NASA Astronaut Peggy Whitson set the endurance record for time in space by a U.S, astronaut today, Monday, April 24, during her current stint of living and working aboard the International Space Station (ISS) along with her multinational crew of five astronauts and cosmonauts.

Located in the direction of the Ursa Major constellation is Messier 40 (Winnecke 4), an optical double star that looks like a double star system.

Because of its extremely eccentric orbit, slow rotation, and lack of an atmosphere, Mercury experiences extreme variations in surface temperature.

A new study of distant, early galaxies helps us understand the early days of our Universe.

Join Fraser and a panel of space friends for a marathon of COSMOS on Monday at 12:00pm PST. We'll watch 13 episodes, back to back, answer questions, update the science, and try not to go insane.

A research team from WSU has created, for the first time under laboratory conditions, a fluid that behaves as if it has a negative mass.

KENNEDY SPACE CENTER, FL - This week's blastoff of the 'SS John Glenn' Cygnus cargo freighter atop an Atlas V rocket on a critical mission delivering over 7000 pounds of science and gear to the International Space Station (ISS) yielded stellar imagery from all around the Florida Space Coast.

KENNEDY SPACE CENTER, FL - The SS John Glenn commercial Cygnus resupply vessel arrived at the International Space Station early this morning, April 22, carrying nearly four tons of science and supplies crammed inside for the five person multinational Expedition 51 crew.

The HiRise camera aboard NASA's Mars Reconnaissance Orbiter has captured color images of the Opportunity's 2004 Hole In One landing site inside Eagle Crater.

For the first time ever, an international team of astronomers - using the ALMA array - have taken a clear image of an accretion disk around a young protostar.

We assume that habitable exoplanets will have significant land masses, because that's what we have on Earth. Are we wrong?

Cassini took this rare photo of the Earth and moon on April 12 just before the start of its daring Grand Finale mission this weekend.

An international team of scientists has found another rocky planet (LHS 1140b) orbiting a nearby red dwarf star. And it looks to be our best bet to date for finding a habitable exoplanet.

A new study from the Finnish Meteorological Institute shows how jettisoned hardware and Martian weather could make a dangerous combination!

Titan's so-called "magic islands" are not islands at all, but nitrogen bubbles, according to researchers at NASA's Jet Propulsion Laboratory.

KENNEDY SPACE CENTER, FL - A new Russian/American duo has arrived at the International Space Station this morning, April 20, after a six-hour flight following their successful launch aboard a Russian Soyuz capsule on a fast track trajectory to the orbiting outpost.

In the week's FISO Telecon Series, NASA engineer Michael Paul presented a novel concept for an in-situ miission to Venus.