Claims about new planets that turned out to be wrong – and why ‘Planet Nine’ may be different from EarthSky … More

A new website lets the public take an online version of an astronaut-selection test, which the European Space Agency (ESA) … More

A team of astronomers in the UK, USA and Australia have found a lonely planet, until now thought to be … More

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A fake image ran in APOD a few days ago, but this video of an International Space Station transit across … More

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LightSail has completed its first round of flight testing. The spacecraft is now armed with new software that will transmit … More