The Hubble law implies that the universe is expanding. NASA's Hubble Space Telescope, launched into low Earth orbit in 1990, has been a vital instrument for exploring the universe for over three ...

At least until Zephraim Cochrane invents the warp drive, our best shot is looking into the deep sky through telescopes. Here's how they work—and how it's not always just about optics.

The authors propose building 200 40-cm telescopes spaced 5 kilometers apart to create an occultation array 1,000 km wide. Since each telescope would have a slightly different vantage point ...

Astronomers using the James Webb Space Telescope have detected possible signs of gases released by volcanic activity on a distant exoplanet. Today, we know of more than 5,000 exoplanets ...

A do-it-yourself Galilean telescope makes an excellent and inexpensive starter telescope — or science fair project. When you purchase through links on our site, we may earn an affiliate commission.