Twenty-five years ago, humanity first witnessed a collision between a comet and a planet. From July 16 to 22, 1994, enormous pieces of the comet Shoemaker-Levy 9 (SL9), discovered just a year prior, ...

In the vast solar system, if one were to select a 'behind-the-scenes hero' whose impact on Earth is profound yet often overlooked, Jupiter would undoubtedly be the strongest candidate. This giant ...

A massive collision billions of years ago may have dramatically reoriented Ganymede, Jupiter’s largest moon. Naoyuki Hirata at Kobe University, Japan, and his colleagues studied Ganymede’s extensive ...

New research suggests a giant impact may not have been responsible for the formation of Jupiter's core. Most planetary ...

The largest moon in our solar system may have been knocked off its axis and cracked like an egg four billion years ago by an asteroid bigger than the one that wiped out the dinosaurs on Earth at the ...

For a long time, Jupiter had always been in my mind as that 'gas ball' composed of hydrogen and helium from documentaries. My imagination made me think that any celestial body could easily penetrate ...

Jupiter's unusually dilute core may be the result of a catastrophic impact billions of years ago with a protoplanet at least 8x the mass of Earth. By Joel Hruska August 15, 2019 Share on Facebook ...

A peculiar class of meteorites has offered scientists new clues about when the planet Jupiter took shape and wandered through the solar system. Scientists have theorized for years now that Jupiter ...

Over four billion years ago, the solar system was a wild and dangerous place. Swirling clouds of dust and gas slowly turned ...

The bright stars Castor and Pollux will be positioned to the left of the moon in the early morning hours of Aug. 19. Mercury, ...