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A NEW EYE on COASTS Celebrating 2 Award-Winning Years of Eos Magazine and Eos.Org
VOL. 98 NO. 1 JAN 2017 Antarctic Trek for Space Weather Partnering Academia and the Military Earth & Space Science News Whisker-like New Mineral Discovered A NEW EYE ON COASTS Celebrating 2 Award-Winning Years of Eos Magazine and Eos.org Nearly 1 Million Online Readers An International Readership Spanning 196 Countries Multiple Awards from Association TRENDS and Association Media & Publishing VOL. 97 NO. 23 1 DEC 2016 VOL. 96 NO. 4 1 MAR 2015 VOL. 96 NO. 13 15 JUL 2015 Earth & Space Science News Earth & Space Science News HowHowHow Ready ReadyReady is Isis Los Los Angeles Angeles LEARNING Sonar Data forfor thethe NextNext “ GEOSCIENCE from the Water Column “Big OneOne”? Tracking Global ? BY DOING Landslide Hazards ”? Students Launch High-Altitude Balloons Monitoring Colombia’s GEOSCIENCE Slumbering Volcanoes Seismic Hazard Assessment Lab Simulates Science Fares Well in U.S. Solar Eruptions Gender Parity Proposed Federal Budget Magnetic Islands Caterpillar-Like Motion in Space of the Greenland Ice Sheet New for 2017: You’ll receive Eos magazine once a month, and now you’ll enjoy More Content: More features, news, and Research Spotlights More Depth: Special issues on important and emerging topics The satisfaction of a reduced carbon footprint And, as always, you can read articles free online as soon as they are published on Eos.org or by adding Eos.org to mobile apps like SmartNews and Flipboard. Earth & Space Science News Contents JANUARY 2017 PROJECT UPDATE VOLUME 98, ISSUE 1 14 Space Weather from a Southern Point of View A recently completed instrument array monitors geospace from the Antarctic end of Earth’s magnetic field lines. -
NASA Calls for Suggestions to Rename Future Telescope Mission Pg 8
National Aeronautics and Space Administration www.nasa.gov Volume 4, Issue 3 February 2008 View NASA Calls for Suggestions to Rename Future Telescope Mission Pg 8 Dr. King Ceremony Reflects on Keeping the Dream Alive Pg 5 NASA’s Deep Impact Begins Hunt for Alien Worlds Pg 9 Goddard 02 Hubble ’s In-Flight Guidance from Table of Contents the Ground Goddard Updates By Robert Garner Hubble ’s In-Flight Guidance from the Ground - 2 Construction Update #1 on NASA Goddard’s New The Hubble Space Telescope has logged millions of miles and taken Science Building - 4 thousands of pictures since its launch in 1990, thanks in part to the Dr. King Ceremony Reflects on Keeping the Dream around-the-clock efforts of a small group of dedicated engineers and Alive - 5 Update 46th Goddard Symposium—Premiere AAS Event - 6 technicians at NASA’s Goddard Space Flight Center in Greenbelt, Md. The Innovative Partnerships Program Quiz: Headquarter’s IPP Seed Fund - 7 “Hubble is a truly amazing telescope, but as sophisticated as it is, it can’t function NASA Calls for Suggestions to Rename Future completely on its own,” said Hubble Operations Manager Mike Prior at Goddard. Telescope Mission - 8 “That’s why technicians provide around-the-clock support in the Mission Operations NASA’s Deep Impact Begins Hunt for Alien Worlds - 9 Room Command Center.” GLAST’s Delta II Rocket’s First Stage Arrives in Cape Canaveral - 10 It’s up to the Mission Operations staff to upload the commands to Hubble that tell it where to point and when, what sensing instruments to use, and when to send data Goddard Family back to Earth. -
A Brief History of Magnetospheric Physics Before the Spaceflight Era
A BRIEF HISTORY OF MAGNETOSPHERIC PHYSICS BEFORE THE SPACEFLIGHT ERA David P. Stern Laboratoryfor ExtraterrestrialPhysics NASAGoddard Space Flight Center Greenbelt,Maryland Abstract.This review traces early resea/ch on the Earth's aurora, plasma cloud particles required some way of magneticenvironment, covering the period when only penetratingthe "Chapman-Ferrarocavity": Alfv•n (1939) ground:based0bservationswerepossible. Observations of invoked an eleCtric field, but his ideas met resistance. The magneticstorms (1724) and of perturbationsassociated picture grew more complicated with observationsof with the aurora (1741) suggestedthat those phenomena comets(1943, 1951) which suggesteda fast "solarwind" originatedoutside the Earth; correlationof the solarcycle emanatingfrom the Sun's coronaat all times. This flow (1851)with magnetic activity (1852) pointed to theSun's was explainedby Parker's theory (1958), and the perma- involvement.The discovei-yof •solarflares (1859) and nent cavity which it producedaround the Earth was later growingevidence for their associationwith large storms named the "magnetosphere"(1959). As early as 1905, led Birkeland (1900) to proposesolar electronstreams as Birkeland had proposedthat the large magneticperturba- thecause. Though laboratory experiments provided some tions of the polar aurora refleCteda "polar" type of support;the idea ran into theoreticaldifficulties and was magneticstorm whose electric currents descended into the replacedby Chapmanand Ferraro's notion of solarplasma upper atmosphere;that idea, however, was resisted for clouds (1930). Magnetic storms were first attributed more than 50 years. By the time of the International (1911)to a "ringcurrent" of high-energyparticles circling GeophysicalYear (1957-1958), when the first artificial the Earth, but later work (1957) reCOgnizedthat low- satelliteswere launched, most of the importantfeatures of energy particlesundergoing guiding center drifts could the magnetospherehad been glimpsed, but detailed have the same effect. -
Kristian Birkeland (1867 - 1917) the Almost Forgotten Scientist and Father of the Sun-Earth Connection
Kristian Birkeland (1867 - 1917) the Almost Forgotten Scientist and Father of the Sun-Earth Connection PÅL BREKKE Norwegian Space Centre ISWI Workshop, Boston College, 31 July - 4 August 2017 The Young Kristian Birkeland Olaf Kristian Birkeland was born 13 December 1967. Early on Birkeland was interested in magnetism and already as a schoolboy he had bought his own magnet with his own money. He used the magnet for many surprising experiments and practical jokes - often irritating his teachers Birkeland’s Early Career Birkeland became a certificate teacher at the University of Kristiania at only 23 years old and graduated with top grades. In 1896 Birkeland was elected into the Norwegian Academy of Sciences at only 28 years old. Two years later he became a professor in Physics - quite unusual at that young age at that time (was called «the boy professor»). Photograph of Kristian Birkeland on Karl Johans Gate, (Oslo) in 1895 taken by student Carl Størmer, using a concealed camera. (source: UiO) Birkeland - Electromagnetic Waves Birkeland did laboratory experiments on electromagnetic waves in 1890 and first publication came in 1892 with some ground breaking results. In 1893 he focused on the energy transported by these waves. In 1895 Birkeland published his most important theoretical paper. He provided the first general solution of Maxwell’s equations for homogeneous isotropic media. First page of Birkeland's 1895 paper where he derived a general solution to Maxwell’s equations Birkeland - Cathode Rays In 1895 he began pioneer studies of cathode rays, a stream of electrons in a vacuum tube that occurs through high voltage passing between negative and positive charged electrodes. -