Passing the Orbit of Neptune: New Horizons crossed the orbit of Neptune at 10:04 p.m. EDT on August 25, 2014, with the spacecraft nearly 2.75 billion miles (4.4 billion kilometers) from Earth. New Horizons, which launched in January 2006, reached Neptune’s orbit distance in record time.
Image: Solar sails offer new orbital mechanics for satellites
This image of the debris disk around SDSS1228+1040 made from observations taken over twelve years. The application of Doppler Tomography results in an image of the velocities within the disk, which has an 'inside-out' structure, gas closer to the white dwarf appears further. The two dashed circles illustrated 0.64 and 0.2 times the radius of the Sun. Credit: University of Warwick
GPN-2000-000440.jpg 452×559 pixels
The crosshairs show the whereabouts of Comet Siding Spring. The bright object in the image is Mars! Image via Virtual Telescope Project.
Image: Eclipse season begins for NASA’s SDO
X-Men Inspired Gambit Plush
Chaotic Beauty Hubble Space Telescope Images, NASA Space Mission Image