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ScienceDaily: Space & Time News |
First-ever views of elusive energy explosion Posted: 15 Nov 2018 11:49 AM PST Researchers have captured a difficult-to-view singular event involving 'magnetic reconnection' -- the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion -- in the Earth's magnetotail, the magnetic environment that trails behind the planet. |
Trans-galactic streamers feeding most luminous galaxy in the universe Posted: 15 Nov 2018 11:48 AM PST ALMA data show the most luminous galaxy in the universe has been caught in the act of stripping away nearly half the mass from at least three of its smaller neighbors. |
What did birds and insects do during the 2017 solar eclipse? Posted: 15 Nov 2018 08:53 AM PST In August of 2017, millions peered through protective eyewear at the solar eclipse -- the first total eclipse visible in the continental United States in nearly 40 years. During the event, researchers watched radar to observe the behavior of birds and insects. |
NASA learns more about interstellar visitor 'Oumuamua Posted: 15 Nov 2018 06:33 AM PST The first known interstellar object to visit our solar system -- named 'Oumuamua -- was detected in October 2017 by Hawaii's Pan-STARRS 1 telescope. But it was too faint for NASA's Spitzer Space Telescope to detect when it looked more than two months after the object's closest approach to Earth in early September. That 'non-detection' puts a new limit on how large the strange object can be, astronomers now report. |
Earth's magnetic field measured using artificial stars at 90 kilometers altitude Posted: 14 Nov 2018 07:40 AM PST In 2011, researchers proposed that artificial guide stars could be used to measure the Earth's magnetic field in the mesosphere. An international group of scientists has recently managed to do this with a high degree of precision. The technique may also help to identify magnetic structures in the solid Earth's lithosphere, to monitor space weather, and to measure electrical currents in the part of the atmosphere called ionosphere. |
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