... 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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... Landsat 7 Views Planet Earth . ... 14.05.1999 . ... Credit Copyright: Landsat 7 Project , NASA Explanation: Launched last month, NASA's Landsat 7 spacecraft now orbits planet Earth . Looking down from an altitude of 700 km, Landsat 7 can map the planet's surface in visible and infrared bands and resolve features 30 meters across or smaller. ... Publications with keywords: Earth - planet - landsat - san fransisco . Publications with words: Earth - planet - landsat - san fransisco . ...

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• Mars: Just The Facts
• Welcome to Planet Earth
• Invader From Earth

... Pre-university education . ... Samara region . ... A small spacecraft Aist-2D , developed by the scientists of Samara State Aerospace University (SSAU) and the experts of the Rocket and Space Centre Progress will see from outer space what is hidden under the thick top of trees and below the Earth's surface. The radar equipment was installed on Aist-2D , which was delivered to the space launcher complex Vostochniy on January 22. ... Tomography of the Earth's ionosphere will also be carried out. ...

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... Planets . ... The planets were found using the HARPS instrument on the 3.6m telescope at ESOтАЩs La Silla Observatory. ... A planet in orbit around a star causes the star to regularly move towards and away from observers on Earth. ... One newly discovered planet, HD 85512 b, is best hope found so far for a habitable exoplanet. ... The HARPS team so far have found that about 40% of stars similar to own Sun have at least one planet smaller than Saturn (which is 95 times more massive than Earth). ...

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• Planets | Astronotes - Part 2
• Kepler-10c: the First Mega-Earth | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 14, 1999 . Landsat 7 Views Planet Earth . Credit: Landsat 7 Project , NASA . Explanation: Launched last month, NASA's Landsat 7 spacecraft now orbits planet Earth . Looking down from an altitude of 700 km, Landsat 7 can map the planet's surface in visible and infrared bands and resolve features 30 meters across or smaller. ...

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• APOD: 2007 March 25 - Welcome to Planet Earth
• APOD: June 27, 1997 - Mars: Just The Facts
• APOD: 2012 May 15 - All the Water on Planet Earth

... Research . ... NASA's "follow the water" philosophy has led me to study atmosphere-regolith interactions on Mars in search for locations and times where liquid water is available. ... Transient liquid water and water activity at Gale crater Mars. ... Rivera-Valentin, E. G. , Chevrier, V. F., 2015. ... Icarus , 253, 156-158. Lopez Garcia, E. J., Rivera-Valentin, E. G. , Schenk, P. M., Hammond, N. P., Barr, A. C., 2014. ... Icarus , 237, 419-421. ... Chevrier, V. F., Rivera-Valentin, E. G. , 2012. ...

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• water ice on mercury
• solar system exhibit

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• Intelligent Life On Earth?
• All about Jupiter
• Venus and Mars

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Parkes | ... Cosmic engine for senior students . ... The Sun . The Sun is vital for life on Earth. ... The Sun is a typical star, emitting electromagnetic radiation and particles that influence the Earth . ... In the meantime you can view material on the Sun and its influence on Earth written for the first version of the new syllabus here . ...

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• Cosmic Engine: Early Models of the Universe
• ATNF Colloquium
• Early Scientific Results

Why do people want to explore Mars? At the present time Mars topography is known sufficiently well to make a Martian map; we cannot distinguish yet the settlements of the inhabitants of this planet, but sooner or later we probably will be able to achieve this as well.. ... US spacecraft "Mariner-4" performed the first successful flyby and transmitted to the Earth twenty one photos of Mars' surface. ... It is supposed that large subsurface ice reservoirs or liquid water exist on Mars. ...

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• Lagrangian Points
• Venus
• Spacecraft that Explore Distant Space

. Previous slide . Next slide . Back to first slide . View graphic version .

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• Gravity correlates with Size
• Michele Bannister - Research
• Home Page of Raquel Salmeron

... Spacecraft . ... To space by cannon? Finally, the deep space explorers --spacecraft which break away from the Earth's gravity . ... The "Luna" series of the USSR conducted 7 soft landing of unmanned probes, two of them with wheeled robotic "Lunokhods," and two of those missions returned samples to Earth. Others spacecraft have visited the major planets of the Solar system. ... The Mariner series have explored Venus and Mars--and Mariner 10 even reached Mercury, for three separate encounters! ...

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• Lagrangian Points
• Spacecraft Observing Earth's Space Environment
• Polar Orbiting Satellites

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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• venerae
• Keplere
• antichnoste

With this knowledge of orbits, we are ready to plan a trip to Mars. ... The spacecraft will already have the 107,000 kilometers per hour (66,500 miles per hour) speed of Earth, whereas Mars moves at only 86,900 kilometers per hour (53,900 miles per hour). ... A speed of about 42,000 kilometers per hour will be enough to escape the Earth's gravity and, when added to the Earth's orbital speed around the Sun, put the spacecraft on a Hohmann transfer orbit to the Red Planet. ... 1,570,000 . ... Earth . ...

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• ASP: Good Astronomy Activities on the WWW
• ASP: An Ancient Universe - Changes in the Solar System
• ASP: Star Science in the Autumn Sky

... Planet Finder Options I: Linear Nulling Arrays for Studying Earth-Like Planets . ... Missions . ... Future Missions and . ... Missions Office . ... This paper shows options for configuring a symmetric linear nulling array as a Planet Finder. Of special interest are linked in-line pairs of identical sub-arrays with a quarter wave phase shift between them and staggered by half an element spacing. ...

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• The Faint Early Sun: Paradox, Problem, or Distraction?
• Comparing Earth.html.document
• Detection of Earth-like Planets with the COROT Space Mission

... STScI-PRC99-27 A CLOSER ENCOUNTER WITH MARS Taking advantage of Mars's closest approach to Earth in eight years, astronomers using NASA's Hubble Space Telescope have taken the space-based observatory's sharpest views yet of the Red Planet. ... In these views the north polar cap is tilted toward the Earth and is visible prominently at the top of each picture. ... Dark sand dunes that surround the polar cap merge into a large, dark region called Acidalia. ...

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• The Planet Jupiter
• Asteroid Introduction
• Mariner 4

... Astronomy news . ... Earth Seen By NASA's Moon Mapper On India's Chandrayaan-1 Spacecraft . A new image of Earth taken from 200 kilometers (124 miles) above the lunar surface was taken by the Moon Mineralogy Mapper, one of two NASA instruments onboard the Indian Space Research Organization's Chandrayaan-1 spacecraft. ... NASA's Jet Propulsion Laboratory, Pasadena, Calif., designed and built the Moon Mineralogy Mapper and is home to its project manager, Mary White. ...

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• Earth Witnesses the First Powerful Areas of the New Solar Cycle
• The Russian TESIS Observatory will observe two solar eclipses from space
• TESIS has recorded new sizeable mass ejections from the Sun's atmosphere

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Mad Science

... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. ... The Sych-2 satellite is being developed as a part of the space optical-range Earth observation system by the State Design Office of Yuzhnoye and built by the Industrial Association Yuzhny Machine Building Plant in cooperation w ith other space industry entities upon the state order of the National Space Agency of Ukraine . ...

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• The first national Earth remote sensing satellite of Turkey will be placed into
• ISC Kosmotras will provide launch services for two Earth-observation satellites

... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... TRAnsiting Planets and PlanetesImals Small Telescope . ... ESO 1-metre Schmidt telescope . ... Artist's impression of the five-Earth mass planet, Gliese 581 c, found in the habitable zone around the red dwarf Gliese 581, with the instrument HARPS on the ESO 3.6-m telescope. ...

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• ESO. Astronomy from Planet Earth | ESO
• The Earth-like Planet Gliese 581 c (artist's impression) | ESO United States
• The Earth-like Planet Gliese 581 c (artist's impression) | ESO Ireland

... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

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• Can Earth-like lightning and thunder occur on a planet or Moon that exhibits
• Do other planets have meteor showers like Earth has? Can we see them through
• A new survey found planets skimming a starт??s surface | Astronomy.com