The Conversation

Something new under a (dead) sun

Author: The Conversation USA

The closest white dwarf to Earth just 8.6 light years away as seen by NASA’s Hubble Space Telescope and it’s not the obvious bright object in the centre (the Dog-Star Sirius) but rather orbiting it at bottom left is a tiny point of light. This is Sirius B, a companion white dwarf with nearly as much mass as our Sun but smaller in size...

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