moons

Science

Here's why Jupiter's tally of moons keeps going up and up

6:10am February 09, 2023

by Nell Greenfieldboyce

The first astronomer to discover moons around Jupiter was Galileo, back in the year 1610, but astronomers are still finding more and more moons around this gas giant.

A supermoon is pictured near the Yellow Crane Tower in Wuhan, central China's Hubei Province, July 13, 2022.

Science

The last time to catch a supermoon this year is approaching

4:48am August 11, 2022

by Ayana Archie

Supermoons in general appear 17% bigger and 30% brighter than when the moon is at its farthest point away from Earth, according to NASA.

The solar system's largest moon, Ganymede, is pictured with Jupiter in a photo by NASA's Cassini spacecraft on Dec. 3, 2000. NASA's Juno mission got close to Ganymede on Monday.

Science

NASA Spacecraft Made A Flyby Visit To The Largest Moon In The Solar System

2:34pm June 07, 2021

by Joe Palca

NASA's Juno spacecraft traveled to 645 miles above the surface of the solar system's largest moon, Ganymede, on Monday.

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The moon Ganymede (right) orbits the giant planet Jupiter in this artist's rendering. Scientists say a saline ocean lurks under the moon's icy crust.

Science

Moon River? No, It's An Ocean On One Of Jupiter's Moons!

4:41pm March 12, 2015

by Nell Greenfieldboyce

Scientists announced in a NASA teleconference that the biggest moon in our solar system has a salty ocean hidden below its icy surface.