![]() Image is 1.63 arcmin (about 75 light years) across. X-ray: (NASA/CXC/Penn State/S.Park et al.) Optical: NASA/STScI/UIUC/Y.H.Chu & R.Williams et al These preliminary results suggest that the original explosion was caused by the collapse of a massive star. Using the new Chandra data, the age of N49 - as it appears in the image - is thought to be about 5,000 years and the energy of the explosion is estimated to be about twice that of an average supernova. Optical data from the Hubble Space Telescope (yellow and purple) shows bright filaments where the shock wave generated by the supernova is interacting with the densest regions in nearby clouds of cool, molecular gas. NASA images of Earth show the coming joys of space tourism CNN Wallpaper of Space Great Wall of China Related wallpaper galleries Find the wallpapers youre. Another possible bullet is located on the opposite side of the remnant, but it is harder to see in the image because it overlaps with the bright emission - described below - from the shock-cloud interaction. In other words, it is possible that the bright X-ray source actually lies beyond the remnant and is projected along the line of sight. However, the new Chandra data also shows that the bright source is more obscured by gas than expected if it really lies inside the supernova remnant. This case is strengthened by the apparent alignment between the bullet's path and the bright X-ray source. ![]() Since neutron stars are often created in supernova explosions, an association between SGRs and supernova remnants is not unexpected. A leading explanation for these objects is that they are neutron stars with extremely powerful magnetic fields. This bright source may be a so-called soft gamma ray repeater (SGR), a source that emits bursts of gamma rays and X-rays. The bullet is traveling at a high speed of about 5 million miles an hour away from a bright point source in the upper left part of N49. The detection of this bullet shows that the explosion that destroyed the star was highly asymmetric. This bullet can be seen in the bottom right hand corner of the image (roll your mouse over the image above or click here) and is rich in silicon, sulphur and neon. In order to detect this bullet, a team of researchers led by Sangwook Park of Penn State University used Chandra to observe N49 for over 30 hours. A new long observation from NASA's Chandra X-ray Observatory, shown in blue, reveals evidence for a bullet-shaped object being blown out of a debris field left over from an exploded star. The instrument was positioned in the payload bay of Space Shuttle Discovery, measured Earth’s cloud cover, and tracked various particles in the atmosphere.This beautiful composite image shows N49, the aftermath of a supernova explosion in the Large Magellanic Cloud. For example, the LITE ( Lidar In-Space Technology Experiment) was used in 1994 as the first LIDAR system for atmospheric studies from space. The CALIPSO’s High Spectral Resolution Lidar (HSRL) provided the first global observations of the North Atlantic phytoplankton bloom.Įarly NASA experiments proved the value of orbiting LIDAR. The Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) has been orbiting for more than 15 years. From pictures taken by the Hubble telescope, to views of our vast and dense universe, our range of NASA wallpaper is a brilliant antidote to the flowery wallpaper that is popular today. ![]() The Daqi-1 isn’t the only satellite using LIDAR to monitor Earth. Our NASA photo wallpaper is perfect for the budding astronomer or astronaut. Lidar uses laser beams for mapping, and it’s believed that these lasers illuminated the sky over Hawaii in January. Daqi-1 also measures nitrogen dioxide, sulfur dioxide, ozone, and fine particle pollution. The satellite has LIDAR (laser imaging, detection, and ranging) for detecting atmospheric aerosols and carbon dioxide. But a week later, NAOJ revised its theory, saying that based on the trajectory, it was unlikely the lights were coming from NASA’s satellite after all. A week after the incident, experts at the National Astronomical Observatory of Japan (NAOJ), which co-owns the camera, claimed on Twitter that the green light originated from radar on the NASA satellite ICESat-2. Watch live broadcasts from NASA Television and NASAs social media channels, and a schedule of upcoming live events including news briefings, launches and landings.
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