Earth may have had a Saturn-like ring over 400 million years ago, 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 ...
Relive NASA’s debut launch of its mighty SLS rocket on second anniversary
On the second anniversary of its maiden launch, relive the moment NASA's mega moon soared skyward, sending the Orion spacecraft toward our celestial neighbor.
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Earth ring theory may shed light on an unexplained ancient climate event, scientists say
“You’d need to capture a big one and get it into exactly the right orbit to break up. … (This mini-moon) is just an example ...