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…

1 week ago

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…

3 weeks ago

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.

3 weeks ago

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,…

3 weeks ago

Even the Largest Structures in the Universe Have a Magnetic Field

The cosmic web is filled with magnetic fields, and we are starting to observe them at last.

4 weeks ago

Clouds of Carbon Dust Seen When the Universe was Less Than a Billion Years Old

A new study shows that carbonaeous dust grains existed much earlier than previously thought, which has significant implications for galactic…

4 weeks ago

Are Black Holes the Source of Dark Energy?

In a series of papers, an international team claims they've found the first observational evidence that supermassive black holes are…

1 month ago

When Neutron Stars Collide, the Explosion is Perfectly Spherical

Kilonova explosions are almost perfectly spherical, which could help us study cosmic expansion.

1 month ago

Could a Dark Energy Phase Change Relieve the Hubble Tension?

A new study suggests that the Hubble Constant could be resolved by the presence of a "New Early Dark Energy"…

1 month ago

Astronomers Make a New Map of all the Matter (and Dark Matter) in the Universe

There's a lot of matter in the Universe, but not all of it is visible to us. Matter is, essentially,…

1 month ago