Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and more.

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

In fact, the Euclid Consortium, the international group managing the European Space Agency's Euclid space telescope, just ...

However, the diameter of the observable universe is said to be over 900 billion light-years, right? Oh yes, the Beijing ...

The Big Bang Theory remains the most accepted explanation for how the universe began. This documentary explores the science, ...

Modern cosmology reveals a universe expanding uniformly without a spatial center or edge. The Big Bang wasn't a localized ...

Astronomers using the Webb Telescope may have found a new type of object: cold, glowing black hole stars from the early ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.

The key test passed by sPHENIX to prove it is ready to measure the properties of quark-gluon plasma is called a "standard candle" in particle physics. This isn't to be confused with Type 1a supernovas ...