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 ...

A space rock struck the Moon in 2024, carving a 728-foot crater. Two new studies show how the impact reshaped the lunar ...

The bright Moon stands prominently in Aquarius the Water-bearer this evening, quickly waxing toward Full. Swing your scope up toward Earth’s lone satellite tonight and focus in on a point just east of ...

Scientists once thought luminiferous ether pervaded the cosmos. Michelson and Morley’s ingenious experiment to find it ...

Rising around 7:30 P.M. local daylight time, Saturn reaches an altitude above 40° in the southeast by local midnight. Visible ...

Distant planet Neptune passes close to a golden-hued background star this evening, offering a nice color contrast.

A great object for small telescopes, M63 can be found 5.3° northeast of magnitude 2.9 Cor Caroli, Canes Venatici’s alpha star. It’s part of the same galaxy group as M51 (the Whirlpool Galaxy), and ...

Dione crosses Saturn’s north pole, projecting its shadow onto the cloud tops as Tethys disappears into the planet’s shadow.

In a groundbreaking announcement, the U.S. Space Force stated publicly on Monday, Sept. 14, that it currently has on-orbit ...

Now is the best time to catch 145-mile-wide 3 Juno as it passes through a random collection of 9th- and 10th-magnitude stars.

The Moon, Venus, Spica, and Mercury now all stand in a line tonight, but only if you’re quick — Mercury sets soon after the ...