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... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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... Spiral Eddies On Planet Earth . ... Credit: STS 41G Crew , NASA Explanation: Can you identify this wispy stellar nebula ? How many light-years from Earth did you say? ... Prior to STS 41G these eddies were thought to be rare but are now understood to be a significant dynamic feature of ocean currents. ... Publications with keywords: Earth - ocean - spiral eddy . Publications with words: Earth - ocean - spiral eddy . ... Earth at Twilight . ... Pangea Ultima: Earth in 250 Million Years . ...

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Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Greening the Earth Using Space Resources? by Greg Matloff . ... Lecture Series 2010-2011 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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... For a timeline of the exploration of the magnetic environment of the Earth, Sun and Planets, see here . ... Galileo Galilei (1564-1642) builds the first astronomical telescope and observes for the first time craters on the Moon, satellites around Jupiter, and the way Venus goes through phases like the Moon (crescent, etc.) ... 17 December--First successful flight by the Wright brothers at Kitty Hawk, North Carolina. ... 16 March--Goddard launches his first liquid-fuel rocket. ...

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... 2001 February 4 . Welcome to Planet Earth . Credit: Apollo 17 Crew , NASA . Explanation: Welcome to Planet Earth , the third planet from a star named the Sun . The Earth is shaped like a sphere and composed mostly of rock . ... Earth has a single large Moon that is about 1/4 of its diameter and, from the planet's surface, is seen to have almost exactly the same angular size as the Sun . ... Please enjoy your stay on Planet Earth. ... About APOD | ... NASA Technical Rep.: ...

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... 4/15/2003 4 Flagship Science Themes: Dark Energy, Dark Matter, the Early Universe, Exoplanets & Life Dark energy: · Map the expansion history · Look for changes in"cosmic pressure" Dark matter · Map its distribution · Search for plausible candidates (lab?) ... 200 "SNAP" 2000 t(yr) 4 1 2 w(%) 25 10 5 (w) . 4/15/2003 1 yr HST with ACS: >200 SN Ia 6 Dark Energy Dark energy: Phase 1: confirm with SN Ia (HST, SNAP) Phase 2: distinguish (wx = -1) or changing wx > -1 Phase 3: what is this stuff? ...

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... Jay Apt (Ph.D.) . NASA Astronaut (Former) . ... PUBLICATIONS: Dr. Apt shared his images and knowledge in the publication Earth in Orbit : NASA Astronauts Photograph the Earth , written in conjunction with NASA scientists Michael Helfert and Justin Wilkinson and published by the National Geographic Society. ... From 1976 to 1980 he was a staff member of the Center for Earth & Planetary Physics, Harvard University, supporting NASA s Pioneer Venus Mission by making temperature maps of Venus from Mt. ...

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... SEARCH ASP SITE: Match ALL words Match ANY word . ... Women in Astronomy . ... Science Fiction with Good Astronomy . ... Dramatic, complex history and future of the battle between dark matter and regular matter life-forms in the universe. ... 1996, Ace)  Complex hard-science novel by a Canadian amateur astronomer with intriguing ideas about dark matter and even dark matter life forms. back to topic list . ... The Milky Way becomes an active galaxy, but life on Earth is saved by a higher intelligence...

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For the 2004/2005 summer vacation program the ATNF received almost 200 applications and accepted six students. ... Four of the students were based in Sydney, and two at the Parkes Observatory. ... Nadia wanted to play with a telescope; Joris was looking for an entry into real astronomy after completing his masters in radio astronomy in Sweden; Jamil was keen to network. ... Figure 1: ATNF 2004/2005 summer vacation students. Back row: Peter Hansen, Nadia Davidson, Jamil Zaman, Joris Verbiest. ...

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... Your main research interests concern neutral hydrogen. ... That means that there must be enormous quantities of gas lying around, waiting for the chance to collapse under its own weight into lumps and form stars and galaxies. If we could actually observe this gas, as it moves around and assembles itself into lumps, we would be directly observing the process of galaxy formation. ... Optical astronomers seem to think that they can observe galaxy formation by taking optical images. ... In galaxies. ...

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The Earth. ... The middle raiding of the Earth is 6371,032 km, the pole 6356,777 km equatorial - 6378,160 km. The Earth surface area is 510,2 mln km^2, 70,8% of which is the World ocean. ... According to the modern cosmogonical views the Earth was formed 4,6 - 4,7 billions years ago from the protoplanet cloud captured by the Sun. ... The Earth is conditionally divided into 3 parts: a bark a cloak and a core (in the centre). The external layer - the bark is 35 km thick. ... Above the Earth. ...

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... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

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... Future seminars . P a s t seminars . Seminar council . Radiometric chronometers and time scales for the Galaxy, early Solar system, and terrestrial planets " . I. Tolstikhin ( Geological Institute, Kola Science Center ) . ... The earliest objects of the Solar system, refractory Ca-Al-rich inclusions (CAI) in chondritic meteorites, were probably formed in the innermost Solar nebula from a material composed by solar gas + fully vaporized dust. ...

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