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

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

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

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

An extremely early Type II supernova explosion, named after the Titan goddess of dawn in Greek mythology, occurred just 1 ...

Artist Ashley Zelinskie is "Wandering through Time and Space”' with ESA's Webb team. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The James ...

For more than a century, physics has treated space and time as the smooth stage on which the universe unfolds, a flexible fabric that bends but never breaks. A new wave of theories is now challenging ...

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 ...

Data from NASA's James Webb Space Telescope has revealed dozens of small galaxies that played a starring role in a cosmic makeover that transformed the early universe into the one we know today. White ...

NASA’s Roman Space Telescope is set to embark on a deep-sky survey that could capture nearly 100,000 cosmic explosions, shedding light on everything from dark energy to black hole physics. Its ...

Cosmologists are quietly confronting a possibility that would have sounded absurd a generation ago: the standard picture of a ...

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