A puzzling — and huge — break in the geological record finally might be explained.
A new study shows our planet is much closer to the supermassive black hole at the galaxy's center than previously estimated.
An astrophysicist proposes new designs for stellar engines that can move a solar system.
You won't notice much of a difference unless you're north of the 55th parallel, though.
A new study by planetary scientists proposes a giant new space object which could have formed the Earth and the moon.