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Topic: Heliophysics
The X-ray burst, the brightest seen by NICER so far, came from an object named SAX J1808.4-3658, or J1808 for short. The observations reveal many phenomena that have never been seen together in a single burst. In addition, the subsiding fireball briefly brightened again for reasons astronomers cannot yet explain. ![]() Illustration depicting a Type I X-ray burst. The explosion first blows off the hydrogen layer, which expands and ultimately dissipates. Then rising radiation builds to the point where it blows off the helium layer, which overtakes the expanding hydrogen. Some of the X-rays emitted in the blast scatter off of the accretion disk. The fireball then quickly cools, and the helium settles back onto the surface. (NASA’s Goddard Space Flight Center/Chris Smith (USRA)) «Read the rest of this article» Sections: Technology | No Comments
Three NASA Missions to explore our Solar System capture first imagesWritten by Lina Tran
On September 17th, 2018, TESS — the Transiting Exoplanet Survey Satellite — shared its first science observations. Later in the week, the latest two missions to join NASA’s heliophysics fleet returned first light data: Parker Solar Probe, humanity’s first mission to “touch” the Sun, and GOLD, a mission that studies the dynamic boundary between Earth and space. ![]() Download high-resolution versions of this and other TESS “first light” images from the Scientific Visualization Studio at NASA’s Goddard Space Flight Center. (NASA/MIT/TESS) «Read the rest of this article» Sections: Technology | No Comments
NASA invites people to submit their names to be included on First Mission to Travel through the Sun’s AtmosphereNASA Headquarters
NASA is inviting people around the world to submit their names online to be placed on a microchip aboard NASA’s historic Parker Solar Probe mission launching in summer 2018. The mission will travel through the Sun’s atmosphere, facing brutal heat and radiation conditions — and your name will go along for the ride. “This probe will journey to a region humanity has never explored before,” said Thomas Zurbuchen, the associate administrator for the Science Mission Directorate at NASA Headquarters in Washington. “This mission will answer questions scientists have sought to uncover for more than six decades.” ![]() Illustration of the Parker Solar Probe spacecraft approaching the Sun. (Johns Hopkins University Applied Physics Laboratory) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Astrophysics Explorers Program to explore Exotic Astronomical ObjectsWritten by Felicia Chou
Objects such as black holes can heat surrounding gases to more than a million degrees. The high-energy X-ray radiation from this gas can be polarized – vibrating in a particular direction. «Read the rest of this article» Sections: Technology | 1 Comment »
NASA Spacecraft Watches Solar Storm Engulf Earth
“The movie sent chills down my spine,” says Craig DeForest of the Southwest Research Institute in Boulder, Colorado. “It shows a CME swelling into an enormous wall of plasma and then washing over the tiny blue speck of Earth where we live. I felt very small.” http://www.youtube.com/watch?v=1GCokx7Dr4A «Read the rest of this article» Sections: Technology | No Comments
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