Comets
... -The comet’s nucleus has a surprising amount of minerals that formed in a high temperature environment (but comets are COLD in the outer solar system!). Material formed closer to our Sun or around another star altogether. -The 4.5 billion-year-old comet sulfides (sulfides are key to life). ...
... -The comet’s nucleus has a surprising amount of minerals that formed in a high temperature environment (but comets are COLD in the outer solar system!). Material formed closer to our Sun or around another star altogether. -The 4.5 billion-year-old comet sulfides (sulfides are key to life). ...
Whence Comets?
... dynamical studies, have caused a consists of elongated orbits with perihelia in as close as Uranus and the refractory grains, it is only a small fraction of the material near major rethinking of the origin of aphelia at 50 to 100 AU (up to about three times Neptune’s orbit). the surface of a comet. ...
... dynamical studies, have caused a consists of elongated orbits with perihelia in as close as Uranus and the refractory grains, it is only a small fraction of the material near major rethinking of the origin of aphelia at 50 to 100 AU (up to about three times Neptune’s orbit). the surface of a comet. ...
comet2
... comet Ikeya-Seki broke into three pieces, but they had a combined tail which was very bright. From Japan the comet's perihelion was at local noon and it was visible in the daytime. Comet Lovejoy More recently Australian amateur astronomer Terry Lovejoy discovered a sungrazer which reached perihelion ...
... comet Ikeya-Seki broke into three pieces, but they had a combined tail which was very bright. From Japan the comet's perihelion was at local noon and it was visible in the daytime. Comet Lovejoy More recently Australian amateur astronomer Terry Lovejoy discovered a sungrazer which reached perihelion ...
COMETS - Mount Holyoke College
... passing within about 240 km of the nucleus. The miss distance of 240 km was a compromise between the desire to approach as closely as possible to collect as much dust as possible vs. the concern about the possible presence of large particles, > 1 cm, that could damage the spacecraft. The spacecraft ...
... passing within about 240 km of the nucleus. The miss distance of 240 km was a compromise between the desire to approach as closely as possible to collect as much dust as possible vs. the concern about the possible presence of large particles, > 1 cm, that could damage the spacecraft. The spacecraft ...
Worksheet
... 5. Where were many of the comets whisked after the formed by the gas planets? b. Into the Kuiper Belt. 6. How many comets may be in the Kuiper Belt? c. Over 6 billion. 7. What happens to a comet as it approaches the Sun? c. All the frozen materials convert from ice to gaseous materials. 8. What is t ...
... 5. Where were many of the comets whisked after the formed by the gas planets? b. Into the Kuiper Belt. 6. How many comets may be in the Kuiper Belt? c. Over 6 billion. 7. What happens to a comet as it approaches the Sun? c. All the frozen materials convert from ice to gaseous materials. 8. What is t ...
Theme 10 – Leftovers: Comets
... After formation in the original Solar System nebula, a cometary nucleus may spend billions of years in the Oort Cloud or the Kuiper Belt Some small gravitational perturbation directs it inward The gravity of an inner planet (most likely Jupiter) changes its orbit, and it is captured into an orbit of ...
... After formation in the original Solar System nebula, a cometary nucleus may spend billions of years in the Oort Cloud or the Kuiper Belt Some small gravitational perturbation directs it inward The gravity of an inner planet (most likely Jupiter) changes its orbit, and it is captured into an orbit of ...
The Comet`s Tale Assessment
... 3. What is the period of a comet? a) the time it takes for the comet to travel once around the Sun b) the shortest distance from the Sun to the comet along the comet’s path c) the number of times the comet orbits the Sun in a millennium d) the amount of time between sightings of the comet from Eart ...
... 3. What is the period of a comet? a) the time it takes for the comet to travel once around the Sun b) the shortest distance from the Sun to the comet along the comet’s path c) the number of times the comet orbits the Sun in a millennium d) the amount of time between sightings of the comet from Eart ...
OAT Asteroids:Comets
... atmosphere and strike the ground with enough force to be vaporized and release large amounts of energy. They hit at 50 km/s, so a rock the size of a building can make a hole a mile across. ...
... atmosphere and strike the ground with enough force to be vaporized and release large amounts of energy. They hit at 50 km/s, so a rock the size of a building can make a hole a mile across. ...
Ten Important Comet Facts
... 2. Comets are composed of ices, dust and rocky debris carried from the early formation of the solar system about 4.5 billion years ago. 3. Comets are remnants from the cold, outer regions of the solar system. They are generally thought to come from two areas - the Oort Cloud and the Kuiper Belt. Bot ...
... 2. Comets are composed of ices, dust and rocky debris carried from the early formation of the solar system about 4.5 billion years ago. 3. Comets are remnants from the cold, outer regions of the solar system. They are generally thought to come from two areas - the Oort Cloud and the Kuiper Belt. Bot ...
Three basic types of asteroids
... cooled off quicker than larger objects, so they underwent less differentiation. ...
... cooled off quicker than larger objects, so they underwent less differentiation. ...
Clearing stage: Oort cloud formation
... Figure 1. Transmission electron micrographs of GEMS within thin sections of chondritic IDPs. (A) Bright-field image of GEMS embedded in amorphous carbonaceous material (C). Inclusions are FeNi metal (kamacite) and Fe sulfides. (B) Dark-field image. Bright inclusions are metal and sulfides; uniform g ...
... Figure 1. Transmission electron micrographs of GEMS within thin sections of chondritic IDPs. (A) Bright-field image of GEMS embedded in amorphous carbonaceous material (C). Inclusions are FeNi metal (kamacite) and Fe sulfides. (B) Dark-field image. Bright inclusions are metal and sulfides; uniform g ...
No Slide Title
... Figure 1. Transmission electron micrographs of GEMS within thin sections of chondritic IDPs. (A) Bright-field image of GEMS embedded in amorphous carbonaceous material (C). Inclusions are FeNi metal (kamacite) and Fe sulfides. (B) Dark-field image. Bright inclusions are metal and sulfides; uniform g ...
... Figure 1. Transmission electron micrographs of GEMS within thin sections of chondritic IDPs. (A) Bright-field image of GEMS embedded in amorphous carbonaceous material (C). Inclusions are FeNi metal (kamacite) and Fe sulfides. (B) Dark-field image. Bright inclusions are metal and sulfides; uniform g ...
Stony-Iron Meteorites are the Most Exotic of All Space Debris Found
... the skies near Chihuahua, Mexico, before impact. ...
... the skies near Chihuahua, Mexico, before impact. ...
August05 - Holt Planetarium
... of the original expectations, which was from 50 to 250 metres. The image depicts the first moments after Deep Impact's probe interfaced with comet Tempel 1. ...
... of the original expectations, which was from 50 to 250 metres. The image depicts the first moments after Deep Impact's probe interfaced with comet Tempel 1. ...
The Deep Impact flyby spacecraft (upper L)
... After releasing the impactor, the flyby spacecraft maneuvers to a new path that, at closest approach, passes 500 km. (300 mi.) from the comet. The flyby observes & records the impact, the ejected material blasted from the crater and the structure and composition of ...
... After releasing the impactor, the flyby spacecraft maneuvers to a new path that, at closest approach, passes 500 km. (300 mi.) from the comet. The flyby observes & records the impact, the ejected material blasted from the crater and the structure and composition of ...
Deep Impact (spacecraft)
Deep Impact was a NASA space probe launched from Cape Canaveral Air Force Station at 18:47 UTC on January 12, 2005. It was designed to study the interior composition of the comet Tempel 1 (9P/Tempel), by releasing an impactor into the comet. At 05:52 UTC on July 4, 2005, the impactor successfully collided with the comet's nucleus. The impact excavated debris from the interior of the nucleus, forming an impact crater. Photographs taken by the spacecraft showed the comet to be more dusty and less icy than had been expected. The impact generated an unexpectedly large and bright dust cloud, obscuring the view of the impact crater.Previous space missions to comets, such as Giotto and Stardust, were fly-by missions. These missions were able to photograph and examine only the surfaces of cometary nuclei, and even then from considerable distances. The Deep Impact mission was the first to eject material from a comet's surface, and the mission garnered large publicity from the media, international scientists, and amateur astronomers.Upon the completion of its primary mission, proposals were made to further utilize the spacecraft. Consequently, Deep Impact flew by Earth on December 31, 2007 on its way to an extended mission, designated EPOXI, with a dual purpose to study extrasolar planets and comet Hartley 2 (103P/Hartley).