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A newly revealed rocky mega-planet shows the universe was capable of creating extraterrestrial-friendly worlds shortly after the Big Bang.
Anomaly no more? Radio observatories in Australia and Puerto Rico have both now picked up brief bursts of radio waves from beyond our galaxy.
Astronomers use the Very Large Telescope to reveal a space drama involving two unique stars in the Ara constellation.
You should probably read this. It's only potentially one of the most important revelations in physics since Einstein's days.
For centuries, distant planets were the stuff of sci-fi, but in recent years, science has begun to confirm their existence. Take a quick tour of the more than 1,700 (so far) known exoplanets in the visible universe.
There's 400 percent more light in intergalactic space than sources could produce, say researchers. Could dark matter be the cause?
Scientists have come up with a very video game-like way to take out orbiting space debris using ground-based lasers.
Astronomers locate a rare Earth-size rocky planet outside of our solar system, but it's not very hospitable.
Gillian Finnerty, one of 1,058 people selected to the shortlist for the Mars One project, says going to Mars and never seeing her family again is like immigrating to Australia.
Kepler-186f orbits an M dwarf star in the constellation Cygnus. More importantly, it's the first confirmed Earth-size, potentially habitable planet elsewhere in the universe.