The atmosphere of the sun is composed of several layers, mainly the photosphere, the chromosphere and the corona. It's in these outer layers that the sun's energy, which has bubbled up from the sun's interior layers, is detected as sunlight. The lowest layer of the sun's atmosphere is the photosphere . It is about 300 miles (500 kilometers) thick. This layer is where the sun's energy is released as light.
Space! You’ll never get to take a deep breath and smell the roses in Earth’s orbit. The distinct lack of air there means you’d die a gruesome death sans space helmet , probably without smelling a thing.
There's a new bond in town, and this secret agent works best in extreme situations. The bond, of the chemical variety, occurs in the presence of very strong magnetic fields, such as those found around ultra-dense white dwarf stars . Its discovery not only demonstrates the existence of an unfamiliar and exotic type of chemistry, it may also give insight into the behaviours of these mysterious stellar bodies.
Hoy en día, en muchos de los noticiarios e informativos que podemos ver en la TV se producen conexiones en directo con corresponsales que están situados por todo el mundo y, seguramente, nos hayamos dado cuenta que cuando el presentador les pregunta algo, pasa un pequeño intervalo de tiempo antes que el corresponsal conteste y comience a hablar.
When the Telstar 1 satellite successfully launched 50 years ago, the world got a little smaller.
Spectators on Earth weren't the only ones to spot an impressive solar eclipse Sunday (May 20). Two satellites managed to snap amazing images and videos of the solar eclipse from space. The European Space Agency's Proba-2 microsatellite and Japan's Hinode sun observatory had ring-side seats to Sunday's so-called "ring of fire" solar eclipse . In fact, both satellites were able to capture multiple views of the eclipse as they orbited Earth.
Print This Article Surprising Discovery of a Rare "Emerald-Cut" Galaxy March 19, 2012 An international team of astronomers—from Australia, Germany, Switzerland, and Finland—has discovered a rare, rectangular-shaped galaxy (LEDA 074886) that has a striking resemblance to an emerald-cut diamond. While using the Subaru Prime Focus Camera (Suprime-Cam) to look for globular clusters of stars swarming around NGC 1407, a bright, giant galaxy in the Constellation Eridanus and 70 million light years from Earth, the researchers discovered an unusually shaped dwarf galaxy toward the edge of their image. Professor Alister Graham (Swinburne University of Technology, Australia), lead author of the paper describing the research, said, "It's one of those things that just makes you smile because it shouldn't exist, or rather, you don't expect it to exist."
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The Sun is made up of layers of material, like a baseball or rubber band ball. The photosphere is the lowest layer of the solar atmosphere. It is essentially the solar "surface" that we see when we look at the Sun in "white" (i.e. regular, or visible) light. When we observe sunspots and faculae (bright little cloud-like features) we are observing them in the photosphere.
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The saying that beauty is in the eye of the beholder means that what we see is subject to our perspective.
Space :: Web Exclusives :: September 20, 2011 :: :: Email :: Print One mystery solves another: dark matter explains the puzzling shape and environs of the Milky Way
Poor little Pluto. Five years ago, after a lengthy, contentious debate among astronomers, the International Astronomical Union announced its new criteria for what it takes to qualify as a planet.
Cassini Chronicles the Life and Times of Saturn's Giant Storm
In 2002, Thad Roberts was a 25-year-old intern at NASA's Johnson Space Center in Houston, Texas. Like so many young lovers, he had promised his girlfriend the moon. Uniquely, he decided to actually deliver on the promise, and stole 17 pounds of moon rocks from the space agency that had been brought back to Earth by Apollo astronauts.