Welcome to the age of precision cosmology, a scientific era in which astronomers and physicists have measured almost everything about our universe—except for its deepest mysteries: dark matter and ...

In fact, the Euclid Consortium, the international group managing the European Space Agency's Euclid space telescope, just ...

Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if ...

From our tiny part of space, it can be hard to image exactly how much is out there beyond the reaches of our solar system. But in reality, our Earth is just a tiny part of our solar system, itself ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Why didn’t the universe annihilate itself moments ...

Astronomers using the Webb Telescope may have found a new type of object: cold, glowing black hole stars from the early ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

Our understanding of cosmology hinges on how well we know our own local universe, which remains poorly mapped and poorly ...