Dark matter is hypothesized to outweigh "ordinary matter" in the universe by a factor of five. That means all the stuff we ...

TENNESSEE, USA — Today: Mostly sunny, warm and breezy. Scattered showers possible late. Highs in the upper 70s to near 80 degrees. Tonight: Lows in the lower 50s tonight. Tuesday: Becoming ...

The oldest naked eye star yet found still provides stellar theorists with key data on the earliest epochs of our Milky Way.