The Tesseract was the Marvel Cinematic Universe's first MacGuffin, but its history quickly became convoluted. Here, we ...

Long-duration space missions are taking a toll on astronauts' vision, with microgravity causing structural and functional ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's ...

While the planets are technically always "aligned" along the same plane in our sky, seeing so many at once is a special ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Both will be visible with the unaided eye in the first couple of hours after dark while looking west, according to Space.com.

Amazon founder Jeff Bezos's space company blasts its first rocket into orbit in a challenge to Elon Musk. The mission was partially successful after the booster that propelled the rocket into ...

There are multiple programs, discount centers, and online retailers that can help reduce the cost of eye exams and eyeglasses. Share on Pinterest Roo Lewis/Getty Images If you’re among the many ...

Is the storage full on your iOS device? Here's how to figure out what's taking up the most space on your iPhone and iPad so you can decide what to delete. My title is Senior Features Writer ...

To provide your eyes with a little extra relief, we’ve rounded up some of the top editor-tested and shopper-reviewed under-eye patches that quickly brighten and de-puff and are worthy of any ...

The top vitamins for eye health are essential to keeping them healthy and your vision clear. Eating a balanced diet is the best way to stay healthy, but sometimes, you need a little help to meet ...