Cosmology

An Enormous Cosmological Simulation Wraps Up, Recreating Even More of the Universe

There's an old joke among astronomy students about a question on the final exam for a cosmology class. It goes…

1 year ago

Carbon-Based Molecules Seen Just a Billion Years After the Big Bang

The more astronomers look at the early Universe, the more discoveries they make. Some of those finds change what they…

1 year ago

The Universe Could Be Twice As Old if Light is Tired and Physical Constants Change

A new paper argues that the universe is 26.7 billion years old. But the model only works by assuming tired…

1 year ago

Soar Past Thousands of Galaxies in the Early Universe in Thrilling 3D

Want to visit the most distant galaxy in the early Universe? Now you can via a fantastic visualization created from…

1 year ago

JWST Sees the Most Distant Active Supermassive Black Hole

As astronomers push our views of the Universe further back in time, their telescopes keep uncovering surprises. That's the case…

1 year ago

The Early Universe Ran in Slow Motion

One of Einstein's predictions is that we should see time moving at different rates at different ages of the Universe.…

1 year ago

ESA's Euclid Mission is Off to Explore the Dark Universe

The Euclid space telescope, the ESA's next-generation astrophysics mission, was successfully launched to space!

1 year ago

James Webb is a GO for Cycle 2 Observations!

The observation programs for Cycle 2 of the James Webb Space Telescope have just been announced, and they are a…

1 year ago

Gravitational Waves Can Be Gravitationally Lensed, and This Could Provide Another Way to Measure the Expansion of the Universe

Astronomers can never have enough ways to measure the expansion in the Universe, from nearby stars to distant quasars. A…

1 year ago

JWST Sees the Beginning of the Cosmic Web

The Cosmic Web is the large-scale structure of the Universe. If you could watch our cosmos unfold from the Big…

1 year ago