Earth ring theory may shed light on an unexplained ancient climate event, scientists say
Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature ...
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NASA unveils full-scale prototype telescope that aims to detect gravitational waves
NASA has given a first look at a full-scale prototype of the ... Also read: Did Earth ever have rings like Saturn? Study links asteroid breakup to climate change The telescope is made from a ...