Space
The supermassive black hole known as Sagittarius A has been observed emitting X-ray flares, lasting a few hours, about once a day.
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Deep in the heart of the southern Milky Way lies a stellar nursery known as the Carina Nebula - located 7500 light-years from Earth in the constellation of Carina (The Keel).
ESA says its Mars Express probe has returned some of the strongest evidence yet that an ocean once covered part of Mars.
NASA's received over 6,300 applications to join its astronaut corps - twice as many as usual.
Mars may have been an arid planet for over 600 million years, making it too hostile for any life to survive on the planet's surface.
Iran says it's launched an observation satellite, claiming it will be used to collect weather data.
Astronomers have discovered a potentially habitable planet right on our doorstep - just 22 light years away.
A camera aboard one of NASA's twin Gravity Recovery And Interior Laboratory (GRAIL) lunar spacecraft has sent back footage of the far side of the moon.
Space Exploration Technologies (SpaceX) has successfully test fired its new engine, SuperDraco.
After initial suggestions that death-ray-wielding Americans were to blame, Russian space agency Roscosmos has concluded that its lost Martian probe, Phobos-Grunt, was cripped by space radiation.
NASA has for the first time analyzed the 'alien matter' in the interstellar wind.
When scientists discovered two great swaths of radiation encircling Earth in the 1950s, it spawned exaggerated fears about "killer electrons" and space radiation effects.
Space weather forecasts are about to get more accurate - just in time for a period of increased solar activity.
NASA's nearly doubled the number of known exoplanets in one fell swoop, with the announcement of 11 new planetary systems hosting 26 planets.
NASA is poised to kick off a new series of tests on the J-2X - the engine that will help carry humans to deep space.
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