Victor Glover and Christina Koch post-flight

Victor Glover and Christina Koch post-flight

Artemis II pilot Victor Glover (in orange, left) and mission specialist Christina Koch (in orange, right) are all smiles as they celebrate their successful mission around the Moon from the flight deck of USS John P. Murtha.

“One bad measurement” ruled out as Hubble tension explanation

“One bad measurement” ruled out as Hubble tension explanation

The distance ladder and the CMB give incompatible values for the expansion rate. A new study shows just how robust the Hubble tension is.

Study Finds Three Distinct Types of Black Hole Mergers

Study Finds Three Distinct Types of Black Hole Mergers

Gravitational-wave data from the LIGO-Virgo-KAGRA Collaboration reveals merging black holes fall into three subpopulations with different cosmic origins.

JWST May Have Finally Found the Universe's First Stars — And the Evidence Is Stronger Than Anything Before

JWST May Have Finally Found the Universe's First Stars — And the Evidence Is Stronger Than Anything Before

The James Webb Space Telescope has delivered the strongest observational evidence ever obtained for Population III stars — the theorized first generation of stars that lit up a dark universe in the early cosmos. The findings, built on independent confirmations from multiple research teams, center on a tiny companion object near one of the most distant galaxies ever observed, and they carry profound implications for our understanding of how the cosmos bootstrapped itself from primordial simplicity into the complexity we see today.

Astronomers Spot Strongest Signs of Universe's First Stars - Toledo Today

Astronomers Spot Strongest Signs of Universe's First Stars - Toledo Today

Astronomers have identified the strongest evidence to date for the existence of the universe's first generation of stars, known as Population III stars. Using data from the James Webb Space Telescope, researchers analyzed a distant galaxy and found candidates for these ancient stellar objects that have remained theoretical for decades.

NASA’s LRO found a new crater on the Moon…it’s 225 meters across and 43 meters deep. “According to predictions

NASA’s LRO found a new crater on the Moon…it’s 225 meters across and 43 meters deep. “According to predictions

NASA’s LRO found a new crater on the Moon…it’s 225 meters across and 43 meters deep. “According to predictions based on other lunar landmarks, a crater that big should form only once in 139 years.”

The Artemis II mission worked—but should we really keep returning to the moon?

The Artemis II mission worked—but should we really keep returning to the moon?

Artemis II’s safe return from lunar orbit sparks a debate over the costs, climate effects and long‑term value of going back to the moon

Over 150 mergers reveal three different black hole origin stories

Over 150 mergers reveal three different black hole origin stories

New findings suggest that a fraction of black hole collisions involve "recycled" objects from previous mergers.

Egypt fossil suggests larger North African role in human origins

Egypt fossil suggests larger North African role in human origins

A recent fossil find in Egypt suggests that human evolution may not be confined to East Africa, potentially rewriting our understanding of human origins.