Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

To estimate how close a supernova would have to be to cause serious damage to Earth, we must first look at a supernova's ...

Espinoza is heading up the implementation of a massive Webb telescope study of rocky worlds outside the solar system, ...

It must have cleared all other celestial bodies, except its own moons, from its orbit.

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