Cosmology
White Dwarf Measured Before it Exploded as a Supernova
Using isotope measurements of a supernova remnant, astronomers have calculated the core density of a white dwarf before it exploded.
Is the Hubble constant not…Constant?
Cosmologists have been struggling to understand an apparent tension in their measurements of the present-day expansion rate of the universe,…
Dark Energy Survey is out. 29 Papers Covering 226 Million Galaxies Across 7 Billion Light-Years of Space
Cosmology is now stranger to large scale surveys. The discipline prides itself on data collection, and when the data it…
It Could be Possible to see Gravitational Wave Lenses
Can waves of gravity be lensed by gravity? A recent study looks for lensed gravitational waves.
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…
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…
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.…
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…
Away From the Light Pollution of the Inner Solar System, New Horizons was Able to see how Dark the Universe Really is
Just how dark is the universe, anyway? It's a pretty hard thing to measure when we're sitting this close to…
In Theory, Supermassive Black Holes Could get Even More Supermassive
A new study proposes that the upper mass limit for black holes could be a million times larger than we…