It got within 140 million km on 14 January, but as it heads off again into the void of space, the southern hemisphere is best placed to see it. Australian National University astrophysicist Dr Brad ...
When NASA and the Indian Space Research Organization's (ISRO) new Earth satellite NISAR (NASA-ISRO Synthetic Aperture Radar) ...
Planets outside our solar system can be wild, weird places. Astronomers have discovered exoplanets shaped like a rugby ball, or where it rains gems, or which have one hemisphere covered in lava. And ...
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