Image: Launching the Galileo mission

Space Shuttle Atlantis deployed the Galileo spacecraft six hours, 30 minutes into the flight on Oct. 18, 1989. In this image, Galileo, mounted atop the inertial upper stage, is tilted to a 58-degree deployment position in ...

Image: The moon in 1992

The moon was a focal point for NASA in 2017, whether it was blocking out the sun during one of the most-viewed events in U.S. history, or reinvigorating the agency's human space exploration plans. But the moon has always ...

Introducing JUICE—the Jupiter Icy Moons Explorer

It may still be five years away from launch, and over a decade before our Jupiter Icy Moons Explorer reaches the gas giant and its icy moons, but preparations are well under way. This new artist's impression depicts the final ...

Hubble spots possible venting activity on Europa

When Galileo discovered Jupiter's moon Europa in 1610, along with three other satellites whirling around the giant planet, he could have barely imagined it was such a world of wonder.

Image: Saturn's past and present moons

Saturn's beautiful rings form a striking feature, cutting across this image of two of the planet's most intriguing moons.

Jupiter returns as king of the night sky

Since January, there have not been any planets to see in the evening sky. Instead, all five bright planets have been visible in the early hours before sunrise. But now Jupiter, the king of the planets, is making a return ...

Image: Europa's blood-red scars

Jupiter's moon Europa is a bizarre place. There is something undeniably biological about this image, sent back by NASA's Galileo spacecraft – the moon is scarred by deep red gashes, resembling the vibrant red veins flowing ...

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