This dense globular cluster is the only Messier object in Capricornus, perfectly positioned for evening observing in the Sea ...

GIMLI will probe the Marius Hills Pit for a hidden lava tube that could shelter astronauts and reveal the Moon's volcanic ...

The Red Planet plows through an open cluster, Mercury reaches greatest eastern elongation, and New Moon brings darkness in ...

Also at opposition this week, asteroid 2 Pallas is passing near a field star with similar brightness to the main-belt world ...

Since ESA’s Herschel observatory went dark in 2013, no space telescope has been observing in the far-infrared. NASA's new ...

About 137 light-years away, the super-Earth TOI-715 b orbits a red dwarf sun. The exoplanet has a mass of 3.02 Earths and was first found in 2023. The same star system may also hold a smaller, nearly ...

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

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

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

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

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

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 ...