Cosmology

A new Method Simulates the Universe 1000 Times Faster

Cosmologists love universe simulations.  Even models covering hundreds of millions of light years can be useful for understanding fundamental aspects…

1 week ago

11-Sigma Detection of Dark Energy Comes From Measuring Over a Million Extremely Distant Galaxies

A new study confirms the existence of dark energy with stunning accuracy.

3 weeks ago

A new Technique Could use Quasars to Directly Measure the Expansion Rate of the Universe

The evolution of cosmic expansion could be measured by a new method using intensity correlation speckles.

3 weeks ago

The Oldest Stars Help Tell us how big the Universe is

Astronomers are struggling to understand the discrepancies when measuring the expansion rate of the universe with different methods, and are…

2 months ago

New Supercomputer Simulations Will Help pin Down Inflation

In the very earliest moments of the big bang, the universe experienced a period of rapid expansion known as inflation.…

2 months ago

Simulations of the Universe are Getting Better and Better at Matching Reality

How can you possibly use simulations to reconstruct the history of the entire universe using only a small sample of…

2 months ago

Astronomers set a new Record and Find the Farthest Galaxy. Its Light Took 13.4 Billion Years to Reach us

Since time immemorial, philosophers and scholars have contemplated the beginning of time and even tried to determine when all things…

4 months ago

Astronomers Improve Their Distance Scale for the Universe. Unfortunately, it Doesn't Resolve the Crisis in Cosmology

Astronomers have made the cosmic distant ladder more accurate, but that has only made the mystery of cosmic expansion even…

4 months ago

Asteroids Crashing Into Dead Stars are Helping Explain Where the Universe’s Missing Lithium Went

What happened to all the lithium? The question has stumped astronomers for decades. While cosmologists have successfully predicted the abundance…

5 months ago

Polarized light from the cosmic background hints at new physics

Distant light from the big bang is twisted as it travels to us. This could mean dark matter is more…

6 months ago