Solar system

The discovery of water vapor trailing the Jovian moon sets the scene for future missions that will determine if Europa could harbor life.

Astronomers created images of 42 objects, including dwarf planet Ceres and the main asteroid belt's largest bodies.

The tail of 2005 QN173 is long enough to reach from Earth to the moon and back again.

The origin of the debris that produces the Orionids is the famous Halley's Comet, which is visible from Earth roughly every 75 years.

The floods resulted from crater breaches that created deep rivers on the Red Planet's surface like the "Grand Canyon of Mars" Loire Vallis, new research shows.

Mega comet Bernardinelli-Bernstein, which is in our solar system, is so big it was mistaken for a dwarf planet

In a new model—known as the "hit, run and return" scenario—smaller bodies repeatedly hit Earth and Venus during their formation.

Researchers who suggest Mars' size could explain why it lost its water are the latest team to consider how Earth's neighbor became the Red Planet.

The high-resolution image of the Tycho crater was taken by a telescope at the Green Bank Observatory in West Virginia, using new radar technology that could reveal the solar system's secrets.

Several east and southeast Asian cultures hold spiritually significant celebrations around the time of the harvest moon.

The impact caused a bright flash at the surface of the solar system's largest planet

The asteroid could measure up to 787 feet in diameter, according to NASA's Center for Near Earth Object Studies.

This month's full moon is also called a "blue moon"—although our natural satellite will not actually change color.

The Perseids occur every year when the Earth passes through streams of debris left behind by the comet Swift-Tuttle in its 133-year-long orbit around the sun.

The Solar Orbiter spacecraft, jointly operated with the European Space Agency, passed within 4,967 miles of the planet's surface on August 9.

The debris that produces the Perseids originates from the comet Swift-Tuttle, which is in a 133-year-long orbit around the sun.

The Perseid meteor showers will peak between August 11 and August 13, and they are best seen after midnight.

The moon will only be 13 percent full during tonight's Perseid meteor shower peak, providing ideal viewing conditions—assuming you have access to clear skies.

To mark International Asteroid Day, Newsweek spoke to scientists at the forefront of efforts to protect our planet from a catastrophic asteroid strike.

NASA is launching a mission to the asteroid in 2022 in the hope of exploring what was long thought to be the exposed iron core of a small planet. But a study has cast new light on its origins.

The space rocks will be travelling at speeds of more than 17,000 miles per hour during their very close approaches.

This next full moon is being referred to as a "Super Flower Blood Moon."

The Eta Aquariids is a moderately active shower caused by the debris left behind by Halley's comet.

"We have been thinking for so long about having our Wright brothers moment on Mars, and here it is," MiMi Aung said.

For the best view, head to an open area on April 26 and watch our satellite as it rises just above the horizon.

NASA hopes the helicopter will demonstrate powered, controlled flight on another planet for the first time.

Astronomers had calculated that there was a small chance that the space rock could collide with our planet in 2068.

Saturn experiences seasons just like the Earth, although they last for significantly longer than those on our planet.

On the March equinox, the length of the day and night is almost equal wherever you are in the world.

The rock, which is traveling at nearly 77,000 miles per hour, is due to come closest to Earth on March 21.