NASA has selected six companies to design prototype deep-space habitats — a key piece of the effort to send astronauts on the long journey to the Red Planet, which NASA aims to do by the end of the 2030s.

Here's what to expect from US weather for the Perseid meteor shower, which peaks overnight tonight (Aug. 11-12).

Before Scott Kelly touched down after nearly a year on the space station, he helped kick off a year-long countdown to Super Bowl LI. Now on the ground, Kelly is set to hand off the flown football to the head of the Houston Super Bowl Host Committee.

Titan's canyons are generally less than 0.5 miles (0.8 kilometers) wide, but up to 1,870 feet (570 meters) deep and feature slopes that are 40 degrees steep, a new study suggests.

The online Slooh Community Observatory will host a live webcast Thursday (Aug. 11) at 8 p.m. EDT (0000 GMT on Aug. 12) showing the peak of the Perseid meteor shower, which they promise will be the "best meteor shower of 2016."

Here's what you need to know about the famous Perseid meteor shower, which will peak overnight from Aug. 11 to Aug. 12.

The Perseid meteor shower is an annual celestial event that evolved from Comet Swift-Tuttle. See the comet in this image captured in 1992 (when the comet last visited Earth) by Gerald Rhemann.

In the early evening on Aug. 11 and 12, look for a celestial summit between the moon, Mars and Saturn.

The 2016 Perseid meteor shower will peak late tonight, and if you can't watch it in person, a plethora of live webcasts have you covered.

A newly released video shows Perseid meteors recorded from July 26 through today (Aug. 11) by NASA's All Sky Fireball Network, a system of 15 cameras scattered throughout the country.