Sign up for the Great Courses Plus and get a 14-day FREE trial: <a href=" You don’t want to pass this up, so go now!Imagine ...

The International Space Station - a blazing symbol of humanity’s destiny to move out across the cosmos - must be saved from ...

Starship is intended to eventually evolve into a fully reusable launch and landing system, designed for trips to the moon, ...

Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...

The best time to view the Taurid meteor shower is around midnight when the shower's radiant (the spot in the sky from which ...

Apollo 12 moon mission troubles in 1969, Vietnam War memorial dedicated in 1982, Berlin Wall dismantled in 1989, geese a nuisance in Delaware in 2003 ...

which makes measuring its speed a unique challenge. In 1676, Danish astronomer Ole Roemer chanced upon the first estimate for light's propagation while studying Io, Jupiter's innermost moon. By timing ...

This NASA/ESA Hubble Space Telescope image features NGC 1672, a barred spiral galaxy located 49 million light-years from ...

Finals and midterms are upon us, and I know I am personally getting sick of my typical study spots. I’ve noticed that it’s ...

The large, bright Taurid meteors are characterized by their vibrant explosions of color and extended trails, often visible ...

While the Southern Taurids are active between Sept. 23 and Dec. 8, the celestial light show will be most visible Monday and ...