Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

Using this telescope, Galileo peered up towards the constellation Orion on January 7, 1610. His target was the planet Jupiter – an object brighter than the surrounding stars. To his surprise ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

The moon, discovered by Barnard, orbits Jupiter within the orbit of Io and was named Amalthea after the nymph who, according to Greek mythology, fed Zeus with goat's milk in his childhood. Images ...

In the 1990s, NASA's Galileo mission performed magnetic ... of Jupiter's gravitational field — Io moves around Jupiter on an eccentric orbit, and its distance from the giant planet can vary ...

On this date, Jan. 17, 2002, the Galileo probe made it’s 33 rd pass of Jupiter’s moon, Io. After Voyager 1’s pass in 1979, Io was dubbed the most volcanically active place in the solar system.

Europa Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...

“They were all in line with the equator of Jupiter they all moved round… in a regular manner." This showed Galileo something extremely important - that the planets could orbit things other ...

Juno fired its main engine beginning at 11:18 p.m. EDT/0318 Tuesday GMT, slowing the spacecraft so it could be captured by the planet’s gravity. [UPDATE: Tuesday, July 5, 11.00am] Juno, the ...

The investigation of light and optical properties stretches back centuries, at least to the ancient Greeks, Egyptians, and Mesopotamians. In fact, even artificial lenses date back to as early as ...

However, since Amalthea takes less than half a day to orbit Jupiter, its temperature could ... an image of the moon since 2000 when NASA’s Galileo spacecraft revealed impact craters, hills ...

In an elliptical orbit of Jupiter since July 2016 ... The first close-up images of Io since NASA’s Galileo mission in 1997 revealed the emergence of a fresh volcano with multiple lava flows ...