Cosmology
Has JWST Finally Found the First Stars in the Universe?
New observations from JWST hint at pockets of new gas in the halo of more evolved galaxies, where these first-generation…
It Might Take Space Telescopes to Finally Resolve the Crisis in Cosmology
Gravitational wave (GW) observatories have been a great addition to cosmologists' arsenal in the lack decade. With their first effective…
A Brief History of the Discovery of Cosmic Voids
At first the sum total of large, orderly structure in the Universe appeared to arrive in two categories. There were…
Astronomers Have a New Way to Measure the Expansion of the Universe
A new method of measuring cosmic expansion uses multiple observations of a supernova in a lensed galaxy.
JWST Fails to Disprove the Big Bang
The James Webb Space Telescope has allowed astronomers to see deeper into cosmic history than ever before, but it doesn't…
The First Light in the Universe Helps Build a Dark Matter Map
The Atacama Cosmology Telescope (ACT) collaboration used years of cosmic microwave background data to create a new map of Dark…
Prelude to a Supernova: The James Webb Captures a Rare Wolf-Rayet Star
Massive stars are sprinters. It might seem counterintuitive that stars 100 or 200 times more massive than our Sun could…
The Universe May Have Started with a Dark Big Bang
The Big Bang may have not been alone. The appearance of all the particles and radiation in the universe may…
It Would Take Hubble 85 Years to Match What Nancy Grace Roman Will See in 63 Days
A NASA-led team of researchers created a simulation that demonstrates what the Nancy Grace Roman Space Telescope will see.
The James Webb Is Getting Closer to Finding What Ionized the Universe
Astronomers have determined that so-called "leaky" galaxies may have responsible for triggering the last great transformational epoch in our universe,…