A series of viral social media posts drew attention to an old cosmological theory-that our universe began from a collision ...

Despite being our planet's closest neighbour, scientists have been grappling with the mystery of our moon's origin for hundreds of years. Since the 1980s, experts have assumed that our lunar satellite ...

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A neutron star and black hole were detected merging along an unusual oval orbit, challenging long-held theories about how ...

A titanium signature is posing a new puzzle for the popular theory that the Moon formed when a Mars-size body smacked into Earth some 4.5 billion years ago A chemical analysis of lunar rocks may force ...