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

There’s no mistaking Jupiter in the sky these 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 is ...

On December 7th, skywatchers are in for a treat asthe Moon will travel across the sky accompanied by the brilliant planet Jupiter in a stunning conjunction. According to NASA’s skywatching tips for ...

The Jovian moons Io and Europa will throw their shadows over Jupiter's cloud surface in the early hours of Nov. 5. When you purchase through links on our site, we may earn an affiliate commission.

A close conjunction of the waning crescent Moon (approximately 26% illuminated) and Jupiter occurred around 7 A.M. EDT, observable in the eastern sky before sunrise, with the Moon positioned between ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...