Of all the posited answers, experts say the Dark Forest hypothesis seems less likely to be correct. It’s possible that ...

The Lockheed C-5M Super Galaxy is the largest military transport aircraft in the United States Air Force, although not the largest in the world. That title goes to the Antonov An-124 Ruslan, after the ...

Other than being a ‘Trojan Horse’ alien spaceship set to release probes to study our planet, or crashing into Earth, neither ...

Eugene Shoemaker, the founder of astrogeology, dedicated his life to understanding planetary formation through impacts. His ...

Interstellar comet 3I/ATLAS is passing safely through our solar system. Learn about its discovery, its distant path, and why ...

In 1978, Ride and five other women became the first group of female astronauts in the U.S. A new book by a longtime curator ...

Plasma ejections from young stars may offer valuable insights into the Sun’s early history. Most of the time, we hardly notice it from Earth, but the Sun is constantly hurling vast clouds of charged ...

In fact, previous studies have revealed that young Sun-like stars, proxies of our Sun in its youth, frequently produce ...

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be ...

On May 20, 1990, the Hubble Space Telescope sent its first image to Earth. This photo turned out to be 50% sharper than ...

The sun is frequently ejecting huge masses of plasma, called coronal mass ejections (CMEs), into space. They often occur ...

I/ATLAS puts the Planetary Defense Network on watch. NASA and ESA say no threat as IAWN drills tracking, while Harvard’s Avi Loeb raises an alien-origin idea.