Several ongoing and future missions led or co-led by NASA exploring the cosmos could face serious changes if Congress ...

A new study suggests they may have a ghostly shadow—trailing dark matter spirals hovering above and below them. A team of ...

As a child in India, Subrahmanyan Chandrasekhar was captivated by the night sky. He often climbed to the roof of his family home, gazing at the stars and wondering about their origin and nature.

What began as a mathematical curiosity scorned by leading scientists has become the cornerstone of modern astrophysics, ...

Chandra, named in honor of the late Indian American astrophysicist Subrahmanyan Chandrasekhar, launched to space aboard the space shuttle Columbia on July 23, 1999. The crew, including STS-93 ...

The orbiting telescope launched aboard Space Shuttle Columbia and was named after astrophysicist Subrahmanyan Chandrasekhar. While originally only intended to be operational for five years ...

Black holes are the most extreme objects in the universe. These hyper-dense celestial phenomena exert gravitational forces so powerful that not even light can escape their pull, and time itself is ...

Years later, we glimpse Subrahmanyan Chandrasekhar of the Chandrasekhar limit, a way to identify the stars that might someday become black holes, doing his calculations by starlight on the deck of ...