NASA's Mars rover Curiosity is on the road again, driving toward a flat rock with pale veins that the team says could help shed light on Mars' watery past.
Making the jump to lightspeed in the Millennium Falcon wouldn't look anything like the way it's depicted in the Star Wars movies, say University of Leicester students.
NASA scientists are now certain that the asteroid Apophis won't, as feared, hit the Earth during a flyby in 2036.
An international team of astronomers has found the largest known structure in the universe - a group of quasars four billion light years across.
Astronomers have established that the spectacular barred spiral galaxy NGC 6872 - first discovered decades ago - is the largest-known spiral galaxy.
Scientists with NASA's Kepler mission say they believe they've found the most Earthlike exoplanet yet.
Mingus - or more formally, SN SCP-0401 - is a Type Ia supernova with a redshift of 1.71, dating back 10 billion years. It's exceptional for its detailed spectrum and precision color measurement, unprecedented in a supernova so distant, says the team.
The massive asteroid Apophis shot past Earth last night, on a trajectory that will bring it even closer during its next flyby in 2029.
The vast disk of debris encircling Fomalhaut B hosts a rogue planet which may unleash a cataclysm in 2032.
Astronomers believe they've found a large asteroid belt around Vega, the second brightest star in northern night skies.
Another crucial instrument on the Curiosity Mars rover has had its first test: the Dust Removal Tool, used to sweep dust from the rover's target rocks.
The data's in from the simulated Mars mission in which six trained astronauts were shut up for a year and a half. And it seems that long-term missions of this kind do indeed lead to problems for the crew.
NASA's Kepler mission has discovered four new planets that are less than twice the size of Earth and which orbit in their star's habitable zone.
New data from NASA's Dawn mission bears out the theory that the dark color of the protoplanet Vesta is caused by the impact of carbon-rich asteroids.
There are at least 100 billion planets in the Milky Way alone, say Caltech scientists, based on extrapolations from the Kepler-32 system.
A meteorite found in the Moroccan desert in 2011 appears to have originated in Mars' crust - and contains much more water than any Martian meteorite ever found before.
Rolling robots like spiky tumbleweeds could be used to explore the moons of Mars, says a team of NASA, Stanford and MIT engineers.
Astronomers have discovered enormous outflows of charged particles from the centre of our galaxy, moving at supersonic speeds.
Even with shielding, the amount of cosmic radiation involved in a trip to Mars could put astronauts on the path to Alzheimer's disease.
The US Geological Survey is to decomission Landsat 5 - the longest-operating Earth observing satellite mission ever.