Big Bang

Cosmology

Did time move slower right after the Big Bang?

Cosmology

Scientists seek to discover what came before the Big Bang

Cosmology

The ‘least crazy’ idea: Early dark energy could solve a cosmological conundrum

Cosmology

Giant cosmic bubble of galaxies thought to be relic from early universe

Cosmology, Galaxies

Measuring helium in distant galaxies may give physicists insight into why the universe exists