If the JWST can see galaxies billions of light-years away, why can’t it find the proposed Planet X in our solar system?

PRIMA — the Probe far-infrared Mission for Astrophysics — is in the proposal stage, with hopes to be launched by the end of ...

Human spaceflight has long been a goal for SpaceX, the rocket and satellite manufacturing venture of billionaire Elon Musk.

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

The volume density of asteroids in the main belt about 10 times higher than that of Jupiter’s Trojan asteroids.

Approximately 5,000 meteorites are heating up and sinking into the ice every year and becoming inaccessible, a new study finds.

The long-delayed Starliner mission, if successful, will give NASA and future space tourists more options for getting to low ...

Barry Wilmore and Sunita Williams will be aboard the Starliner, scheduled to launch at 10:34 pm EDT on Monday, May 6.

Earth will pass through a trail of debris left behind by Halley’s Comet in 985 B.C.E. ahead of the Eta Aquariids' peak.

The Moon moves down an early-morning line of planets while Eta Aquariid meteors streak through the sky this week.

Discovering new black holes is no easy feat — where do you even begin to look? New data and techniques help us get closer ...

The spiders on Mars form during the planet's springtime when temperatures rise and rays of sunlight touch the ice layers of ...