These are the best telescopes to view planets, stars and galaxies. Beginner and professional models available.

Go outside right now. What’s the farthest thing you can see? A tree? A bird? What about the Moon? It’s 250,000 miles away. The Sun is 400 times farther than that, at nearly 100 million miles (but ...

For the first time, scientists have used Earth-based telescopes to look back over 13 billion years to see how the first stars in the universe affect light emitted from the Big Bang. Using telescopes ...

To capture higher-definition and sharper images of cosmological objects, astronomers sometimes combine the data collected by several telescopes. This approach, known as long-baseline interferometry, ...

Space rarely gives up its secrets easily. For instance, what looks like a single ...

In January in Monterrey, Mexico, Iván Venzor was one of only a dozen people in the world to glimpse a potential Jupiter-sized planet crossing in front of a distant star. It happened too fast to see by ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Concept design for a rectangular space telescope, modeled after the Diffractive Interfero Coronagraph Exoplanet Resolver (DICER), a notional infrared space observatory, and the James Webb Space ...

Katelyn Eaman can appreciate the power of the sun better than most. The geology graduate student researches how Mars’ now-barren landscape was carved and transformed by ancient waterways. That water ...