[Hank Green] posted an interesting video about the first liquid mirror telescope from back in the 1850s. At the time, scientists were not impressed. But, these days, people are revisiting the idea.

[Hank Green] posted an interesting video about the first liquid mirror telescope from back in the 1850s. At the time, scientists were not impressed. But, these days, people are revisiting the idea.

Explore the night sky with the best telescopes to suit every budget and experience level, perfect for observing February's Snow Moon and spectacular planetary parade. February is a great time to ...

"I'm like a child let loose in a toy store." The fun should continue until the telescope runs out of the liquid helium that helps cool it, in about 2008. Early in the next decade, NASA plans to ...

New observations by the James Webb Space Telescope suggest that an icy moon around Uranus may have an underground liquid ocean. Ariel is one of 27 moons around Uranus, the seventh planet from the ...

One answer to the problem is the liquid mirror telescope, which uses a rotating dish of liquid metal that forms its own parabolic surface—no mirror grinding required. Elegant, no? We've already ...

The planet 51 Pegasi b is a long way from Prior Lake, 48 light years (several billion miles) to be exact. It orbits a fifth magnitude star, similar to our Sun, in the constellation Pegasus. It was ...

We've rounded up the best telescopes for kids. Is there a budding stargazer in your family? Maybe you're trying to cultivate a child's interest in our solar system? If you're looking for one of ...