4. Building of a Habitable Planet HERVE´ MARTIN FRANCIS
... Busso 1998). However, the energy emitted by all these sources has been largely re-irradiated into space and consequently it did not efficiently contribute to planetary differentiation. Gravitational energy appears to be the main source of planetary energy for Mars-size objects and larger: the temperatu ...
... Busso 1998). However, the energy emitted by all these sources has been largely re-irradiated into space and consequently it did not efficiently contribute to planetary differentiation. Gravitational energy appears to be the main source of planetary energy for Mars-size objects and larger: the temperatu ...
Document
... • Although the role of dust in the accretion mechanism was probably relatively small, it could have played an important role in the evolution of the terrestrial planets. Specifically, the dust could be more efficient than larger bodies in delivery of organic (prebiogenic) or even biogenic matter to ...
... • Although the role of dust in the accretion mechanism was probably relatively small, it could have played an important role in the evolution of the terrestrial planets. Specifically, the dust could be more efficient than larger bodies in delivery of organic (prebiogenic) or even biogenic matter to ...
THE CONTRIBUTIONS OF COMETS TO
... Icy planetesimals also originated in the subnebulae surrounding the giant planets at the time they formed. Some of these accreted to form the icy satellites; others crashed into the forming planets, and still others could have been scattered into the Oort cloud. Finally, several objects in the outer ...
... Icy planetesimals also originated in the subnebulae surrounding the giant planets at the time they formed. Some of these accreted to form the icy satellites; others crashed into the forming planets, and still others could have been scattered into the Oort cloud. Finally, several objects in the outer ...
An “Asteroid Garden” for the Gainesville Solar Walk And an Asteroid
... spacecraft flying through the asteroid belt would probably never encounter or see an asteroid. Indeed, collisions between asteroids are now rare and a spacecraft passing through the asteroid belt has little chance of colliding with one. (Asteroids may have formed from planetary accretion in the earl ...
... spacecraft flying through the asteroid belt would probably never encounter or see an asteroid. Indeed, collisions between asteroids are now rare and a spacecraft passing through the asteroid belt has little chance of colliding with one. (Asteroids may have formed from planetary accretion in the earl ...
3. Meteorites and Asteroids
... other materials with approximately the same composition, are undifferentiated. They have not undergone any process, like melting, that segregates elements because of their chemical affinities or properties. All other meteorites (irons, stony-irons, and achondrites) are differentiated. They depart fr ...
... other materials with approximately the same composition, are undifferentiated. They have not undergone any process, like melting, that segregates elements because of their chemical affinities or properties. All other meteorites (irons, stony-irons, and achondrites) are differentiated. They depart fr ...
02 Earth in Space - Burnet Middle School
... 1. The daily rising and falling levels of the oceans and other large bodies of water ...
... 1. The daily rising and falling levels of the oceans and other large bodies of water ...
The Atmosphere of Uranus - Massachusetts Institute of Technology
... superabundant, the CH 4 haze would occur at slightly lower pressures, N0.1 to 0.4 bars (Priim and Lewis, 1973). The radiative time constant for Uranus (Table II) is about 600 Earth years, which is long compared to both its orbital and rotation periods (cf. Table I). Therefore diurnal and seasonal ch ...
... superabundant, the CH 4 haze would occur at slightly lower pressures, N0.1 to 0.4 bars (Priim and Lewis, 1973). The radiative time constant for Uranus (Table II) is about 600 Earth years, which is long compared to both its orbital and rotation periods (cf. Table I). Therefore diurnal and seasonal ch ...
Comets- Visitors from the Frozen Edge of the Solar System
... and rock fragments that continue to circle the Sun on their own orbits. If this swarm of debris happens to cross the Earth’s orbital path, it will generate an annual meteor shower when the Earth passes through this cloud at the same time every year. As the debris enters the atmosphere, it will decel ...
... and rock fragments that continue to circle the Sun on their own orbits. If this swarm of debris happens to cross the Earth’s orbital path, it will generate an annual meteor shower when the Earth passes through this cloud at the same time every year. As the debris enters the atmosphere, it will decel ...
Solar System Quiz
... a. moves in a predictable manner. b. is perpendicular to its plane of orbit. ...
... a. moves in a predictable manner. b. is perpendicular to its plane of orbit. ...
solar system debris (chapter 14)
... from Earth, and thus the only naked-eye comet that might appear twice in a human lifetime. Other naked-eye comets may be brighter and more spectacular, but will appear only once in thousands of years. ...
... from Earth, and thus the only naked-eye comet that might appear twice in a human lifetime. Other naked-eye comets may be brighter and more spectacular, but will appear only once in thousands of years. ...
The Main Points Asteroids
... between Mars and Jupiter or in the Kuiper Belt beyond Neptune, but many exist in near-Earth space too ...
... between Mars and Jupiter or in the Kuiper Belt beyond Neptune, but many exist in near-Earth space too ...
Chapter 14- Solar System
... Galileo knew the same planets that the ancient Greeks had known-Mercury, Venus, Earth, Mars, Jupiter, and Saturn. Since Galileo's time, astronomers have discovered two more planets-Uranus and Neptune, as well as Pluto, which is no longer considered to be a planet. The planets vary greatly in size an ...
... Galileo knew the same planets that the ancient Greeks had known-Mercury, Venus, Earth, Mars, Jupiter, and Saturn. Since Galileo's time, astronomers have discovered two more planets-Uranus and Neptune, as well as Pluto, which is no longer considered to be a planet. The planets vary greatly in size an ...
Lecture 10. Roche Limit / Comets
... models are improbable and/or struggle to account for basic properties of the rings, including their icy composition. Saturn has only one large satellite, Titan, whereas Jupiter has four large satellites; additional large satellites probably existed originally but were lost as they spiralled into Sat ...
... models are improbable and/or struggle to account for basic properties of the rings, including their icy composition. Saturn has only one large satellite, Titan, whereas Jupiter has four large satellites; additional large satellites probably existed originally but were lost as they spiralled into Sat ...
Lecture13.v3 - Lick Observatory
... gravity strongly perturbed the orbits of almost all the asteroids • Most of them got nudged into highly eccentric orbits, from which they either leave the Solar System or head inwards toward the Sun • A fraction of the asteroids headed inwards may have hit the early Earth! Page 26 ...
... gravity strongly perturbed the orbits of almost all the asteroids • Most of them got nudged into highly eccentric orbits, from which they either leave the Solar System or head inwards toward the Sun • A fraction of the asteroids headed inwards may have hit the early Earth! Page 26 ...
Theme 10.1 -- Leftovers: Comets
... of years they were seen in a variety of ways. Aristotle, for one, believed that they were caused by gases rising up from the Earth into the atmosphere and igniting in some way. The ancient Chinese believed that they were celestial omens in the heavens that marked important events such as the death o ...
... of years they were seen in a variety of ways. Aristotle, for one, believed that they were caused by gases rising up from the Earth into the atmosphere and igniting in some way. The ancient Chinese believed that they were celestial omens in the heavens that marked important events such as the death o ...
Asteroids - Elements Magazine
... during the year it was found. Formal names of asteroids are given once the official orbit is confirmed. This name consists of a number (giving the order in which it was discovered) and a name (which could be its discoverer, but is often the same as its provisional designation). Example: 101955 Bennu ...
... during the year it was found. Formal names of asteroids are given once the official orbit is confirmed. This name consists of a number (giving the order in which it was discovered) and a name (which could be its discoverer, but is often the same as its provisional designation). Example: 101955 Bennu ...
COMETS! - Santa Ana College
... through the inner solar system. However, a giant comet or maybe an asteroid struck the Earth 65 million years ago, and may be responsible for the death of the dinosaurs. Other comets have also struck the Earth. If a comet struck the Earth again, it could cause a large catastrophe. However, scientist ...
... through the inner solar system. However, a giant comet or maybe an asteroid struck the Earth 65 million years ago, and may be responsible for the death of the dinosaurs. Other comets have also struck the Earth. If a comet struck the Earth again, it could cause a large catastrophe. However, scientist ...
Comet Facts, Myths, and Legends
... spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid meteor shower. Comet Swift-Tuttle is noted as the comet some scientists predicted could one day collide with Earth because ...
... spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid meteor shower. Comet Swift-Tuttle is noted as the comet some scientists predicted could one day collide with Earth because ...
that provides the scientific rationale for sample return from asteroids
... System and have recorded within them the radiation, thermal, nuclear, and chemical processes that forged our planetary system. As essentially all of the elements beyond hydrogen and helium are formed in stars, presolar grains provide a unique way to study the origin of the elements. Astronomical obs ...
... System and have recorded within them the radiation, thermal, nuclear, and chemical processes that forged our planetary system. As essentially all of the elements beyond hydrogen and helium are formed in stars, presolar grains provide a unique way to study the origin of the elements. Astronomical obs ...
Exploring Comets
... coma so that it flows around the nucleus and forms a fanned out tail behind it extending millions of miles through space. 7. We see a comet's coma and tail because sunlight reflects off the dust (in the coma and dust tail) and because the energy from the Sun excites some molecules so that they glow ...
... coma so that it flows around the nucleus and forms a fanned out tail behind it extending millions of miles through space. 7. We see a comet's coma and tail because sunlight reflects off the dust (in the coma and dust tail) and because the energy from the Sun excites some molecules so that they glow ...
Discovery
... ejected from the surface of Ida in a recent impact. However, astronomers now believe that the YORP effect may be responsible for the formation of Dactyl and satellites of other smaller asteroids. Specifically, when sunlight hits one of these smaller asteroids, the material absorbs some of the radiat ...
... ejected from the surface of Ida in a recent impact. However, astronomers now believe that the YORP effect may be responsible for the formation of Dactyl and satellites of other smaller asteroids. Specifically, when sunlight hits one of these smaller asteroids, the material absorbs some of the radiat ...
PDF only - at www.arxiv.org.
... reached at t∼ 219301 years where the gravitational influences of planets are not significant anymore. The asteroid probably escapes from our solar system. Based on Figure 3, consider the maximum in abscissa, tmax ∼ 219301 years from now, where semimajor axis and eccentricity are 143.2 AU and 0.9737, ...
... reached at t∼ 219301 years where the gravitational influences of planets are not significant anymore. The asteroid probably escapes from our solar system. Based on Figure 3, consider the maximum in abscissa, tmax ∼ 219301 years from now, where semimajor axis and eccentricity are 143.2 AU and 0.9737, ...
Introduction to Comets - Mr. Hill`s Science Website
... from the Sun. Gas-Ion Tail — Forms when the solar wind separates gases from the coma, pushing them outward away from the Sun. Inner Solar System — The path of the Solar System between the Sun and the orbit of Jupiter Meteor Shower —Many meteors are seen in the night sky as a result of the Earth pass ...
... from the Sun. Gas-Ion Tail — Forms when the solar wind separates gases from the coma, pushing them outward away from the Sun. Inner Solar System — The path of the Solar System between the Sun and the orbit of Jupiter Meteor Shower —Many meteors are seen in the night sky as a result of the Earth pass ...
Cosmic Collisions
... assessment and management! Some observations that may be useful in a class discussion include, but are not limited to: • The Earth gets hit more often than we originally thought, with many more small impacts occurring than larger ones. Small impactors (up to a few meters across) either burn up in th ...
... assessment and management! Some observations that may be useful in a class discussion include, but are not limited to: • The Earth gets hit more often than we originally thought, with many more small impacts occurring than larger ones. Small impactors (up to a few meters across) either burn up in th ...