... 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 . ...

Southern Craters and Galaxies . ... The vertical panoramic view follows our magnificent Milky Way galaxy stretching above horizon, its rich central starfields cut by obscuring dust clouds. ... Captured in the region's spectacular, dark skies, the Small Magellanic Cloud, satellite of the Milky Way, is the bright galaxy to the left. Not the lights of a nearby town, the visible glow on the horizon below it is the Large Magellanic Cloud rising. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

. Портал | Содержание | О нас | Авторам | Новости | Первая десятка | Дискуссионный клуб | Научный форум | Отправить открытку . Первая десятка "Русского переплета" Темы дня: . | Обращение к Дмитрию Олеговичу Рогозину по теме "космические угрозы": как сделать систему предупреждения? . Дизайн Русский переплет .

Журнал ПОВЕРХНОСТЬ публикует оригинальные статьи и обзоры по наиболее актуальным проблемам изучения поверхностных явлений. ... Редакция журнала 'Поверхность. ... Англоязычная версия журнала Journal of Surface Investigation . X-Ray, Synchrotron and Neutron Techniques выходит 6 раз в год . The Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques ( Poverkhnost '. ... X-ray, Synchrotron and Neutron Techniques is abstracted and/or indexed in (Impact Factor 0.359): . ...

Educator's Guide to Impact Craters . ... Just about all craters have deep central depressions, raised rims, and a blanket of ejected material surrounding them. ... Look for classical cratering features: basin, raised rim, ejecta blanket (material excavated from the crater and dumped around it, visible as white flour on the colored powder), and rays (material shot out at high velocity forming lines pointing directly away from the impact site). ... The material lies like a blanket around the crater. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . Australia Telescope Compact Array . ... CSIRO, Australia's national science agency, operates a number of world-class radio astronomy observatories that are collectively known as the Australia Telescope National Facility or ATNF. ... CSIRO also manages the Murchison Radio-astronomy Observatory, where the Square Kilometre Array telescope infrastructure in Australia is to be centred. ...

... 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. ...

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. ...

... Make an Impact with Physics of the Dark Universe! . ... От: Physics of the Dark Universe <journals@mail.elsevier.com> Кому: This email address is being protected from spambots. ... Отправлено: Mon, 17 Aug 2015 14:12:51 +0300 (EEST) Тема: Make an Impact with Physics of the Dark Universe! ... Click here to view an online version impact factor news Make an Impact with Physics of the Dark Universe! ... We are happy to inform you about the new impact factor of <i> Physics of the Dark Universe . ...

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 . ...

... 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.: ...

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 ...

... 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. ...

STScI . Research . ... What is STScI . ... Staff Directory . ... Hubble Heritage Project . ... Research Staff Directory . Journal Clubs and Research Groups . Colloquia . ... Hubble Fellowships . ... AURA/ESA/CSA Staff List . Science Programs Having STScI Participation . SMO Staff Directory . ... CoolSci@STScI . HotSci@STScI . ... 2016 Spring Symposium . ... Fellowships and Student Programs . ... Previous Colloquia . ... Fall 2010 . Spring 2010 . ... Host: Jason Tumlinson . ...

... 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. ...

The world has lost one of its most renowned scientists with the death of Eugene Shoemaker at age 69. On the afternoon of July 18, 1997, Gene and his wife, Carolyn, were involved in a car accident in central Australia. ... Best known for his pioneering work in elucidating the mechanics of impacts and in the discovery of Earth-crossing bodies, Gene gained worldwide fame in March 1993 for his discovery,with Carolyn and colleague David Levy, of a comet that would strike Jupiter 16 months later. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Kaguya sur la Lune : la photo de l'impact . ... La sonde japonaise Kaguya, en orbite lunaire depuis 2007, s'est †йcras†йe sur la Lune le 10 juin, aux environs de 20h25 (heure fran†зaise...

November 2007 Astronotes 1 It came from Outer Space? ... Coming up to date, reality seemed to be imitating fiction on 15 September 2007, when something fell from the sky near the hitherto little-known village of Carancas, Peru, leaving a huge crater- yet no meteorite was found. Noxious fumes from the impact site caused a range of unpleasant symptoms in about six hundred local people. ... By the end of September, Mike Farmer (owner of www.meteorhunter.com) had traveled to the scene. ...

... Великолепная семерка" - это семь радиотихих близких одиночных нейтронных звезд , открытых спутником РОСАТ. Первый объект, звезда Волтера , был открыт в 1996 г. То что это одиночная близкая нейтронная звезда стало ясно практически сразу по экстремально большому отношению рентгеновского потока к оптическому. ... В стандартных моделях затухания поля в коре нейтронных звезд получается, что чем горячее звезда, тем быстрее затухает поле (это связано с худшей проводимостью коры более горячего объекта). ...

Journal of Atmospheric and Solar-Terrestrial Physics Manuscript Draft Manuscript Number: ATP1021 Title: comment on the paper by Dalin , Pertsev and Romejko Significance of lunar impact on noctilucent clouds ( revised version) Article Type: Research Paper Section/Category: Keywords: Noctilucent clouds moon influence mesosphere Manuscript Region of Origin: Abstract: a critical review of the paper by Dalin , ... Reference: Dalin, P.A., N.N. Pertsev, V.A. Romejko. ...