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 ...

Our beginner-friendly guide helps you get familiar with the moon, Jupiter, nebulas and galaxies this Christmas.

That’s right—at more than 1,000 community libraries across the country, you can check out a telescope thanks to the Library Telescope Program. So whether you have a budding astronomer at home or are ...

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 ...

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.

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 ...

ROCKWOOD, Texas – During the day, this patch of land in sparsely populated central Texas is not remarkable. Eleven buildings, nearly identical, look like bland, oversize backyard sheds. Several large ...

Most materials in our world shrink in volume when cooled and expand when heated. Humans have known this for some time, and have built our civilization with that in mind. Yet, as we seek to expand ...

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 ...