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

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy ...

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 ...

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

This hypothesis is not new. It was given the affectionate nickname of Big Crunch, and says that the accelerated expansion of ...

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 first thing we know about the universe is that it’s really, really big,” says cosmologist Michael Turner, who has been contemplating this reality for more than four decades now. “And because the ...

Massive stars do not live long. There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the width of the sun. If it were placed in our ...

We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if ...