Cosmology is the one field in which researchers can—literally—witness the past. The cosmic background radiation, ancient light streaming toward us since the Big Bang, provides a pristine window onto the birth and evolution of the universe.

The 2020 Kavli Prize In Astrophysics is awarded to Andrew Fabian for his groundbreaking research in the field of observational X-ray astronomy, covering a wide range of topics from gas …

Stephen Wolfram joins Brian Greene to explore whether the ultimate theory of the universe might emerge from a computationally simple framework. This program is part of the Big Ideas series, …

Evolutionary paleogeneticist Beth Shapiro travels to the cold reaches of the world to find DNA samples of long extinct animals, such as mastodons and saber-toothed tigers. She hopes to learn …

In 1935, Albert Einstein and two colleagues published a landmark paper revealing that quantum mechanics allows widely separated objects to influence one another, even though nothing travels between them. Einstein called it spooky and rejected the idea, arguing instead that it exposed a major deficiency in the quantum theory.

In the year since it became fully operational, the James Webb Space Telescope has provided breathtaking new images of the cosmos that are confirming some of scientists’ predictions while challenging …