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

The strange lunar swirl Reiner Gamma marks a starting point to explore several craters visible near the lunar terminator ...

Eclipses frequently come in pairs, and this month is no exception. Following the stunning total solar eclipse on August 12, it’s the Moon’s turn to line up for some time in — or, rather, out of — the ...

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

The Sun passes the celestial equator moving south today, marking the Northern Hemisphere’s transition to autumn.

Discover how star clusters influence galaxy evolution and planet formation, revealed by JWST in a groundbreaking study.

Our current planet-hunting techniques are unable to detect an Earth-like planet in an Earth-like orbit around a Sun-like star.

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

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

Dark-sky sights take center stage as Saturn's moons dance and Venus mingles with the Moon in the sky this week.

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.

A possible Jupiter-sized object circling the brown dwarf CD-35 2722 b has implications for planetary science, including what ...