A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful colors.

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Hubble’s latest image of the Tarantula Nebula highlights cosmic dust, interstellar gas, and active star formation.

Is it a bird? Is it a plane? No, it's super Neptune! But this Superman-mimicking planet is not blasting through space on its own. It is being dragged along by its parent star.

The supermassive black hole at the center of the Milky Way appears to be having a party—and it is weird, wild and wonderful.

How do you cool down a phoenix? I don't mean the mythological birds of flame and rebirth, but rather a cosmic namesake with a fittingly fiery nature.

Atomic nuclei exhibit multiple energy scales simultaneously—ranging from hundreds down to fractions of a megaelectronvolt. A new study demonstrates that these drastically different scales can be ...

John Kounios is a professor of psychological and brain sciences at Drexel University. He is co-author of The Eureka Factor: Aha Moments, Creative Insight, and the Brain (Random House, 2015) and ...

Grunsfeld took off the Hubble Space Telescope. The astronauts replaced the old solar array with a new, stronger one (SA3). They also did some tasks to get ready for the mission's other spacewalks. The ...