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.

Where did the moon's magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft ...

While the moon once had a weak magnetic field generated by a small molten core, the team's research suggests it likely wouldn ...

Astronomers have calculated that the gas giant Jupiter used to be twice as big as it is now, based on the odd orbits of two ...

NASA’s Juno spacecrafthas once again delivered breathtaking images of Jupiter, capturing the giant planet’s swirling storms ...

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

Saturn will burn in Aries from May 24th until September 1, 2025, when the planet will retrograde back into Pisces for a few months before returning to the cardinal fires of the ram from February 14, ...

Under the simulated lights of stars, galaxies, moons and planets, a crowd gathered Wednesday to take in the planetarium at Bradford High School and celebrate its new namesake: Mildred “Millie” ...

Scientific American spoke with the astronomer who has contributed to the discovery of two thirds of Saturn’s known moons ...

A mere decade ago, astronomers knew of just 62 moons around Saturn. Astronomer Edward Ashton is no exception, even though he has helped to discover 192 of them—he thinks that’s the total, anyway, ...

Once thought to be a barren, rocky body, known as Ceres, it is now revealing itself as something far more interesting, in the ...

Jupiter has a mass 2.5 times greater than the rest of the planets combined. In the infant years, it was 2.5 times its current ...