Six planets grace the sky this month in what's called a planetary parade — Venus, Mars, Jupiter and Saturn are visible to the ...

For example, Jupiter is the most massive planet in our solar system. It’s so big, it could swallow 1,000 Earths. So it ...

Galileo Galilei's telescopic discovery of Jupiter's four moons in 1610 revolutionized astronomy and supported heliocentric ...

Some space conspiracy theories just won't go away.

The asteroid is estimated to be between 656 and 1,443 feet across, and will pass at 16 times the distance to the moon.

Giant planets orbiting close to their stars were thought to boot other planets out of their star system on the way in, but ...

NASA's mission to send a spacecraft to scour Jupiter's moon Europa for signs of life appears back on track after Hurricane ...

There are no stars in the sky for the same reason you don't see stars during the day on Earth, according to NASA: The bright ...

Collapsed dead stars, known as neutron stars, are a trillion times denser than lead, and their surface features are largely ...

Gravity is the force that pulls you toward the ... Any slower, and you'll go into an orbit of Earth. Escaping Jupiter Bigger, or more massive, objects have stronger gravitational pull.

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...