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Do you Still Need A TV Aerial?

At the moment you need TV Aerials for Freeview and BT Vision but there is the Freesat alternative that is by a satellite dish. But I beli...

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Saturday, 20 October 2018

Photo Gallery: Pulsars Beam Like Lighthouses in the Cosmos

Their spin rate is so consistent that people who navigate spacecraft around our solar system use them as mile markers to know exactly where they are.

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