With 12 seasons and 279 episodes to choose from, The Big Bang Theory star Johnny Galecki's five favorites are some of his ...

“He was very taken with the thought that no phenomenon becomes a true phenomena until it has been observed,” Wald told Salon ...

It feels like every other day now, new research emerges which manages to turn our understanding of the universe completely on ...

Galaxies like the Milky Way grow by merging with smaller galaxies over billions of years, unlike dwarf galaxies, which have long been thought to lack the heft to attract mass and grow in the same way.

Corporations are planning an assault on workers’ rights once Trump takes office. It's time for Democrats to fight at the state level. In over a dozen states the Democrats have the power ...