Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole ...

By Will Dunham WASHINGTON, Jan 26 (Reuters) - Using observations from the James Webb Space Telescope in a patch of the sky ...

Dark energy is still one of the greatest cosmic mysteries. For all the time, money and telescopes that humanity has used to ...

An international collaboration of scientists from Durham University in the UK, NASA’s Jet Propulsion Laboratory, and École ...

By studying ripples in space-time, physicists are testing wheather dark energy might stem from hidden dimensions, elusive ...

While the James Webb Space Telescope provides a window into the ancient universe, SkyMapper focuses on the present by ...

Fragments of energy may be the fundamental building blocks of the universe. The theory combines the ideas of particles and waves into a concentration of energy that flows throughout space and time.

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. About a century ago, scientists were struggling to ...

How many electrons are there in the Universe? One bold theory suggests that there could only be one, although this theory has ...