Looking for a sky event this week? Check out our full Sky This Week column. January 20: Comet Schaumasse slides by some ...

The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

Jupiter will be at its most spectacular in 2026 in the early hours of Jan. 10, as it shines above the eastern horizon among ...

On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 on a mission to study Jupiter and its moons. It also flew by Venus and ...

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 on a ...

Shining in the constellation Gemini near the bright stars Pollux and Castor, Jupiter's opposition is the best time to see the ...

On Jan. 10, 2026, Jupiter reaches opposition, the moment when Earth passes directly between the planet and the sun. It puts ...

Explore seven factual aspects of Jupiter, including its size, moons, rotation, atmosphere, rings, formation, and magnetic field based on NASA findings.

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists are ...

The wolf moon is spectacular enough, but look east and you’ll see a celestial titan the size of a pinprick ...

Saturn reigns supreme when it comes to the number of moons orbiting any solar system planet. Including the 128 ...

Sky This Week is brought to you in part by Celestron. Friday 9Cygnus may be sinking toward the horizon a few hours after ...