Euclid, a European space telescope, just captured 26 million galaxies to reveal the secrets of the dark universe.

Explore these orbiting pioneers and learn what they've discovered. 3 min read The Hubble Space Telescope was designed to free astronomers of a limitation that has plagued them since the days of ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But ...

But to a car-size telescope 26 million miles (41.8 million kilometers) from Earth, they are alive with light—infrared light, or heat rays. Since its launch in August 2003, says Robert Kennicutt ...

Help them make a telescope to explore this important microhabitat Cut one of the paper towel tubes lengthwise (all the way up the side). Tuck one edge of the cut side slightly under the other and ...

This radio astronomy telescope represents an unprecedented ... "It's a tough place to work," said Phil Puxley, of the National Science Foundation. "The air pressure there is almost 50 percent ...

They delved into the telescope's guts during long space walks and replaced parts that the original designers never thought they'd need to. Installation of a new power-control unit forced an ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

This story appears in the July 2009 issue of National Geographic magazine. When you start stargazing with a telescope, two experiences typically ensue. First, you are astonished by the view ...

NASA’s Webb telescope is rewriting the story of space and time NASA’s Webb telescope is rewriting the story of space and time These 5 asteroids pose the greatest risk to Earth These 5 ...

This story appears in the February 2017 issue of National Geographic magazine ... forming two “eyelids.” A telescope in Chile called the Atacama Large Millimeter/submillimeter Array, or ...