Over the weekend, Saturn's gorgeous rings will nearly vanish from sight. No worries, they'll be back in a couple of weeks.

Scientists have developed an impossibly thin telescope lens that addresses a key astronomical challenge in a new study funded ...

Millions of people in the U.S. will be able to spot the partial solar eclipse on Saturday. Here's what to know in Tennessee.

"It is likely to be in the timeframe of late this calendar year or early next year for the next Starliner flight." ...