest moon is passing north of its parent planet overnight tonight, making it particularly easy to ...

Extragalactic globular clusters millions of light-years away are hiding in your astroimages. Here’s how to find them.

From the Crab Nebula to the Orion Nebula, these 10 winter deep-sky objects are easy to find and perfect targets for small ...