Since 2013, the NEOWISE mission has surveyed more than 19,000 asteroids and comets and discovered 72 new Near Earth Objects (NEOs)

Stephen Hawking supports a plan to send tiny nano-spacecraft to the Centauri system within a generation.

Air pollution is a major issue facing us Earthlings, and knowing its causes (both natural and man-made) is a key part in addressing it

On April 12, 1961, Soviet cosmonaut Yuri Gagarin became the first person in space.

A more accurate measurement of standard candles has thrown a wrench into our standard model of cosmology.

The SpaceX Falcon 9 that triumphantly accomplished history's first upright landing of the spent first stage of a rocket on a barge at sea - after launching a critical cargo payload to orbit for NASA - sailed back into port at Cape Canaveral overnight in the wee hours of this morning, April 12, standing tall.

One of the best dusk apparitions of the planet Mercury occurs this weekend... this event also sets us up for a very special event next month: a transit of Mercury across the face of the Sun.

The Moon is tidally locked to the Earth so it always shows us the same face. But the Earth is slowing down so that it'll eventually lock to the Moon as well. What are the forces involved and when will this happen?

A SpaceX commercial cargo freighter jam packed with more than three and a half tons of research experiments, essential crew supplies and a new experimental inflatable habitat reached the International Space Station (ISS) and the gleeful multinational crew of six astronauts and cosmonauts on Sunday, April 10.

A massive sunspot emerged this past weekend, reversing the downward trend for solar cycle #24... for now.

New research has shed light on what the maximum amount of mass a neutron star can achieve before it collapses into a black hole

All around, today, April 8, was a great day for the future of space exploration. SpaceX successfully restarted their critical cargo flights for NASA to stock the International Space Station (ISS) with essential supplies and groundbreaking science experiments, while the innovative firm also successfully landed the first stage of their Falcon 9 rocket on a barge at sea.

Earlier today, private aerospace company SpaceX achieved a major milestone by successfully landing a Falcon 9 rocket at sea

Water ice in a disk surrounding a star might seem out of place, but the ice might be essential to the formation of gaseous planets.

The Electron Cloud Model was of the greatest contributions of the 20th century, leading to a revolution in physics and quantum theory

The SpaceX Dragon is set for its 'Return to Flight' mission on Friday, April 8, packed with nearly 7000 pounds (3100 kg) of critical cargo and research experiments bound for the six-man crew working aboard the International Space Station.