... 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 . ...

A team of scientists believes they have discovered a chain of impact craters in the central African country of Chad that suggests ancient Earth may have been hit by a large, fragmented comet or asteroid similar to the Shoemaker-Levy 9 comet that slammed into Jupiter in 1994. The craters were discovered in radar images of the Earth taken by the Spaceborne Imaging Radar C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) that flew on the Space Shuttle Endeavour in April and October of 1994. ...

Chain of Impact Craters Suggested by Spaceborne Radar Images . ... A team of scientists believes they have discovered a chain of impact craters in the central African country of Chad that suggests ancient Earth may have been hit by a large, fragmented comet or asteroid similar to the Shoemaker-Levy 9 comet that slammed into Jupiter in 1994. ... The Spaceborne Imaging Radar project is managed by the Jet Propulsion Laboratory for NASA's Office of Mission to Planet Earth, Washington, DC. ...

... 6.09.1996 . ... Credit Copyright: The Clementine Project Explanation: What is the largest known impact crater in the Solar System? ... In general, the rocky terrestrial planets and moons are scarred and battered from frequent repeated bombardment by large objects during our Solar System's early years. ... Publications with keywords: impact crater . Publications with words: impact crater . ... 3D Barringer Meteorite Crater . ... Manicouagan Impact Crater on Earth . Barringer Crater on Earth . ...

... February 3, 1996 . A Huge Impact Crater on Mars . Credit: NASA , Viking , USGS . ... The impact crater Schiparelli near the center of the above image was likely caused by a collision with an object the size of an asteroid . Also evident in this full face mosaic of Mars are numerous craters from many other impacts with smaller objects over billions of years. ... The frost forms because temperatures can drop as low as -140 degrees Celsius on Mars . ... About APOD | ... NASA Technical Rep.: ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

... Sternberg State Astronomical Institute, 119899, Moscow, Russia . ... 50_Kozlova_Shevchenko.pdf - 212KB . A.A. Berezhnoy (1), O.R. Baransky (2), K.I. Churyumov (2), V.V. Kleshchenok (2), E.A. Kozlova (1), V. Mangano (3), V.O. Ponomarenko (2), Yu.V. Pakhomov (4), V.V. Shevchenko (1), yu. ... Berezhnoy A.A., Kozlova E.A., Shevchenko V.V. в сборнике 36th Annual Lunar and Planetary Science Conference, серия Lunar and Planetary Institute Science Conference Abstracts, том 36, с. 1061 тезисы . ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Information on impact craters here on Earth. ... Listed Since July 15, 1998 . ... Web Site . ... Additional Information . Web . www.astronomy.net . About Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

... The Astronomical Data Analysis Software and Systems (ADASS) conference is held each year at a different hosting astronomical institution. The conference provides a forum for scientists and programmers concerned with algorithms, software and software systems employed in the acquisition, reduction, analysis, and dissemination of astronomical data. ... The 26th annual ADASS conference will be held from October 16th to 20th, 2016 at the Stazione Marittima Conference Centre , Trieste, Italy. ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2010 > The impact of Herschel surveys on ALMA Early Science. Garching, 16-19 November 2010 . ... ALMA . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Science in Garching . ... The workshop is designed to explore the powerful combination between Herschel and ALMA, taking advantage of the Herschel's first results to best exploit the ALMA Early Science call for proposals expected towards the end of 2010. ...

... Science with the Hubble Space Telescope - III , October 11-14, 2010, Palazzo Cavelli-Franchetti, Venice, Italy . ... 41st ESLAB Symposium: The Impact of HST on European Astronomy , 29 May - 1 June, ESTEC, Noordwijk, The Netherlands . ... 2006 : The NEON Observing schools in 2006 . ... The Second NEON Archive Observing School, ESO, Germany, 30 August - 9 September . 2005 : The ESO/ESA/IAU Conference Communicating Astronomy with the Public , 14-17 June, ESO HQ, Garching . ...

... Carefully measure the diameter of the craters formed by the impact without disturbing the sand. ... Crater diameter increases with increasing mass. ... Without disturbing the sand, carefully measure the crater diameter. ... Did you measure any difference in the diameters of the craters? Yes, as velocity increases, so does crater diameter. ... Impact cratering. ... Impact craters can be demonstrated with younger or less advanced students using mud instead of sand and ball bearings. ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

... HST . ... Hubble Heritage Project . ... Science Blog . Events . ... First Detection of the White Dwarf Cooling Sequence of the Galactic bulge Annalisa Calamida (Space Telescope Science Institute) . LEGUS: Tracing Star Formation Across Galaxies Daniela Calzetti (University of Massachusetts) . ... Beyond JWST HST 3.0: Galaxy Birth to Another Earth Garth Illingworth (Space Telescope Science Institute) . ... Galaxy Formation and Evolution: Hubble?s Legacy Rachel Somerville (Rutgers University) . ...

... About meteorites . ... Meteoritic data . Impact Crater Smerdyachee . ... Based on Smerdyachee's depth, near circularity, and its mounded wall, and analysis by N.A. Fillin of nearby Roshal, Russia, the Estonian scientists Yu.V. Krestlane and K.H. Mella proposed in 1987 that Smerdyachee Lake is a meteorite crater. ... In 2002, the Laboratory of Meteoritics of the Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences explored this mysterious lake. ...

ASTRONOMY IN UKRAINE - 2000 AND BEYOND . ... Kyiv, Ukraine, 5-8 June 2000 . ... The primary objective of the conference is to consider the integration of astronomical research in Ukraine into the international astronomy. ... VLBI for Astronomy and Geodynamics Convenors: Kees van't Klooster (The Netherlands), Leonid M. Litvinenko (Ukraine), Chopo Ma (USA). ... Planetary Astronomy Convenors: Teodor Kostiuk (USA), Robert Nelson (USA), Yuri Shkuratov (Ukraine). ... The "general" registration fee: 100 USD. ...

... Conferences . ... Borysenko S.A. Investigation of fragmentation of Comet Machholz 2 (in Ukrainian) . ... Borysenko S.A. Some pecularities of Comet Machholz 2 fragmentation. 5th Open Young Scientists' Conference on Astronomy and Space Physics, April 27-30, 1998, Kyiv Borysenko S.A. Polarimetry of comet C/1995 O1 Hale-Bopp. ... 6th Open Young Scientists' Conference on Astronomy and Space Physics, April 27-30, 1999, Kyiv Borysenko S.A. First results of dynamical spectroscopy of comet Halley. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Comets and Asteroids . ... Milky Way . ... Space Flight . ... Earth Satellites . ... At its close on Saturday 23 April, there will be the Cosmic Threats to Earth Public Lecture Event (followed by the End of the World Ceilidh to cheer everyone up). ... аThere have been several such impacts in EarthтАЩs history. ... Of the three my greatest concern would and asteroid impact; simply because it has happened before. ...

... Новости астрономии и космонавтики (Модераторы: Karen , recarrion , LeMay ) ? Deep Impact -- Вот это фейерверк . ... Ответ #100 : 03.07.2005 [20:36:18] ? ... Записан . ... Ответ #104 : 04.07.2005 [00:01:32] ? ... Ответ #105 : 04.07.2005 [00:02:53] ? ... 7 a.m. - 10 a.m. - Deep Impact Pre-Impact Live Interviews - JPL (One-Way Media Interviews) . 2 p.m. - 3 p.m. - Deep Impact Pre-Impact Update - JPL(Update on separation and navigation) . 4 p.m. - Deep Impact Pre-Impact Update - HQ (Replay) . ...

... А.М. Белобородов (Колумбийский университет, США) . ... Рабочий язык конференции - русский. ... Е.М.Чуразов, д.ф .- м.н . А.А. Вихлинин, проф. д.ф .- м.н . М.Р.Гильфанов, д.ф .- м.н . М.Н.Павлинский, д.ф .- м.н . М.Г.Ревнивцев, д.ф .- м.н . С.Ю.Сазонов. д.ф .- м.н . М.Н.Павлинский (председатель), к.ф .- м.н . А.В.Мещеряков (зам. председателя), Н.Л.Александрович, к.ф .- м.н . В.А.Арефьев, к.ф .- м.н . Р.А.Буренин, П.Болдин, Н.П.Васильева, к.ф .- м.н . А.А.Воеводкин, В.Воробьев, А.Е.Елкин, ...