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  Fast read about Mars’ dust storms

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  Is our Solar System the odd one out in a universe full of chaos?

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  Why can’t we see dark matter and how do we know we don’t underestimate the gravity pull of black holes?

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  How do we know the chemical composition of alien planets?

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  Books we love: Robert M. Hazen – The Story of Earth: The First 4.5 Billion Years, from Stardust to Living Planet (Penguin Books, 2013)

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  Is there an ending point or an edge of our Universe?

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  Does a black hole emit anything on the other size of the event horizon? How do we know which side of a black hole is which? Would it be possible for radiation from a supernova event, to travel through a black hole?

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  How does dark matter hold a galaxy together and how do we know where dark matter is more or less dense?

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  Is there anything between galaxies?

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  How is the luminosity of cosmic objects measured and what are the parameters astronomers use?