For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

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

The Hubble Space Telescope, a cornerstone of modern astronomy, has been providing breathtaking images and invaluable data for ...

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...

The team explores one of the greatest discoveries of modern astronomy - that our universe is expanding - and the new ...

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

Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

The James Webb Space Telescope, launched in 2022, has discovered something that may shatter current theories about the universe's early development.

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The first stars in the universe formed out of pristine hydrogen and helium clouds, in the first few hundred million years ...