A small world 4.5 times Earth's mass is circling its star in the wrong direction. Normally there's a bully nearby to blame.

In a new study, astronomers detail observations of what could be the first known exosatellite - a natural object orbiting a ...

NASA’s Chandra has uncovered 84 unusual cosmic objects producing extremely soft X-rays and intense ultraviolet radiation.

For more than 30 years, astronomers have been searching for a particular kind of black hole. They knew it should exist somewhere in our galaxy, but they just couldn’t find one. Now, they’ve finally ...

Astronomers have found, for the first time, a microblazar in our own galaxy. The object is a miniature version of what happens when a supermassive black hole produces an energetic jet and shoots right ...

Light exhibits some of the strangest properties in our cosmos. It manifests as both a wave and a particle, and its speed in a vacuum is invariant. While physicists now fully grasp the way light ...

Understanding the origin, acceleration and propagation of high-energy cosmic rays has been a century-old mystery in astrophysics. Recently, joint observations from China's Einstein Probe (EP) ...

Dark stars are candidates for the first stars that formed in the Universe, 200 million years after the Big Bang, and powered ...

Hitaishi Chillara, a 17-year-old student from Leander, Texas, has received a $50,000 Davidson Fellows Scholarship for ...

According to Lucia Rondini, they are ‘fizzy’ with quantum objects, popping in and out of existence all the time.

NASA's Roman Space Telescope activates its 300-megapixel infrared camera, revealing its first test image and future plans for ...

An Archaeology of Connections Lost,” the Grammy nominated musician brings together deeply personal and universal concerns, grounding them in questions of memory, power, identity ...