Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: On the campus ...

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 ...

Most distant celestial objects, such as galaxies and nebulae, generally do not exhibit perceived color through telescopes due to their low surface brightness, which is insufficient to activate the ...

This video will make you think twice before you look at the sun. Astronomer Mark Thompson took a pig's eyeball and held it up to the lens of an 18 millimeter telescope pointed directly at the sun. The ...