... 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 . ...

... Impact: 65 Million Years Ago . ... Their sudden disappearance 65 million years ago, along with about 70 percent of all species then living on Earth, is known as the K-T event (Cretaceous-Tertiary Mass Extinction event). ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: Earth - dinosaur - K-T event - impact - crater . Publications with words: Earth - dinosaur - K-T event - impact - crater . ... Pangea Ultima: Earth in 250 Million Years . ...

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 . ...

... June 4, 1996 . Impact! 65 Million Years Ago . ... Their sudden disappearance 65 million years ago, along with about 70 percent of all species then living on Earth, is known as the K-T event (Cretaceous-Tertiary Mass Extinction event). ... Regardless of the true cause of the K-T event, it is fortunate that such impacts are presently believed to happen only about once every 100 million years! ... About APOD | ...

Vesta . ... The Hubble Space Telescope observed asteroid Vesta between November 28 and December 1, 1994, when Vesta was at a distance of 251 million kilometers (156 million miles) from Earth. ... Vesta's surface shows a geology similar to that of terrestrial worlds such as Earth and Mars . ... Astronomers believe that some of the pieces knocked off Vesta have fallen to Earth as meteorites , which show a similar spectral fingerprint to Vesta's surface composition. ... Surface Map of Vesta . ...

. An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ARTIST'S CONCEPTION OF AN ASTEROID IMPACT . Artist Don Davis paints a view of what a large asteroid might look like as it hits the Earth. Just such an asteroid is thought to have hit the Earth 65 million years ago, destroying more than half of all living species on our planet. (Courtesy of NASA Ames Research Center) . Return to An Ancient Universe . Changes in the Solar System .

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. ...

... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Comets and Asteroids . ... Space Flight . ... Hartley 2 seen by Deep Impact (Image credit: NASA/JPL-Caltech/UMD) . ... Deep Impact: little-known to the general public but hugely important. ... Deep Impact is no stranger to comets, having visited (and bombarded) Comet Tempel 1 in 2005 . ... Hartley was present at the Jet Propulsion Laboratory (JPL) in California to see the images of his comet as they arrived from deep space. ...

ASTEROID 2005 YU55 . Asteroid 2005 YU55 was listed on NASA's "Sentry Risk Page" as having as small (about one in 10 million) chance of hitting the Earth in the next century. We observed this asteroid with the Arecibo Planetary Radar system on April 19-23 2010. ... A very close pass by Earth will take place November 8, 2011. ... Astronomers used the planetary radar system at the Arecibo Observatory radio telescope to spot the asteroid, called 2005 YU55, over four days starting on April 19 . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... 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 †А la une M†йt†йorite russe, les le†зons de l'impact c†йleste . ... M†йt†йorite russe, les le†зons de l'impact c†йleste . ... En mettant des centaines ou des milliers de photos bout †а bout, la technique des time-lapses permet d'acc†йl†йrer fortement les mouvements du...

... View from a killer asteroid (W. Hartmann) . Asteroid Ida . ... Asteroids are made of rock and/or iron - much higher strength material, so a larger fraction survives to impact. ... Meteor Crater, Arizona: 1200 m x 70 m : 20 Megatons, D~10 metres? ... We may even have found a piece of the killer asteroid. expected frequency - once per 100 million years . ... Nearer to home, Clearwater Lakes, in Quebec, form a pair of impact craters, 32 km and 22 km in diameter respectively, aged ~290 million years . ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Plenty of information about the hazards of being a planet in our solar system. ... Listed Since July 15, 1998 . ... Web Site . http://impact.arc.nasa.gov/ . ... Additional Information . Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Massive asteroid impact on Mars . ... One of the proposed explanations &#8212 a massive asteroid impact &#8212 now has strong support from computer simulations carried out by two groups of researchers. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... The Russian TESIS/ CORONAS-PHOTON Solar Observatory, which has been working in orbit since January 30th, 2009, has photographed one of the most important events in the build up to the upcoming solar cycle - the formation of our star's new southern belt of activity. The first magnetic fields of the new cycle in the southern hemisphere appeared on the Sun's surface on May 23-24th. ... The belt of activity is one of the primary concepts, characterizing the solar cycle. ...

Likely Impact Sites of Large Fragments of the Tunguska Cosmic Body . ... Kulik. Kulik schematized the tree fall around the Cranberry Hole and at the Southern Bog in order to elucidate the possible location of meteorite fragments. ... We consider that it is necessary to verify the Kulik proposal and to perform at first georadar investigations in the Suslov and Cranberry holes and then drill in the craters to find possible meteorite fragments. ...

. 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 .

Fragment A Impact This images comes from the 3.5-meter telescope at Calor Alto Spain. A methane blocking filter was used at a wavelength of around 2.3 microns in order to maximimize the contrast of the structure in the Jovian atmosphere. ... The initial impact of Fragment A produced a spot/plume that rivaled the brightness of Io for a few seconds and then later faded. ... La Silla Image Sequence This sequence will show the development of the plume from Fragment A as well. ...

... 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. ...

... Deep Impact снял прохождение Луны по диску Земли . ... Космический аппарат Deep Impact, три года назад сбросивший болванку на ядро кометы Темпля-1, получил серию фотоснимков, показывающих прохождение Луны по диску Земли. ... Deep Impact с задачей не справился . ... Deep Impact, ударная часть которого бомбардировала 4 июля ядро кометы Tempel 1, так и не смог заснять образовавшийся при столкновении двух тел кратер. ... Deep Impact ?выбил пыль? из кометы Tempel 1 . ... Группы ключевых слов . ...