The observable universe is vast, extending about 93 billion light-years across, containing galaxies, stars, planets, and all ...

What lies beyond the universe? For centuries, scientists have pondered this question, and recent groundbreaking discoveries ...

Road Trip 2010: CNET reporter Daniel Terdiman gets a behind-the-scenes look at the most complex planetarium show on Earth, and the complex astrovisualization that has been ten years in the making.

It's true: there are some 2 trillion galaxies within the observable Universe, and 97% of them are already beyond our reach, even if we left today at the speed of light. But even though we cannot ...

The further we look into space, the further back in time we go and the last thing we see is left-overs from the Big Bang. This pattern in the sky could give us clues to the Universe next door.

That depends on what you mean by the edge of the universe. Because the speed of light is finite, as we look farther and farther out in space, we look farther and farther back in time — even when ...

The first-known observations of matter–antimatter asymmetry in a decaying composite subatomic particle that belongs to the ...

The further we look into space, the further back in time we go and the last thing we see is left-overs from the Big Bang. This pattern in the sky could give us clues to the Universe next door.