HD - NASA's Jet Propulsion Laboratory

On the second anniversary of NASA Curiosity on Mars, the rover navigates a sandy valley on its way to Mount Sharp

Venus and Jupiter at Dawn, Saturn and mars at dusk, Perseids are visible now through the 17th, peak will have most, but also a full moon washing out the faint ones.

The sparks that appear on the baseball-sized rock result from the laser of the ChemCam instrument on NASA's Curiosity Mars rover hitting the rock.

NASA's NEOWISE mission captured a series of infrared images of comet C/2012 K1 -- also referred to as comet Pan-STARRS -- as it swept across our skies in May 2014. This animation shows the progression of the comet across a field of stars -- and a more distant spiral galaxy, called NGC 3726, which appears as a blue oval.