Dark matter is more than five times as abundant as all the visible matter in the universe. So why can't we see any of it?

“The way I think about it is, there are loads and loads of places that are affordable,” she says ... Valencia combines “the best of Old World Europe” with living costs that are “ridiculously ...

New research from the SAGA Survey, comparing the Milky Way with 101 similar galaxies, unveils how our galaxy differs ...

Like a celestial parade across the cosmos, five bright planets are lighting up the night sky and visible with the naked eye ...

This week, explore decoded words from charred ancient scrolls, meet heroic frog daddies, see Grand Canyon-size lunar features, and more. The Super Bowl is one of the most-watched sporting events ...

The United Nations has organized four world conferences on women. These took place in Mexico City in 1975, Copenhagen in 1980, Nairobi in 1985 and Beijing in 1995. The last was followed by a series of ...