... 5.06.2001 . ... Credit: NEAR , JHUAPL , NASA Explanation: Orbiting the Sun between Mars and Earth , asteroid 433 Eros was visited by the robot spacecraft NEAR-Shoemaker in 2000 February. ... On 2001 February 12, the NEAR mission drew to a dramatic close as it was crash landed onto the asteroid's surface , surviving well enough to return an analysis of the composition of the surface regolith . ... Publications with keywords: asteroid - Eros . Publications with words: asteroid - Eros . ...

. After undergoing a catastrophic collision, the color of an asteroid gets modified rapidly by the solar wind so that it resembles the mean color of extremely old asteroids. After the first million years, the surface тАЬtansтАЭ much more slowly. At that stage, the color depends more on composition than on age. ESO/M. Martins

... Comet Shoemaker-Levy 9 Impact Images . Composite 3.42, 3.59, 3.99 micron image of poтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: Composite 3.42, 3.59, 3.99 micron image of post-impact splash of fragment G . ... Composite 3.42, 3.59, 3.99 micron image of post-impact splash of fragment G NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. ...

... 2011 June 19 . The Regolith of Asteroid Eros . Credit: NEAR Project , JHU APL , NASA . Explanation: From fifty kilometers above asteroid Eros , the surface inside one of its largest craters appears covered with an unusual substance: regolith . ... In this representative-color view taken by the robot spacecraft NEAR-SHOEMAKER that orbited Eros in 2000 and 2001, brown areas indicate regolith that has been chemically altered by exposure to the solar wind during micrometeorite impacts. ...

. S. G. Pugacheva and V. V. Shevchenko, Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., 119992 Moscow, Russia, pugach@sai.msu.ru . Pugacheva LPS 41.pdf - 208K б . Sternberg Astronomical Institute, Universitetskii pr. 13, Moscow, 119992 Russia . Received December 21, 2009 . SSR-10(Busarev).pdf - 239 KB . V. V. Busarev . Sternberg Astronomical Institute, Universitetskii pr. 13, Moscow, 119992 Russia . Received December 21, 2009 . SSR-11(Busarev).pdf - 204 KB .

... 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 . ...

... My research interests include the compositions of extrasolar rocky objects and the fate of planetary systems around white dwarfs. ... This process often creates a hot dust disk very close to the white dwarf. Measuring the atmospheric compositions of externally-polluted white dwarfs can provide unique information about the composition of those extraterrestrial material. ... Circumstellar Environment around White Dwarfs . About 4% white dwarfs display excess infrared radiation from a dust disk. ...

... Arecibo Observatory took radar images of asteroid 1998 QE2 and its moon as the space rock sailed safely past earth. ... Both the asteroid and its moon passed 6 million kilometers (3.8 million miles) from earth. ... Radar images of asteroid 1998 QE2 (bottom) and its satellite (top) on June 6. ... Radar images of asteroid 1998 QE2 (center) and its satellite (bottom left) on June 7. ... Radar image from June 7 showing the satellite moving past the primary. ...

... Comets and Asteroids . ... Space Flight . ... By admin October 14, 2010 Posted in: Comets and Asteroids . ... No one on Earth noticed this cataclysm until January 2010, almost a year later, when the LINEAR survey discovered something odd , initially thought to be a comet. ... For details of observations at this time, see Crash of the Asteroids by Sinead McNicholl in the March 2010 issue of Astronotes . Colliding asteroid P/2010 A2 as seen by Rosetta (Image credit: ESA) . ...

... The main topics of the Conference were: 1. ... Asteroid-comet hazard (origin and dynamic evolution of objects approaching the Earth, observations, physical properties, cataloguing, data bases, estimation of collision probability with the Earth and other bodies). ... 5) In this connection the problem of concluding the international political agreement within the frames of UN about common active counteractions to the bodies on the orbits leading to collisions with the Earth is urgent. ...

... 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 . ...

... SMIS ] . ... Aqua, 22.04.2004, 04:15 GMT . ... Space Research Institute, Moscow ( http://smis.iki.rssi.ru/ ) . NOAA 12, 3.04.2004, 13:20 GMT . ... NOAA 16 20/08/2003 3:09 GMT . ... NOAA 16 4/04/03 10:41 GMT . ... NOAA 15 1999.12.14 09:32 MSK . ... NOAA 15 . ... NOAA 14 22/01/1999 9:13 GMT . ... Pseudo-colour image. ... Red - channel 5, Green - channel 2, Blue -channel 1 . ... True-color composition from NOAA 12 and NOAA 14 AVHRR Channel 3 data using images acquired at different times of a day. ...

... The low energy plasma composition spectrometer AMEI-2 is built to be able to find in the low energy range of the phase space (E, q, j) and separate the fluxes of the major ion species in the magnetotail - H+, He++, He+ and O+, and analyse their energy and angular distributions. ... Electrostatic angular scanning in one direction and the use of the spin of the satellite to sample the other angle give the ability to measure 2-D distributions for each ion specie several times per spin. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The Shareable Data Center "East Siberian Center for the Earth's Ionosphere Research" (SDC ESCEIR) consists of: . incoherent scatter ionoshere diagnostics subdivision , . short-wave ionoshere diagnostics subdivision , . informational service and mathematical modelling subdivision , . technical and engineer support of instruments subdivision , . ...

Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...

В 2004 году компания Scaled Composites завоевала X-Prize , то есть выполнила два суборбитальных полета аппарата SpaceShipOne с интервалом менее недели. ... Серьезность намерений компании не вызывала сомнения у государственных органов, и 1 апреля 2004 года компания Scaled Composites получила от Федерального управление гражданской авиации США (Federal Aviation Administration - FAA) годичную лицензию на проведение суборбитальных полетов. ... Суборбитальные полеты . ...

... 6 5.5 5 4.5 5.5 6 6.5 7 7.5 8 8.5 9 -1.33 -1.34 -1.35 -1.36 -1.37 -1.38 4.5 5 5.5 6 6.5 7 7.5 8 L - [Z] 0.4 0.38 0.36 0.34 0.32 0.3 0.28 4.5 5 5.5 6 6.5 7 7.5 8 L - [Fe] 0.85 0.8 5.5 6 6.5 7 7.5 8 8.5 9 0.95 0.9 M-L 1.05 1 M - M/L 13/14 M = 106.5 Msol 0.3 [Fe/H] 0.2 OB = 2 km/s 0.3 M = 106.5 Msol OB = 8 km/s 0.3 M = 107.5 Msol OB = 8 km/s 0.3 M = 108.5 Msol OB = 8 km/s [Fe/H] 0.2 0.2 [Fe/H] 0.2 [Fe/H] 0.1 0.1 0.1 ...