The planetarium turns 100 this year. What came before the giant domes, with imagery of galaxies, asteroids and meteors ...

A rare alignment between Earth and Saturn will make the gas giant’s rings appear so thin that they’ll be nearly invisible.

In the constellation Cygnus, a bright knot of stars seems to adorn one edge of a nearly perfect 20-light-year-wide circle, ...

It started with light that had traveled 13 billion years, across the expanse of space from a time when the universe was less than one billion years old. That faint glow emanated from a galaxy known as ...

A baby galaxy is throwing one heck of a tantrum, and it's shaking up our understanding of the earliest galaxies.

The European Space Agency's Euclid mission—designed to map the geometry of the dark universe with unprecedented ...

Astronomers are uncovering new ways to study the universe’s first stars, objects too distant and faint to observe directly, by examining the ancient 21-centimeter radio signal left behind by hydrogen ...

A team of researchers has confirmed stars ring loud and clear in a "key" that will harmonize well with the science goals and ...

Stargazing is best done flat on your back — and this inflatable lounger makes it incredibly easy. The Lamzac fills with air in seconds: just scoop air in swiftly through the open end of the lounger, ...