This view from NASA's Fermi Gamma-ray Space Telescope is the deepest and best-resolved portrait of the gamma-ray sky to date. The image shows how the sky appears at energies more than 150 million times greater than that of visible light. Among the signatures of bright pulsars and active galaxies is something familiar -- a faint path traced by the sun.
Hubble Witnesses Asteroid’s Mysterious Disintegration – NASA Science
Universe is expanding faster than physics can explain. Astronomers have calculated the most precise measurement of how fast the Universe is expanding and perhaps only dark physics can explain it. Cathal O'Connell reports.
The layers of Earth's upper atmosphere, the ionosphere, and magnetosphere, form a closely-paired, interacting system. Swarm is contributing to a better understanding of near-Earth electric current systems and processes as shown in this graphic
A bright light source and/or speckled background such as the sun or moon is necessary for visualizing aerodynamic flow phenomena generated by aircraft or other objects passing between the observers camera and the backdrop. This patent-pending method made possible by improved image processing technology is called Background-Oriented Schlieren using Celestial Objects or BOSCO. Flow visualization is one of the fundamental tools of aeronautics research and schlieren photography has been used ...