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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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Thursday, 12 July 2018

What's a Blazar? A Galactic Bakery for Cosmic Rays

Astrophysicists have traced the origin of some of Earth’s cosmic rays to a blazar 4 billion light years away.

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