Large hailstones made of ammonia may explain why the gas is missing from large pockets of Jupiter's atmosphere.

A burst of solar wind triggered a planet-wide heatwave in Jupiter’s upper atmosphere, say astronomers at the University in ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

The weather gets a little wild and weird on Jupiter. How wild? Spacecraft instruments have measured strong winds, tracked ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

During the Age of Exploration, explorers relied on compasses to navigate the oceans and conquer the wilds, but they were ...

A molecule detected on a planet 124 light-years away is produced on Earth by decaying phytoplankton and other microbes. There is no other known source.

The weather forecast for Jupiter calls for clouds with a chance of lightning and "mushballs"—a slushy mix of ammonia and ...

Juno is scheduled for an upcoming flyby of Jupiter on May 7, during which it is set to carry out a close approach of the Jovian moon Io at a distance of about 55,300 miles (89,000 kilometers).

Space weather creates the Northern Lights on Earth, and more recently, aurora lights on Uranus helped NASA’s Hubble Space Telescope measure the planet’s interior rotation rate, changing what ...

Nearly halfway through Canada's election campaign, national unity among the most popular parties means distrust of Donald Trump and distaste for a consumer carbon tax. The economic disruption ...