Two spacecraft engineers stand with three generations of Mars rovers developed at NASA's JPL, Pasadena, Ca. Front and center is a flight spare of Sojourner, left is a working sibling to Spirit and Opportunity, right is test rover Curiosity.
The Mighty Mars Rovers by Elizabeth Rusch. Take a trip to Mars with two small robots – Spirit and Opportunity. Designed to collect data for just three months, the two robots far exceeded NASA’s expectations, and Opportunity is still going strong. J RUS
NASA's Mars Rover 2020 mission will borrow its basic design from the Mars rover Curiosity currently exploring the Red Planet. The Curiosity rover, which landed on Mars in is about the size of a Mini Cooper car.
The Whirlpool Galaxy, a classic spiral galaxy, is pictured in this NASA handout photo. At only 30 million light years distant and fully 60 thousand light years across, also known as NGC is one of the brightest and most picturesque galaxies on the sky.