The early universe experienced a phase of rapid expansion, known as inflation. For decades, cosmologists assumed that this expansion was powered by a new entity in the universe, known as the inflaton.

A team of scientists has used X-ray and gamma-ray observations of some of the most distant objects in the Universe to better understand the nature of space and time. Their results set limits on the ...

Quantum gravity remains one of the foremost challenges in theoretical physics, seeking to reconcile the principles of quantum mechanics with the geometric understanding of spacetime envisaged by ...

(via PBS Space Time) Spacetime on its smallest scales is a seething ocean of black holes and wormholes flickering into and out of existence—or so many physicists think has to be the case. But why ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: koto_feja via Getty Images Physicists have developed a novel approach to solving one of ...

Want the latest space news? Choose a subscription option. Whether you're looking for the latest space exploration, business, government, education, technology, policy news, opinions and more, we've ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...

This is a really cool observation and constraining theory is also great, but it does get a little frustrating that we keep merely getting tiny upper-bounds on possible effects that theories predict, ...

NAKED singularities and cosmic censorship may sound like lurid terms from the tabloids, but in fact these phrases lie at the heart of a troubling question for modern cosmology: what happens when ...

We preselected all newsletters you had before unsubscribing.