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

Early on the 6th, our satellite passes in front of the solar system’s largest planet in a relatively rare event.

South Korea's Nuri rocket carries a batch of Earth-observing satellites, SpaceX launches a military mission and a Starlink ...

The waning Moon passes through Cancer, sharing the constellation with both Mars and the Beehive Cluster (M44).

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

Proposals are submitted annually by scientists who wish to use these facilities, and are reviewed by the Telescope Allocation Committee.

A crescent Moon passing in front of our solar system’s largest planet is a rare and brilliant sight. Here's how to see it for ...

The ringed planet is now at its best for the year, reaching opposition in the constellation Cetus and shining all night.

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

The solar system’s most distant planet is now at opposition and looking its best. Search it out after dark using optical aid.

Neptune reaches opposition this evening at 10 P.M. EDT, placing the planet at its best for viewing. However, with the nearly ...

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