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Astronomers respond to 7-planet find
Love this video of astronomers showing their excitement about the discovery of 7 Earth-sized planets orbiting a nearby star.
March 5, 2017
At the mouth of a Mars mega-flood
New images from ESA's Mars Express spacecraft show an ancient outflow region, where fierce floodwaters once raged.
March 2, 2017
Astronauts’ brains change shape in space
MRIs taken before and after missions show that astronauts’ brains compress and expand in space.
March 2, 2017
SpaceX to send 2 people around moon
SpaceX's Elon Musk would not name the 2 private citizens who approached the company with an offer to pay for a flight around the moon and back.
February 28, 2017
Catch Comet Encke this evening!
The comet's orbital period is short - only 3.3 years - and the orbit is relatively close to Earth. Encke's Comet is now on its 63rd known visit to our part of space.
February 27, 2017
This date in science: Supernova 1987A
Supernova 1987A first appeared in earthly skies 30 years ago today. It was the closest observed supernova since 1604.
February 23, 2017
Wow! Nearby TRAPPIST-1 has 7 planets
Big discovery! NASA's Spitzer Space Telescope has revealed 7 Earth-sized planets orbiting a tiny star only 40 light-years away. Three of them are firmly in the habitable zone.
February 22, 2017
What would life be like near TRAPPIST-1?
The newly discovered exoplanets orbiting this nearby star are likely to be bathed in high-energy ultraviolet radiation. What would life be like there? An expert explains.
February 22, 2017
Brightest, farthest pulsar found!
In one second, this distant pulsar – the spinning remains of a once-massive star – emits the same amount of energy as that released by our sun in 3.5 years.
February 21, 2017
