universe

The motions of satellites in galaxy groups tell us that such groupings, and therefore possibly the universe, are younger than what standard cosmology tells us.

We now know how far away some galaxies are in the iconic "deep field" image from NASA's James Webb Space Telescope. A Canadian instrument is revealing more about how the universe changed over time.

We all know the universe contains a vast array of elements, ranging from light gases, such as helium, to heavy metals, like lead. But where did all of the elements come from?

Why is space so dark despite all of the stars in the universe? — Nikhil, age 15, New Delhi

Binary black holes are believed to inevitably spiral together, but dark energy and the expanding universe could help them maintain a safe distance and mimic a single black hole.

Distant galaxies that existed a few hundred million years after the Big Bang are brighter than expected in JWST images because they were experiencing bursts of intense star formation.

The new study marks the beginning of detailed and direct pursuit of the gravitational nature of antimatter, which remains puzzlingly scarce in the universe.

Ashley Zelinskie calls herself the scientific artistic translator, taking our understanding of the universe and showing us how to interpret it.

NASA has highlighted a new set of vibrant cosmic images, each one painted by the observatories that help us see what our eyes cannot.

A big telescope on the moon could peer deeper into the universe than the famed James Webb Telescope and perhaps even help find life on exoplanets, scientists say.