Jupiter's four Galilean moons will line up in front of Jupiter in the early morning sky on Aug. 8. The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up ...

Plus: The August Full Sturgeon Moon shines, the colorful double star Albireo sparkles, and Mercury reappears in the sky this ...

Earlier this year, astronomers spotted a mysterious interstellar object, dubbed 3I/ATLAS, hurtling through the solar system ...

Scientists have found strong evidence of a giant gas planet which could have habitable moons in the nearest star system to ...

This rare planetary alignment will be visible from August 10 but will be best viewed later in the month. Here’s everything ...

NASA scientists say the new planet orbits in the habitable zone of a Sun-like star in the Alpha Centauri stellar system - and ...

August brings Saturn and Neptune together, offers two shadow transits of Titan, and sees a conjunction of Venus and Jupiter.

It could be the most spectacular heavenly sight of 2025, the close pairing of the two brightest planets, Venus and Jupiter, ...

Look east around 4 a.m. local time, just before dawn, to see the slender form of the crescent moon climb above the horizon.

Just five of Jupiter's moons—Amalthea, Io, Europe, Ganymede and Callisto—are large enough or close enough to the planet to eclipse the sun. Because of the low tilts of the moons' orbits, they ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...

Jupiter contains a whopping 95 known moons, including the fascinating world Europa, which harbors an icy ocean beneath its cracked shell. With binoculars or a telescope, you can often spot Jupiter ...