Giant ground-based reflector telescopes do much of astronomy's heavy lifting, although the U.S.'s largest in Hawaii is not ...

View the planets and night skies from home - Heavens above! Your guide to the best telescopes for stargazing, created for all ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

Astronomers completed a 10-year project to assemble a complete portrait of the Andromeda galaxy. The result is a detailed panoramic image, the most comprehensive view of the galaxy ever captured.

The best smart telescopes make viewing the universe a breeze. Treat yourself to our top picks from Unistellar, Celestron, Vaonis and more. The best smart telescopes help beginner and experienced ...

Saturn’s rings, imaged here by NASA’s Cassini orbiter, are one of the solar system’s most reliably spectacular sights. But ...

Suni Williams steps outside the International Space Station for the first time since arriving in June on Boeing’s Starliner.

LIVE: Two @NASA_Astronauts, Nick Hague and Suni Williams, step outside of the @Space_Station to support station upgrades, ...

NASA astronaut Suni Williams is seen outside the International Space Station during the Jan. 16, 2025, spacewalk where she ...

An equatorial table is a device used to compensate for the Earth’s rotation, enabling telescopes to track celestial objects accurately. It aligns with the Earth’s axis, allowing the telescope ...