At the heart of the Milky Way, just 27,000 light-years from Earth, there is a supermassive black hole with a mass of more ...

The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe ...

A new research effort involving simulations of Milky-Way-like galaxies shows that the mysterious, unexplained extra gamma ...

Here are the best shows for a variety of kids from someone who's worked in the animation and kid's entertainment industry.

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

Physicists show knotted cosmic strings may have dominated the early universe before collapsing to create matter—a theory ...

UChicago-led study analyzes massive galaxy clusters mapped by the Dark Energy Survey, offers new way to probe cosmic laws ...

How could the principle of "radical mundanity" proposed by the Fermi paradox help explain why humans haven't found evidence ...

Ghost particles' can zoom through you without a trace. Scientists are getting to the bottom of this cosmic mystery ...

Asteroids, comets, and clouds contain complex organic molecules that form in space and might have kickstarted life on Earth ...

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be changing over time. Dark energy, the mysterious force causing the universe to ...