Europa was one of four moons discovered on Jan. 7, 1610, by astronomer Galileo Galilei. Speaking of Galileo, this photo was ...

Nearly 415 years ago to the day astronomer Galileo Galilei discovered the moons surrounding Jupiter looking through his homemade telescope.

Stephen Hawking was born exactly 300 years after Galileo Galilei died. Their death and birth, exactly 300 years apart on ...

This property of telescopes allows you to observe objects much fainter than you can see with your eyes alone. Galileo said it best when he declared that telescopes "revealed the invisible." ...

The Lawrence Livermore National Laboratory is working on a petawatt-class thulium laser that is said to be 10 times more ...

A grand spiral galaxy takes center stage in a new image from the Hubble Space Telescope. The galaxy, known as NGC 5643, is located roughly 40 million light-years from Earth in the constellation Lupus.

Overall, this telescope is a great choice for beginning your celestial journey. It's affordable, lightweight and easy to navigate — and Celestron goes the extra mile to assist in your ...

Day 16 of the 2024 Space Telescope Advent Calendar: a new view of a distant spiral. This image from the James Webb Space Telescope shows spiral galaxy NGC 628 in a new light. The galaxy ...

In new images from NASA's James Webb Space Telescope, the galaxy appears as a long, warped arc teaming with star clusters that resemble a swarm of lightning bugs on a warm summer night.

Even small asteroids can do a lot of damage—and new research shows the James Webb Space Telescope is adept at spotting the tiniest of space rocks. A time-lapse of images from NASA’s James Webb ...

JWST has proven to be ideal for the discovery, researchers say, thanks to the telescope's sharp infrared eyes that detect the asteroids' thermal emissions. These infrared emissions are much ...

In the years since, researchers using the Hubble Space Telescope have observed that the current expansion rate, called the Hubble constant, is faster than what standard cosmology models estimate ...