The International Space Station and China's Tiangong Space Station will be visible for early risers. Here's how to make a ...

Welcome to the Tuesday Telescope. There is a little too much darkness in this world and not enough light—a little too much ...

Mercury reaches its point of greatest eastern elongation on Friday (July 4), presenting an excellent opportunity to spot the ...

In an extraordinary celestial coincidence, two "new stars" -scientifically known as novae -are currently visible to the naked ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

Exploding stars V462 Lupi and V572 Velorum are best seen from the Southern Hemisphere. One has been spotted from the United States.

The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...

The spiral galaxy NGC 6946 in Cygnus has seen 10 supernovae in the past century, earning it the nickname the Fireworks Galaxy ...

The highly inclined barred spiral M108 in Ursa Major is sometimes called the Surfboard Galaxy. It's not to be missed.

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...