The ice on the surface of Jupiter's massive moon Europa is constantly changing, hinting at the presence of a subsurface ocean ...

NASA's Juno mission finds a massive lava lake in Jupiter, offering new insights into volcanic activity beyond Earth and the ...

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...

Jupiter’s rule of the evening sky is coming to a close. Catch some action there while you can, shortly after sunset this ...

Our Solar System's largest planet, Jupiter, was once so huge that it could have held 2,000 Earths, a study has found.

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

China has fired a precision laser across 80,778 miles (130,000 km) of space in broad daylight, bounced it off a satellite circling the Moon, and measured the return, marking the world’s first ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

According to their work, Jupiter's radius was once two to two-and-a-half times its current radius—large enough to contain ...

Jupiter wasn’t always the planet we know today—it was once twice as big, had a magnetic field 50 times stronger, and its ...

New Moon brings excellent dark-sky conditions for observing galaxies, nebulae, and star clusters in the sky this week.