Pale Blue Dot, Voyager 1 image
This unique narrow-angle color image is of the Earth, dubbed 'Pale Blue Dot', is a part of the first ever 'portrait' of the solar system taken by Voyager 1. The spacecraft acquired a total of 60 frames for a mosaic of the solar system from a distance of more than 4 billion miles from Earth and about 32 degrees above the ecliptic. From Voyager's great distance Earth is a mere point of light, less than the size of a picture element even in the narrow-angle camera. Earth was a crescent only 0.12 pixel in size. Coincidentally, Earth lies right in the center of one of the scattered light rays resulting from taking the image so close to the sun. This blown-up image of the Earth was taken through three color filters -- violet, blue and green -- and recombined to produce the color image. The background features in the image are artifacts resulting from the magnification.
© NASA/SCIENCE PHOTO LIBRARY
Quantised orbits of the planets
Quantum orbits of the planets. Conceptual computer artwork showing the planets of the solar system on a model of atomic orbitals. This represents the theory that the orbits of the planets were determined by similar physical principles to those governing the orbits of electrons. Electrons can only occupy distinct energy levels around an atom, rather than having the capability to be anywhere. These quantum levels are determined by the electron's energy. The theory that similar effects occur at the solar system scale is controversial and not widely accepted, as the orbits can be explained by well-understood gravitational theory.
© MEHAU KULYK/SCIENCE PHOTO LIBRARY
Fall Colors at Oxbow Bend, Grand Teton NP, Wyoming
Fall colors and Mount Moran reflection at Oxbow Bend in Autumn at Grand Teton National Park in Wyoming, United States. Taken September 2012. tetons, usa, no people, autumn, wyoming, horizontal, yellow, mount, morning, tranquil scene, reflection, fall, blue, mountain, moran, national park, scenic, oxbow bend, grand teton, water, tranquility, peak, nature, landscape, fall colors, reflections, copy space, vacation, travel, photography, majestic, majesty, light, oxbow, reflection, mt, fall, early, beauty, moran, tourism, water, vacation, bend, famous landmark, clear sky
© Matt Anderson Photography