When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

Dark matter, mysterious invisible stuff that makes up most of the mass of galaxies including our own Milky Way, is confounding scientists again, with new observations of distant galaxies conflicting ...

Ever noticed how life loves to throw curveballs just when you thought you had it all figured out? You did everything “right” — worked hard, stayed honest, helped people — and still, karma feels like ...

A lot of things are symmetrical – cats, dogs (bilateral symmetry), planets, stars (spherical symmetry), galaxies, pies (radial symmetry) and a lot more, except for the Universe. If you look really ...