"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those ...

"What makes Zhúlóng stand out is just how much it resembles the Milky Way—both in shape, size and stellar mass," said the ...

In simplest terms, the rate at which the universe expands on paper doesn’t match actual astronomical observations. That speed ...

SWOT satellite lets scientists observe small-scale eddies and waves for the first time A NASA-led satellite mission has ...

A new study suggests the universe may rotate -- just extremely slowly. The finding could help solve one of astronomy's biggest puzzles.