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

Jupiter's moon count reaches 95+ official satellites. Explore the history of the Jovian system, from Galileo to the latest NASA discoveries.

With the moon out of the way on Jan. 18, bright Jupiter and Saturn become stand-outs in the January night sky.

CAPE CANAVERAL, Fla. (AP) — The solar system has a new winner in the moon department. Twenty new moons have been found around Saturn, giving the ringed planet a total of 82, scientists said Monday.

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 ...

The night sky may look brighter right now because the first new moon of 2026 is just hours away. January’s full moon is called the Wolf Moon, and it will also be a supermoon, the first supermoon of ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor Europa is thought to harbor a vast global ocean of liquid water beneath ...