Here’s what alien astronomers would see if they looked at Earth
26 June 2018
Astronomers have used a spacecraft called DSCOVR to figure out what the inner solar system would look like to distant telescopes
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A mountain range on Saturn’s moon Iapetus may be a former ring
2 March 2018
Falling space debris should make craters on rocky surfaces. But on Saturn’s moon Iapetus, it might have created a belt of mountains around the equator
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13 November 2017
Our galaxy may have billions of habitable worlds. A proposal to spread life says we should use giant lasers and light sails to send microbes out to them
