D printing your own telescope is rewarding and customizable, but it rarely saves money once optics, materials, and time are ...

"We're going to do it in three years, and we're going to do it for a ridiculously low price," Pete Klupar, executive director ...

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 ...

Rochester Institute of Technology astrophysicist Jeyhan Kartaltepe will be one of the first scientists to use NASA’s James Webb Space Telescope soon after it launches in spring 2019. The Webb ...

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 ...

When you have been an amateur astronomer as long as I have (the sky caught my interest in 1956), you have seen a lot of celestial history. I like to think of it as having lived during the most amazing ...

The James Webb Space Telescope has been helping scientists explore the cosmos for years now, but there are still plenty of unknown facts about the device.

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 ...