Can we detect asteroid impacts with rocky extrasolar planets?
... million years or so. There are four rocky planets in our solar system, so we can expect one to be hit every 25 million years. However, half of these impacts will be on the side facing away from the Earth so a visible impact occurs, on average, once every 50 million years. During the first billion ye ...
... million years or so. There are four rocky planets in our solar system, so we can expect one to be hit every 25 million years. However, half of these impacts will be on the side facing away from the Earth so a visible impact occurs, on average, once every 50 million years. During the first billion ye ...
Asteroids, meteors, meteorites
... 1980 -- Spacewatch program starts at the University of Arizona, intent on cataloging asteroids. The goal is to get a statistical picture of orbiting rocks anywhere in the solar system. 1980 -- Physicist Luis Alvarez and his team blames the dinosaur extinction on the environmental havoc of a collisio ...
... 1980 -- Spacewatch program starts at the University of Arizona, intent on cataloging asteroids. The goal is to get a statistical picture of orbiting rocks anywhere in the solar system. 1980 -- Physicist Luis Alvarez and his team blames the dinosaur extinction on the environmental havoc of a collisio ...
4. How Close Will It Come?
... capable of regional devastation. ...Attention by public and by public officials is merited if the encounter is less than a decade away.” It was later demoted to Level 0 on Torino scale. NASA Near Earth Object Apophis Position Uncertainty: http://neo.jpl.nasa.gov/apophis/apophis_image3.html ...
... capable of regional devastation. ...Attention by public and by public officials is merited if the encounter is less than a decade away.” It was later demoted to Level 0 on Torino scale. NASA Near Earth Object Apophis Position Uncertainty: http://neo.jpl.nasa.gov/apophis/apophis_image3.html ...
Comets and Asteroids Up-close
... Ceres: Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter and the only dwarf planet located in the inner solar system. It was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801. ...
... Ceres: Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter and the only dwarf planet located in the inner solar system. It was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801. ...
NEO lecture 02 - Observations of NEOs
... The camera at ESA’s telescope on Tenerife is cooled by liquid nitrogen to temperatures such that the dark current and its noise contribution can be neglected. The readout is slow enough so that also its noise contribution can be neglected. The camera is operated with a bias of DNbias ~ 8000. For a ...
... The camera at ESA’s telescope on Tenerife is cooled by liquid nitrogen to temperatures such that the dark current and its noise contribution can be neglected. The readout is slow enough so that also its noise contribution can be neglected. The camera is operated with a bias of DNbias ~ 8000. For a ...
Dawn Spacecraft Will Go Asteroid
... taken photos of Vesta before, these new images are the best views of the asteroid’s Southern Hemisphere. The photos clearly show the large impact basin created from a collision billions of years ago. The huge crater is 285 miles (456 kilometers) across, which is nearly equal to Vesta’s 330-mile (530 ...
... taken photos of Vesta before, these new images are the best views of the asteroid’s Southern Hemisphere. The photos clearly show the large impact basin created from a collision billions of years ago. The huge crater is 285 miles (456 kilometers) across, which is nearly equal to Vesta’s 330-mile (530 ...
Asteroids, Comets, Meteors…what`s the difference
... ______________________); comets are dark (virtually invisible) throughout most of their orbit. We can only see comets when they're near the Sun. The ______________________ passes through the orbit of some comets. When this happens, the left-over comet comet debris (rocks, etc.) bombards the Earth, a ...
... ______________________); comets are dark (virtually invisible) throughout most of their orbit. We can only see comets when they're near the Sun. The ______________________ passes through the orbit of some comets. When this happens, the left-over comet comet debris (rocks, etc.) bombards the Earth, a ...
Small Bodies in the Solar System
... • Both are heavily cratered by impacts with smaller asteroids & comets. • Ida is about 56 km long & Dactyl is about 1.5 km. • You can just see Dactyl in this picture. ...
... • Both are heavily cratered by impacts with smaller asteroids & comets. • Ida is about 56 km long & Dactyl is about 1.5 km. • You can just see Dactyl in this picture. ...
NASA finds closest Earth-twin yet
... now what the Earth will undergo more than a billion years from now, as the Sun ages and grows brighter.” Jenkins was more optimistic, however, based on the planet’s age, size, and higher mass and gravity than on Earth. “This planet is protected at least for a little while longer, 500 million years o ...
... now what the Earth will undergo more than a billion years from now, as the Sun ages and grows brighter.” Jenkins was more optimistic, however, based on the planet’s age, size, and higher mass and gravity than on Earth. “This planet is protected at least for a little while longer, 500 million years o ...
The Origin of the Solar System: Progress in Understanding Accretion
... even imagined when our own system was the only example at hand. More sophisticated formation models are warranted, now that we have a better understanding of the processes at work, and of the range of final states. However, it is critical to understand the mechanics and outcomes of collisions among ...
... even imagined when our own system was the only example at hand. More sophisticated formation models are warranted, now that we have a better understanding of the processes at work, and of the range of final states. However, it is critical to understand the mechanics and outcomes of collisions among ...
Comets, Asteroids, and Meteors- Oh My!
... • Definition: objects that are too small and numerous to be considered planets • Rocky – 75% of all asteroids • Iron (metals) – 7% of all asteroids • Mixed (rock and iron blended) – 18% of all asteroids ...
... • Definition: objects that are too small and numerous to be considered planets • Rocky – 75% of all asteroids • Iron (metals) – 7% of all asteroids • Mixed (rock and iron blended) – 18% of all asteroids ...
Mars Science Laboratory Makes First Contact Mysterious Particles
... nightfall. Look not far to the Moon's right and lower right for Alpha and Beta Capricorni, respectively. Alpha Cap, yellow, is a wide double star that you may just be able to resolve with your unaided eyes. If not, the smallest binoculars will do the trick. · Wednesday, Nov. 30 · Far to the lower le ...
... nightfall. Look not far to the Moon's right and lower right for Alpha and Beta Capricorni, respectively. Alpha Cap, yellow, is a wide double star that you may just be able to resolve with your unaided eyes. If not, the smallest binoculars will do the trick. · Wednesday, Nov. 30 · Far to the lower le ...
NASA to Launch Twin Moon Probes This Week Next Mars Rover`s
... of similarly colored Pollux from this morning through Saturday morning. Watch the triangle that Mars forms with Pollux and Castor change shape daily. Mars is midway in brightness between these two stars. · As dawn grows brighter, look far below or lower left of the Mars-Castor-Pollux triangle to pic ...
... of similarly colored Pollux from this morning through Saturday morning. Watch the triangle that Mars forms with Pollux and Castor change shape daily. Mars is midway in brightness between these two stars. · As dawn grows brighter, look far below or lower left of the Mars-Castor-Pollux triangle to pic ...
Rachel - Science A 2 Z
... • Many asteroids, including all of the largest asteroids, orbit the sun between Mars and Jupiter in the Asteroid Belt. • Meteors are the short, white trails across the sky that we call "shooting stars." • Comets come from two places in the Solar System: the Oort Cloud and the Kuiper Belt. http://www ...
... • Many asteroids, including all of the largest asteroids, orbit the sun between Mars and Jupiter in the Asteroid Belt. • Meteors are the short, white trails across the sky that we call "shooting stars." • Comets come from two places in the Solar System: the Oort Cloud and the Kuiper Belt. http://www ...
Threats to Earth - World of Teaching
... • Suggest and discuss possible actions which could be taken to reduce the threat of NEOs ...
... • Suggest and discuss possible actions which could be taken to reduce the threat of NEOs ...
Comets and Mass Extinction
... NASA’s CAPS : Detection System put in Moon to identify NEO’s . Don Quijote: Involves two spacecrafts: Sancho and Hidalgo Sancho arrives first and orbits asteroid for several months deploying penetrating probes to examine its structure before and after crash. Hidalgo smashes into asteroid at 10 km/s ...
... NASA’s CAPS : Detection System put in Moon to identify NEO’s . Don Quijote: Involves two spacecrafts: Sancho and Hidalgo Sancho arrives first and orbits asteroid for several months deploying penetrating probes to examine its structure before and after crash. Hidalgo smashes into asteroid at 10 km/s ...
Comets, Asteroids, and Meteors
... • Definition: objects that are too small and numerous to be considered planets • Rocky – 75% of all asteroids • Iron (metals) – 7% of all asteroids • Mixed (rock and iron blended) – 18% of all asteroids ...
... • Definition: objects that are too small and numerous to be considered planets • Rocky – 75% of all asteroids • Iron (metals) – 7% of all asteroids • Mixed (rock and iron blended) – 18% of all asteroids ...
Ups and downs
... As a consequence of these unusual orbits, they will either travel far down the magnetotail or shuttle between the magnetosphere and interstellar space. And by flying in tetrahedral formation as they cross major boundaries and regions of interest such as the polar cusps and the magnetopause, the quar ...
... As a consequence of these unusual orbits, they will either travel far down the magnetotail or shuttle between the magnetosphere and interstellar space. And by flying in tetrahedral formation as they cross major boundaries and regions of interest such as the polar cusps and the magnetopause, the quar ...
Asteroids, Comets and Meteorites What is an Asteroid? Asteroids
... matter burning up in the atmosphere. An estimated 1000 tons falls on the Earth daily Material comes from asteroid collisions and comet tails e.g. Leonids are residue of material left by comet Temple Tuttle, which has a period of ~33 years Leonids are notable every 33 years sporadic meteors a ...
... matter burning up in the atmosphere. An estimated 1000 tons falls on the Earth daily Material comes from asteroid collisions and comet tails e.g. Leonids are residue of material left by comet Temple Tuttle, which has a period of ~33 years Leonids are notable every 33 years sporadic meteors a ...
Discovering Asteroids Using
... Are the asteroids a planet that was somehow destroyed? ! How far apart are the asteroids on average? ! Why do comets have tails? ! In which direction does a comet’s tail point? ! What is a shooting star? ...
... Are the asteroids a planet that was somehow destroyed? ! How far apart are the asteroids on average? ! Why do comets have tails? ! In which direction does a comet’s tail point? ! What is a shooting star? ...
Ice Giant Neptune Frontlines Potentially Hazardous Asteroid
... Discovered in February 2002 by the Lincoln NearEarth Asteroid Research (LINEAR), Asteroid CU11 orbits the Sun in 492 days, and will pass within 13.5 lunar distances (about 3.2 million miles distance) this time around. In August of 2080, Asteroid 2002 CU11 will flyby Earth at less than two lunar ...
... Discovered in February 2002 by the Lincoln NearEarth Asteroid Research (LINEAR), Asteroid CU11 orbits the Sun in 492 days, and will pass within 13.5 lunar distances (about 3.2 million miles distance) this time around. In August of 2080, Asteroid 2002 CU11 will flyby Earth at less than two lunar ...
Where to See the Annular Solar Eclipse Online SpaceX Launch on
... May 18 - Lecture: Faults and Folds on Mercury, Houston, Texas May 18-20 - 2012 Bootleg Astronomy Star Party, Harmon, Illinois May 19 -[May 18] Dragon C-2 & C-3 Falcon 9 Launch (International Space Station) May 19 - Asteroid 433 Eros Occults 2UCAC 23131631 (11.7 Magnitude Star) May 19 - Asteroid 2660 ...
... May 18 - Lecture: Faults and Folds on Mercury, Houston, Texas May 18-20 - 2012 Bootleg Astronomy Star Party, Harmon, Illinois May 19 -[May 18] Dragon C-2 & C-3 Falcon 9 Launch (International Space Station) May 19 - Asteroid 433 Eros Occults 2UCAC 23131631 (11.7 Magnitude Star) May 19 - Asteroid 2660 ...
Meteroroids! Asteroids! Comets!
... • Many animals became extinct (including many types of dinosaurs) ...
... • Many animals became extinct (including many types of dinosaurs) ...
Meteoroids-Asteroids-Comets
... • Many animals became extinct (including many types of dinosaurs) ...
... • Many animals became extinct (including many types of dinosaurs) ...
B612 Foundation
The B612 Foundation is a private nonprofit foundation with headquarters in the United States, dedicated to planetary defense against asteroids and other near-Earth object (NEO) impacts. It is led mainly by scientists, former astronauts and engineers from the Institute for Advanced Study, Southwest Research Institute, Stanford University, NASA and the space industry.As a non-governmental organization it has conducted two lines of related research to help detect NEOs that could one day strike the Earth, and find the technological means to divert their path to avoid such collisions. The organization has publicized the true rate of ""city-killer"" type impacts of the same magnitude as the explosive 1908 Tunguska event, a rate which is from three to ten times greater than previously believed, or about every century on average. It also assisted the Association of Space Explorers in helping the United Nations establish the International Asteroid Warning Network, as well as a Space Missions Planning Advisory Group to provide oversight on proposed asteroid deflection missions.In 2012, the foundation announced it would design and build a privately financed asteroid-finding space observatory, the Sentinel Space Telescope, to be launched in 2017–2018. Once stationed in a heliocentric orbit around the Sun similar to that of Venus, Sentinel's supercooled infrared detector will help identify dangerous asteroids and other NEOs that pose a risk of collision with Earth. In the absence of substantive planetary defense provided by governments worldwide, B612 is conducting a fundraising campaign to cover the Sentinel Mission, estimated at $450 million for 10 years of operation.Fund raising has been very slow—raising only US$3 million in 2012 and 2013—and, as of June 2015, NASA is re-examining its reliance on private sector approach to space-based NEO survey missions.The B612 Foundation is named for the asteroid home of the eponymous hero of Antoine de Saint-Exupéry's The Little Prince.