HD - NASA's Jet Propulsion Laboratory

Scientists using two giant, Earth-based radio telescopes bounced radar signals off passing asteroid 2011 UW158 to create images for this animation showing the rocky body's fast rotation.

The passing asteroid made its closest approach to Earth on July 19, 2015 at 7:37 a.m. PST (4:37 a.m. EST) at a distance of about 1.5 million miles (2.4 million kilometers, or 6 times the distance from Earth to the moon). The close proximity during the pass made 2011 UW158 one of the best asteroid flybys of 2015 for imaging from Earth using radar.

Mariner 4 was the first spacecraft to fly by Mars and send home close-up images. Find out how the mission changed the way we explore the Red Planet.

Road trip! This compilation of images from hazard-avoidance cameras on NASA's Mars Exploration Rover Opportunity between January 2004 and April 2015 shows the rover's-eye-view of the Martian marathon covering 26.2 miles(42.2 kilometers) from its landing location. A map of the rover's path is on the right.

Take a grand tour of the Milky Way this month - with binoculars!

Two miniature satellites will be hitching a ride to the Red Planet to get a front row seat for InSight's landing on Mars.

Could a liquid water ocean beneath the surface of Jupiter's moon Europa have the ingredients to support life? Here's how NASA's mission to Europa would find out.

This video shows the robot's-eye view from JPL's RoboSimian on the DARPA Robotics Challenge Finals course on June 5, 2015. Video speed is enhanced.

A new video animation of dwarf planet Ceres, based on images taken by NASA's Dawn spacecraft, provides dramatic flyover views of this heavily cratered, mysterious world. The images come from Dawn's first mapping orbit at Ceres, at an altitude of 8,400 mile (13,600 kilometers), as well as navigational images taken from 3,200 miles (5,100 kilometers) away. The images provided information for a three-dimensional terrain model. The vertical dimension has been exaggerated by a factor of two, and a star field has been added in the background.

Go behind the scenes at the DARPA Robotics Challenge Finals to see Team RoboSimian getting their robot ready for competition. Time-lapse video shows the set-up of the team garage and robotic hardware.

RoboSimian, a four-limbed disaster response robot under development at JPL, is ready to compete in the 2015 DARPA Robotics Challenge on June 5-6, 2015. You go buddy!