Science & Astronomy

A geomagnetic storm that sparked spectacular aurora displays could also have contributed to the sinking of the Titanic.

The Tarawa Atoll, a remote Pacific nation in the Republic of Kiribati, can be seen from space in this image captured by the Copernicus Sentinel-2 mission.

The OSIRIS-REx probe is scheduled to pull off NASA's first-ever asteroid-sampling operation on Oct. 20, snagging precious dirt and gravel from a carbon-rich space rock called Bennu.

Unusual flashes of gamma rays could reveal that what appear to be giant black holes are actually huge wormholes, a new study finds.

A high-tech pioneer for NASA's moon-orbiting Gateway space station is being readied for liftoff early next year.

If you had a few billion dollars and some of the most talented space scientists and engineers in the world, where would you go?

Scientists have found fresh evidence in lunar rocks showing that the moon was likely formed after a Mars-sized planet crashed into the proto-Earth more than 4 billion years ago.

Today, "Space Chat" explores climate change.

If there is indeed life on Venus, it may have come from Earth — aboard an asteroid that scooped up microbes high in our skies.

Planets aren't the only things in the solar system with auroras. Comets can have them too, data from the European Space Agency's Rosetta mission has revealed.

The first black hole to be imaged directly is giving up even more of its secrets.

Every once in a while, orbital trajectories and fate's gravity conspire to let Earth briefly adopt a miniature moon to join us for a few measures of our planet's constant dance around the sun.

Earth will change the direction of an asteroid that's getting awfully close this week.

To date, planetary scientists have built spacecraft and astrophysicists have built space telescopes. But the time has come to change that, some solar system researchers say.

Going forward, the North Pole will be plunged into twilight and then darkness.

Scientists have found an alien world that orbits its host star every 3.14 Earth days, a close approximation of the famous mathematical constant pi.

Saturn's geyser-spewing moon Enceladus may be even more active than scientists had thought.

Astronomers have discovered a new type of alien world — the first known "ultra-hot Neptune," a giant planet that orbits its star 60 times closer than Earth does the sun, a new study finds.