Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

Scientists had high hopes for the sample of asteroid Ryugu collected by the Japanese Hayabusa-2 probe. The actual findings ...

Astronomers studying the remnant SNR 0509-67.5 have finally caught a white dwarf in the act of a rare “double-detonation” ...

The collapse of tropical forests during Earth’s most catastrophic extinction event was the primary cause of the prolonged global warming which followed, according to new research.

The Canadian flag has taken on numerous meanings over the years. Most recently, it's been seen by many as a display of ...

Earth lives in a shooting gallery, with small and large rocky bodies in abundance in our solar system. Are we in danger of ...

Dante Lauretta, a professor at the University of Arizona and the OSIRIS-REx principal investigator, speaks at a press conference after a sample of Bennu had been transported to Earth. NASA/Keegan ...

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