NASA engineers are working on a new family of space robots that can roll, climb, and use artificial intelligence to navigate around obstacles in rough terrains on other worlds. Meet the family, here.

Exoplanet Gliese 3470 b fits nicely in size between our solar system's Earth and planet Neptune. Known as a "mini-Neptune," it likely has a rocky core beneath a deep, crushing, hydrogen-helium atmosphere. The analysis of its atmosphere is a first for one of these mid-sized worlds.

"We knew the Milky Way had a bar, like other barred spiral galaxies. But we only had indirect indications from the motions of stars and gas. This is the first time we see the galactic bar in 3D space, based on geometric measurements of stellar distances."

After many years of searching, astronomers have finally found what appears to be a circumplanetary disk - that is, a disk of gas and dust - surrounding a young exoplanet. Evidence suggests that moons may be forming there.

With virtually no atmosphere on the moon - and, therefore, no wind - flags that fly freely on Earth would hang like limp cloth in the lunar environment. So Apollo 11 engineers had to rethink flagpole design entirely.

Don't believe the moon landings were real? Go ahead. Watch this.

The technologies behind weather forecasting, GPS and even smartphones can trace their origins to the race to the moon.

The subsurface ocean of Saturn's moon Enceladus seems possibly habitable in many ways. Now a new study has determined it's the right age to support life, too.

Join online as leading space scientists discuss the legacy of Apollo 11 during the mission's 50th anniversary this week.

The total solar eclipse of August 22, 1142, may have coincided with the birth of the Iroquois Confederacy, oldest democracy in North America and possibly on Earth.