NASA's Chandra X-ray Observatory has identified a massive black hole being ejected from its host galaxy at a staggering speed of several million miles per hour.
NASA’s Hubble telescope has captured a breathtaking image of planetary nebula NGC 7026.
NASA's NASA's Solar Dynamics Observatory (SDO) is hoping to use Venus's transit of the sun on June 5 to better calibrate its instruments.
Astronomers at Arizona State University have found the faintest galaxy yet, one of the ten most distant objects currently known in space.
Disappointingly, scientists say they've been able to establish where the methane on Mars comes from - and it's not from living organisms.
Look out: we're headed for a crash. In, ooh, just four billion years or so our Milky Way galaxy is set to collide with neighboring Andromeda.
A recent study by an international team of astronomers has determined that Earth's moon does indeed have a far-reaching, invisible influence on the Sun's solar wind.
Crew members of Expedition 31 aboard the International Space Station (ISS) unberthed the SpaceX Dragon capsule from the orbiting complex’s Harmony module early this morning.
By rights, the much fainter sun two billion years ago should have left Earth as a giant snowball, incapable of developing life.
Passenger spaceflight is a step closer to reality, following FAA approval for a powered test flight from Virgin Galactic later this year.
There's more atomic hydrogen in space than thought - but still not enough to solve the dark matter problem.
A Canadian fjord may help scientists improve their understanding of Jupiter's icy Europa moon.
NASA's Grail mission to study the moon from crust to core has completed its main task ahead of schedule, gathering information about the internal structure and evolution of the moon in unprecedented detail.
Astronomers have determined that the Milky Way's central black hole was quite active in the past.
Scientists on NASA's asteroid sample return mission, OSIRIS-REx, have been able to measure the orbit of their target asteroid so precisely that they can see the effects of sunlight on its motion.
A site has finally been chosen for the world’s largest and most sensitive radio telescope, the Square Kilometre Array - and it's both Australia and South Africa.
The Space X Dragon capsule has successfully rendezvoused with the International Space Station (ISS), after being maneuvered into position by station's sophisticated robotic arm.
NASA's a bit concerned that the rush to the moon created by Google's Lunar X Prize could damage historic sites there.
New, NASA-funded research indicates that very large molecules containing carbon - a key ingredient for the building blocks of life - have originated on Mars.
NASA's Mars Exploration Rover Opportunity recently used a low sun angle to snap a memorable view of a large Martian crater.