The well-known Horsehead Nebula has gained iconic status since its discovery over a century ago. The nebula was photographed in 2013 to mark the 23rd anniversary of the launch of Hubble Space Telescope aboard the space shuttle Discovery. The Horsehead Nebula makes up part of a much larger complex in the constellation Orion, the Orion Molecular Cloud, lying about 1,500 light-years away.
Home. This is the highest resolution image of Earth ever made, 121 megapixels. That’s an amazing 0.62 miles per pixel. It was taken by Russia’s latest weather satellite, the Electro-L, which is orbiting Earth on a geostationary orbit 36,000 kilometers above the equator, sending photographs of the entire planet every 30 minutes.
A beautiful new image of two colliding galaxies has been released by NASA's Great Observatories. The Antennae galaxies, located about 62 million light-years from Earth, are shown in this composite image from the Chandra X-ray Observatory (blue), the Hubble Space Telescope (gold and brown), and the Spitzer Space Telescope (red).
A Primordial Quasar - The nearest quasars are now known to be supermassive black holes in the centers of galaxies. Gas and dust that falls toward a quasar glows brightly, sometimes outglowing the entire home galaxy. The quasars that formed in the first billion years of the universe are more mysterious, though, with even the nature of the surrounding gas still unknown.