The moon greets Jupiter two days ahead of its full moon phase on Feb. 1.

Sky This Week is brought to you in part by Celestron. Friday, February 6The bright star Sirius dominates the southern sky ...

Five volcanoes on Jupiter’s moon Io erupted simultaneously, releasing an enormous amount of lava and offering new clues about what lies beneath the moon’s surface. This unprecedented event, observed ...

A new finding of ammonia on the icy surface of Jupiter's moon Europa could have important implications for the search for ...

NASA has recorded the most powerful volcanic eruption outside of Earth on Io, one of Jupiter’s moons. On December 27, 2022, ...

"What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources." ...

There’s no mistaking Jupiter in the sky these Pottsville winter evenings, rising in the southeast as evening twilight ends. In fact you should be able to easily see it long before twilight fades.

Jupiter, the giant planet, appeared to align closely with the full Wolf moon, creating a stunning celestial display visible ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the beginning.

A group of astronomers from the Carnagie Institution for Science announced on Monday that they discovered 12 previously undiscovered moons orbiting Jupiter, including one the institution is calling an ...