In January 1610, Galileo Galilei, using a newly improved telescope with 20x magnification, observed four celestial bodies orbiting Jupiter, initially appearing as stars. These bodies, later named Io, ...

Some celestial events are worth getting up early for - or perhaps staying up late for. Early risers and/or night owls on Flag Day (Wednesday) morning, given fair weather and clear skies, will be ...

Last night at 2:17 AM, every child from Mrs. Gandy's class went missing.

Jupiter's four Galilean moons will line up in front of Jupiter in the early morning sky on Aug. 8. The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up ...

Most of us know four moons of Jupiter, called the Galilean moons because they were first discovered by Galileo in 1610. Named for figures closely associated with Jupiter from Greek mythology, Io, ...

"Complete color global maps and high-resolution mosaics of Jupiter's four large moons - Io, Europa, Ganymede and Callisto - are compiled for the first time in this important atlas. The satellites are ...

Robyn White is a Newsweek Nature Reporter based in London, UK. Her focus is reporting on wildlife, science and the environment. Robyn joined Newsweek in 2022 having previously worked at environmental ...

As a newborn planet, Jupiter glowed brightly in the sky and outshined today’s sun from the perspective of the gas giant’s largest moons. That early radiance—and upcoming visits by multiple ...