Family Space Day Overview - Comets
... each other, point them toward the comet model from about 18 inches away. Turn out the lights to create a more dramatic visual effect. Move the hairdryer closer and farther from the dry ice ball. The flashlight represents our Sun and the hairdryer represents the solar wind. Potential Misconception Al ...
... each other, point them toward the comet model from about 18 inches away. Turn out the lights to create a more dramatic visual effect. Move the hairdryer closer and farther from the dry ice ball. The flashlight represents our Sun and the hairdryer represents the solar wind. Potential Misconception Al ...
Asteroids - Friend or Foe? - [email protected]
... compositions of asteroids because they are too small to be resolved using Earth-based telescopes. Put together, all known asteroids actually amount to considerably less than the Moon’s mass (Chaisson and McMillan, p.356). Asteroids are so tiny that it is generally impossible to measure their sizes d ...
... compositions of asteroids because they are too small to be resolved using Earth-based telescopes. Put together, all known asteroids actually amount to considerably less than the Moon’s mass (Chaisson and McMillan, p.356). Asteroids are so tiny that it is generally impossible to measure their sizes d ...
Solar System evolution from compositional mapping of the asteroid
... Solar System or whether they were created close to the Sun and later injected into the main belt15,40. Asteroids that look compositionally Trojan-like (D-types; see Fig. 3) are detected in the inner belt, where they are not predicted to exist by dynamical models19,41,42. Their presence so close to t ...
... Solar System or whether they were created close to the Sun and later injected into the main belt15,40. Asteroids that look compositionally Trojan-like (D-types; see Fig. 3) are detected in the inner belt, where they are not predicted to exist by dynamical models19,41,42. Their presence so close to t ...
Solar System evolution from compositional mapping of the
... planetary systems are built, our solar system has the advantage of detail. For nearly two centuries since their first discovery, asteroids have been viewed as remnants of planetary formation. Located between Mars and Jupiter in the main asteroid belt (Fig 1), it was perceived they formed essentially ...
... planetary systems are built, our solar system has the advantage of detail. For nearly two centuries since their first discovery, asteroids have been viewed as remnants of planetary formation. Located between Mars and Jupiter in the main asteroid belt (Fig 1), it was perceived they formed essentially ...
3. Meteorites and Asteroids
... differentiation by igneous processes of bodies near the size of large asteroids (hundreds of kilometers in diameter). As these bodies-which originally may have had chondritic compositions-heated and melted, heavy iron and nickel separated from the molten rock and sank to the center, making a liquid ...
... differentiation by igneous processes of bodies near the size of large asteroids (hundreds of kilometers in diameter). As these bodies-which originally may have had chondritic compositions-heated and melted, heavy iron and nickel separated from the molten rock and sank to the center, making a liquid ...
PPT
... • Calculating asteroid trajectories, precisely, can be tricky – Need a detailed mapping of the Sun’s gravitational field – Need a better understanding of the characteristics of the asteroid ...
... • Calculating asteroid trajectories, precisely, can be tricky – Need a detailed mapping of the Sun’s gravitational field – Need a better understanding of the characteristics of the asteroid ...
Discovery
... (thus the word cereal). However, subsequent observations swiftly established that it could not be classed a planet, since its diameter is only about 600 miles. The search for the “real” planet continued. ...
... (thus the word cereal). However, subsequent observations swiftly established that it could not be classed a planet, since its diameter is only about 600 miles. The search for the “real” planet continued. ...
Here - ScienceA2Z.com
... sun, solar energy begins to heat the ice and vaporize it. The gas flies off the comet, sometimes violently enough to break the nucleus apart, and throws dust up with it. The gases form a cloud around the nucleus called the coma. Some of the gas is stripped of electrons and blown back by the solar wi ...
... sun, solar energy begins to heat the ice and vaporize it. The gas flies off the comet, sometimes violently enough to break the nucleus apart, and throws dust up with it. The gases form a cloud around the nucleus called the coma. Some of the gas is stripped of electrons and blown back by the solar wi ...
Here - ScienceA2Z.com
... sun, solar energy begins to heat the ice and vaporize it. The gas flies off the comet, sometimes violently enough to break the nucleus apart, and throws dust up with it. The gases form a cloud around the nucleus called the coma. Some of the gas is stripped of electrons and blown back by the solar wi ...
... sun, solar energy begins to heat the ice and vaporize it. The gas flies off the comet, sometimes violently enough to break the nucleus apart, and throws dust up with it. The gases form a cloud around the nucleus called the coma. Some of the gas is stripped of electrons and blown back by the solar wi ...
Asteroids and Meteoroids
... has been suggested that asteroids are the remains of a planet that was destroyed in a massive collision, it is more likely that they represent material that never coalesced into a planet. If the estimated total mass of all asteroids was gathered into a single object, the object would be less than ha ...
... has been suggested that asteroids are the remains of a planet that was destroyed in a massive collision, it is more likely that they represent material that never coalesced into a planet. If the estimated total mass of all asteroids was gathered into a single object, the object would be less than ha ...
Asteroids - Elements Magazine
... it is classified as a meteorite. The difference between an asteroid, a meteor, and a meteorite was nicely exemplified on February 15, 2013, when the asteroid NEA 2012 DA14 (45 m diameter) passed within 27,700 km of Earth. On the same day, an unrelated superbolide meteor (NEA Apollo group; D ≈ 15 m) ...
... it is classified as a meteorite. The difference between an asteroid, a meteor, and a meteorite was nicely exemplified on February 15, 2013, when the asteroid NEA 2012 DA14 (45 m diameter) passed within 27,700 km of Earth. On the same day, an unrelated superbolide meteor (NEA Apollo group; D ≈ 15 m) ...
Asteroids, Meteors, Comets
... – No, the gravitational pull of Jupiter prevented the planetesimal in the asteroid belt to coalesce into planet ...
... – No, the gravitational pull of Jupiter prevented the planetesimal in the asteroid belt to coalesce into planet ...
name those asteroids!
... rocket fuel and consumables (drinking water, air, food) from the Earth because they are heavy, bulky items. Therefore, the space agencies are looking for sources of rocket fuel and consumables at an intermediate destination, the asteroid belt. Your class has been selected to plan a prospecting exped ...
... rocket fuel and consumables (drinking water, air, food) from the Earth because they are heavy, bulky items. Therefore, the space agencies are looking for sources of rocket fuel and consumables at an intermediate destination, the asteroid belt. Your class has been selected to plan a prospecting exped ...
Rocks in Space
... of tons of space debris. Nearly all of this burns up in the atmosphere: only a tiny fraction falls to the surface as recoverable meteorites. The most abundant component of this debris is cosmic dust, called micrometeorites: these are often not destroyed during their descent, but drift unnoticed to t ...
... of tons of space debris. Nearly all of this burns up in the atmosphere: only a tiny fraction falls to the surface as recoverable meteorites. The most abundant component of this debris is cosmic dust, called micrometeorites: these are often not destroyed during their descent, but drift unnoticed to t ...
Meteorites - indstate.edu
... This is a section from a stone chondrite meteorite that fell in 1852 in Harghita, Romania. (Copyright Calvin J. Hamilton) ...
... This is a section from a stone chondrite meteorite that fell in 1852 in Harghita, Romania. (Copyright Calvin J. Hamilton) ...
Asteroids
... look like points of light, just like stars. Asteroids are irregularly shaped because they do not have enough gravity to become round. They are also too small to maintain an atmosphere, and without internal heat they are not geologically active (Figure 1.1). Collisions with other bodies may break up ...
... look like points of light, just like stars. Asteroids are irregularly shaped because they do not have enough gravity to become round. They are also too small to maintain an atmosphere, and without internal heat they are not geologically active (Figure 1.1). Collisions with other bodies may break up ...
13. Remnants of Rock and Ice: Asteroids, Comets, and Pluto
... • Analysis of orbits shows where comets in the inner Solar System have come from. Based on the number of comets seen in the inner Solar System and the relatively short times during which comets can survive in the inner Solar System, we conclude that the Oort cloud and Kuiper belt must contain enormo ...
... • Analysis of orbits shows where comets in the inner Solar System have come from. Based on the number of comets seen in the inner Solar System and the relatively short times during which comets can survive in the inner Solar System, we conclude that the Oort cloud and Kuiper belt must contain enormo ...
The Adventure Is Waiting
... The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, the first asteroid of this group to be discovered by Karl Wilhelm Reinmuth. They are Earth-crosser asteroids. The Apollo asteroids travel just inside Earth’s orbit to 2/3rd of the way to Mars. Some can get very close t ...
... The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, the first asteroid of this group to be discovered by Karl Wilhelm Reinmuth. They are Earth-crosser asteroids. The Apollo asteroids travel just inside Earth’s orbit to 2/3rd of the way to Mars. Some can get very close t ...
5 Comets, Asteroids, and Meteors
... called asteroids, are too small and too numerous to be considered full-fledged planets. Most asteroids revolve around the sun between the orbits of Mars and Jupiter. This region of the solar system, shown in Figure 26, is called the asteroid belt. Astronomers have discovered more than 100,000 astero ...
... called asteroids, are too small and too numerous to be considered full-fledged planets. Most asteroids revolve around the sun between the orbits of Mars and Jupiter. This region of the solar system, shown in Figure 26, is called the asteroid belt. Astronomers have discovered more than 100,000 astero ...
Chapter 9 Remnants of Rock and Ice
... asteroid belt today. Most • How are meteorites related to asteroids in other regions of the asteroids? inner solar system accreted into • Most meteorites are pieces of one of the planets. asteroids. Primitive meteorites are essentially unchanged since the birth of the solar system. Processed ...
... asteroid belt today. Most • How are meteorites related to asteroids in other regions of the asteroids? inner solar system accreted into • Most meteorites are pieces of one of the planets. asteroids. Primitive meteorites are essentially unchanged since the birth of the solar system. Processed ...
Comets - Images
... made of ice. When they approach the Sun the ice starts to evaporate forming the coma, a halo around the nucleus of dust and gas. Radiation pressure from the Sun pushes some of this dust and gas outwards (away from the Sun) to form two tails - one straight and blue (gas and ions), the other curved an ...
... made of ice. When they approach the Sun the ice starts to evaporate forming the coma, a halo around the nucleus of dust and gas. Radiation pressure from the Sun pushes some of this dust and gas outwards (away from the Sun) to form two tails - one straight and blue (gas and ions), the other curved an ...
Family Space Day Overview - Lunar and Planetary Institute
... Large impacts are rare now, but were much more common during the early history of our solar system when the space debris was being swept up. The surfaces of Mercury, the Moon, and Mars are covered with impact craters, most of which scientists believe formed during the first half billion years of sol ...
... Large impacts are rare now, but were much more common during the early history of our solar system when the space debris was being swept up. The surfaces of Mercury, the Moon, and Mars are covered with impact craters, most of which scientists believe formed during the first half billion years of sol ...
DTU_9e_ch09 - University of San Diego Home Pages
... By measuring slight variations in the gravitational attraction of different materials under Earth’s surface, geologists create images of underground features. Concentric rings of the underground Chicxulub Crater (right inset) lie under a portion of the Yucatán Peninsula. This crater has been dated t ...
... By measuring slight variations in the gravitational attraction of different materials under Earth’s surface, geologists create images of underground features. Concentric rings of the underground Chicxulub Crater (right inset) lie under a portion of the Yucatán Peninsula. This crater has been dated t ...
Asteroids - Trimble County Schools
... Mathlide was calculated as having a fairly low density, probably a result of being very porous. It rotates every 17.5 days. ...
... Mathlide was calculated as having a fairly low density, probably a result of being very porous. It rotates every 17.5 days. ...
Chelyabinsk meteor
The Chelyabinsk meteor was a superbolide caused by a near-Earth asteroid that entered Earth's atmosphere over Russia on 15 February 2013 at about 09:20 YEKT (03:20 UTC), with a speed of 19.16 ± 0.15 kilometres per second (60,000–69,000 km/h or 40,000–42,900 mph). It quickly became a brilliant superbolide meteor over the southern Ural region. The light from the meteor was brighter than the Sun, up to 100 km away. It was observed over a wide area of the region and in neighbouring republics. Some eyewitnesses also felt intense heat from the fireball.On account of its high velocity and shallow angle of atmospheric entry, the object exploded in an air burst over Chelyabinsk Oblast, at a height of around 29.7 km (18.4 miles, 97,400 feet). The explosion generated a bright flash, producing a hot cloud of dust and gas that penetrated to 26.2 km, and many surviving small fragmentary meteorites, as well as a large shock wave. The bulk of the object's energy was absorbed by the atmosphere, with a total kinetic energy before atmospheric impact equivalent to approximately 500 kilotons of TNT (about 1.8 PJ), 20–30 times more energy than was released from the atomic bomb detonated at Hiroshima.The object was undetected before its atmospheric entry, in part because its radiant was close to the Sun. Its explosion created panic among local residents, and about 1,500 people were injured seriously enough to seek medical treatment. All of the injuries were due to indirect effects rather than the meteor itself, mainly from broken glass from windows that were blown in when the shock wave arrived, minutes after the superbolide's flash. Some 7,200 buildings in six cities across the region were damaged by the explosion's shock wave, and authorities scrambled to help repair the structures in sub-zero (°C) temperatures.With an estimated initial mass of about 12,000–13,000 metric tonnes (13,000–14,000 short tons, heavier than the Eiffel Tower), and measuring about 20 metres in diameter, it is the largest known natural object to have entered Earth's atmosphere since the 1908 Tunguska event, which destroyed a wide, remote, forested area of Siberia. The Chelyabinsk meteor is also the only meteor confirmed to have resulted in a large number of injuries.The earlier-predicted close approach of another, larger asteroid that same day, the roughly 30-metre 367943 Duende (at the time still known by its provisional designation 2012 DA14) occurred about 16 hours later; the very different orbits of the two objects showed they were unrelated to each other.