Last year, astronomers detected a powerful burst of radio waves from within our galaxy. Researchers now say it came from NASA ...

Two of the universe’s most extreme objects—black holes and neutron stars—can spiral into cosmic collisions that crack crusts, ...

Universe's 'missing' matter found! "This is a unique opportunity to learn how the universe's first light emerged from the ...

High above the windswept Ross Ice Shelf, a helium balloon the size of a football stadium drifts in the polar twilight. Slung ...