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10 mysteries of the universe: Is our solar system normal?

10 mysteries of the universe: Is our solar system normal?

19 September 2018

Puffball planets the density of polystyrene are just some of the oddities we’ve spied in other solar systems – is our own backyard the exception, not the rule?
10 mysteries of the universe: What is dark matter?

10 mysteries of the universe: What is dark matter?

19 September 2018

It’s invisible, and yet the motions of galaxies suggest it must be there. But a recent discovery has just deepened the mystery of the universe we cannot see

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