New telescope instruments now reveal distant galaxies in detail, reshaping how astronomers map dark matter, star formation, ...

The earliest acoustic vibrations in the cosmos weren’t exactly sound – they travelled at half the speed of light and there ...

Have you ever found something unexpected in your hamburger? Astronomers using the Atacama Large Millimeter/submillimeter ...

The Standard Model of our universe doesn’t match the evidence, in part because of dark energy, a ghostly force pushing the ...

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

A new theoretical model is prompting physicists to reconsider one of the most fundamental ideas in science: infinity.

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

The discovery of an extremely metal-poor galaxy, observed thanks to the James Webb Space Telescope, opens a fissure in the ...

At first, there was nothing dramatic about the galaxy. ESO 130 G012 sits relatively close by cosmic standards, about 55 ...

The largest structures in the universe are galaxy clusters—groups of galaxies held together by gravity. Their developmental ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.