With special filtered telescopes you can observe the sun safely without hurting your eyes.There's more to the sun than just a yellow ball. See for yourself what the sun's surface and atmosphere look like--93 million miles away.
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1/17/17:ALMA Starts Observing the Sun New images taken with the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have revealed otherwise invisible details of our Sun, including a new view of the dark, contorted centre of a sunspot that is nearly twice the diameter of the Earth. The images are the first ever made of the Sun with a facility where European Southern Observatory is a partner. The results are an important expansion of the range of observations that can be used to probe the physics of our nearest star.
1/6/17: NASA Study Finds Solar Storms Could Spark Soils at Moon's Poles. Powerful solar storms can charge up the soil in frigid, permanently shadowed regions near the lunar poles, and may possibly produce "sparks" that could vaporize and melt the soil, perhaps as much as meteoroid impacts, according to NASA-funded research.
11/6/16: PPPL physicists find clue to formation of magnetic fields around stars and galaxies. An enduring astronomical mystery is how stars and galaxies acquire their magnetic fields. Physicists have now found a clue to the answer in the collective behavior of small magnetic disturbances.
11/14/16: NASA finds unusual origins of high-energy electrons. High above the surface, Earth's magnetic field constantly deflects incoming supersonic particles from the sun. These particles are disturbed in regions just outside of Earth's magnetic field - and some are reflected into a turbulent region called the foreshock. New observations from NASA's THEMIS mission show that this turbulent region can accelerate electrons up to speeds approaching the speed of light.
10/10/16: Researchers discover effect of rare solar wind on Earth's radiation belts. Researchers from the University of New Hampshire have captured unique measurements of the Van Allen radiation belts, which circle the Earth, during an extremely rare solar wind event. The findings, which have never been reported before, may be helpful in protecting orbiting telecommunication and navigational satellites, and possibly future astronauts, by helping to more accurately predict space conditions near Earth, as well as around more remote planets. Read full study
9/23/16: NASA-Funded Sounding Rocket Solves One Cosmic Mystery, Reveals Another. In the last century, humans realized that space is filled with types of light we can’t see – from infrared signals released by hot stars and galaxies, to the cosmic microwave background that comes from every corner of the universe. Some of this invisible light that fills space takes the form of X-rays, the source of which has been hotly contended over the past few decades.
9/19/16: The Dynamic Duo: RAVE complements Gaia. The new data release of the RAdial Velocity Experiment (RAVE) is the fifth spectroscopic release of a survey of stars in the southern celestial hemisphere. It contains radial velocities for 520,781 spectra of 457,588 unique stars that were observed over ten years.
9/14/16:Hinode: 10th Anniversary of Its Launch. The solar observing satellite “Hinode” will celebrate the 10th anniversary of its launch on 23 September (Japan standard time). This 3-minutes movie presents the solar atmosphere fulfilled with active phenomena much more than ever imagined, captured with the Hinode telescopes.
9/1/16: Images From Sun’s Edge Reveal Origins of Solar Wind. Ever since the 1950s discovery of the solar wind -- the constant flow of charged particles from the Sun -- there's been a stark disconnect between this outpouring and the sun itself. The details of the transition from defined rays in the corona, the sun's upper atmosphere, to the solar wind have been, until now, a mystery.
8/24/16: Solar activity has a direct impact on Earth’s cloud cover. Solar variations affect the abundance of clouds in our atmosphere, a new study lead by DTU Space suggests. Large eruptions on the surface of the Sun can temporarily shield Earth from so-called cosmic rays which now appear to affect cloud formation.
8/15/16: Van Allen probes catch rare glimpse of supercharged radiation belt. On March 17, 2015, an interplanetary shock – a shockwave created by the driving force of a coronal mass ejection, or CME, from the sun – struck the outermost radiation belt, triggering the greatest geomagnetic storm of the preceding decade. NASA's Van Allen Probes were there to watch it.
Credits: NASA's Goddard Space Flight Center; Genna Duberstein, producer.
8/23/16: Return of Stereo B. On Aug. 21, 2016, NASA reestablished contact with the sun-watching STEREO-B spacecraft, after communications were lost in October 2014. STEREO-B is one of two spacecraft of the Solar Terrestrial Relations Observatory mission, which over the course of their lifetime have viewed the sun from vantage points such as the ones shown here, on the other side of the sun from Earth.