The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from ...

If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and ...

The universe may not expand forever as scientists once believed. According to new calculations by Cornell physicist Henry Tye, the cosmos is approaching the midpoint of its 33-billion-year life and ...

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've ...

If you think a galaxy is big, compare it to the size of the Universe: it’s just a tiny dot which, together with a huge number ...

Biggest vs smallest - how do we measure up in the grand scheme of the universe? Explore the fascinating scales of existence, from quantum particles to the observable universe’s edge. A journey into ...

Here’s what you’ll learn when you read this story: A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in time, before the Big ...

What is the meaning of life? Even the best of us couldn't hope to answer that question in a Universe Today article. But there ...