The nature of dark matter has puzzled astronomers since discovering that 85% of the universe's matter is invisible through ...

Giant filaments crisscross the universe, connecting galaxy clusters like superhighways between cities. Their shape and ...

WHY do we call the universe mysterious? Is it because we know so much about it or so little? The impression left by Sir James Jeans's fascinating book is that it is because the interpreta tion ...

Scientists test the famous physicist’s predictions by calculating the distortion of time and space. Why is the expansion of ...

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky ...

Astronomers have identified three ultra-massive galaxies -- nearly as massive as the Milky Way -- already in place within the first billion years after the Big Bang. This surprising discovery was made ...