Planets made of dark matter may have exploded

Dark matter remains frustratingly elusive. We haven’t seen any direct detection in any of our lab experiments, and on a cosmic scale we only have circumstantial evidence of its existence.

Now, a new hypothesis proposes that a large part of black matter can be bound inside tight balls the size of Neptune – so-called dark matter planets. But while these planets would remain invisible to us, they could collect helium and hydrogen atmospheres that could undergo nuclear fusion, giving us a major clue to their presence.

Dark matter planets

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