In 1609, people observed the moon up close for the first time. East Germans consider the Italian scholar Galileo Galilei to be the father of telescope astronomy. However, a little-known British ...

In a landmark observation by a team of international researchers, NASA's Juno spacecraft has, for the first time, clearly ...

At the turn of the 21 st century, astrophysicists theorized that the Sun was headed toward a deep solar minimum, but a new ...

The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

Galileo saw it first, but this time astronomers had a better view of what is going on with the sun and found a reason why ...

Io, Europa and Ganymede had already shown their footprints through earlier observations. But Callisto, the farthest Galilean ...

Greetings, stargazers. Saturday is named for the prominent figure in Roman mythology. In addition to stargazing, this month should be great for Saturn-gazing. To ancient astronomers, Saturn was one ...

He shared the prize for the detection of gravitational waves—a milestone compared with Galileo’s invention of the telescope.

For the past decade, gravitational wave astronomy has opened our eyes to amazing cosmic phenomena thanks to LIGO, the Laser ...

Looking up at the night sky, the stars resemble grains of salt scattered on a dark cloth, seemingly within reach yet ...

Plus, catch Saturn and Neptune at their brightest; spy the "string of pearls" galaxy; and a close encounter of the moon and Jupiter.