Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

For more than a century, cosmic rays have remained one of astronomy’s lingering puzzles. These tiny particles move through space carrying extraordinary amounts of energy, arriving from distant corners ...

Jupiter will set about 45 minutes after the sun this week as it sinks from view, moving toward conjunction with the sun, as ...

On July 9, 1979, NASA's Voyager 2 spacecraft made its closest approach to Jupiter. It came within 354,000 miles (570,000 kilometers) of the planet's cloud tops. Voyager 2 was one of two space probes ...