Make a Comet Motion Flip Book
... blows away from the Sun, causes the tail to always point away from the Sun in the same way that smoke from a smoke stack moves away from the direction of the wind. • Notice when you flip the book that the comet moves slowly in its orbit when it is far from the Sun and quickly when it is near to the ...
... blows away from the Sun, causes the tail to always point away from the Sun in the same way that smoke from a smoke stack moves away from the direction of the wind. • Notice when you flip the book that the comet moves slowly in its orbit when it is far from the Sun and quickly when it is near to the ...
The Blurring Distinction between Asteroids and Comets
... are dominated by dust, not gas. Therefore, while main belt comets have a superficial resemblance to classical comets, there is still a gulf between their behaviors. If there is a continuum it is not known yet. Exactly what is going on with main belt comets is debated among astronomers. Much of the c ...
... are dominated by dust, not gas. Therefore, while main belt comets have a superficial resemblance to classical comets, there is still a gulf between their behaviors. If there is a continuum it is not known yet. Exactly what is going on with main belt comets is debated among astronomers. Much of the c ...
Jovian Planet Systems
... Rings are short-lived yet ubiquitous • Rings form from dust created in impacts on moons orbiting the Jovian planets. • There must be a continuous replacement of tiny particles. – The tiny particles that make up the rings are subject to non-gravitational forces (photon pressure, solar wind) that pus ...
... Rings are short-lived yet ubiquitous • Rings form from dust created in impacts on moons orbiting the Jovian planets. • There must be a continuous replacement of tiny particles. – The tiny particles that make up the rings are subject to non-gravitational forces (photon pressure, solar wind) that pus ...
HS The Solar System
... Humans’ view of the solar system has evolved as technology and scientific knowledge have increased. The ancient Greeks identified five of the planets and for many centuries they were the only planets known. Since then, scientists have discovered two more planets, many other solar-system objects and ...
... Humans’ view of the solar system has evolved as technology and scientific knowledge have increased. The ancient Greeks identified five of the planets and for many centuries they were the only planets known. Since then, scientists have discovered two more planets, many other solar-system objects and ...
The Solar System
... The Solar Dynamics Observatory is a NASA spacecraft launched in early 2010 is obtaining IMAX-like images of the sun every second of the day, generating more data than any NASA mission in history. The data will allow researchers to learn about solar storms and other phenomena that can cause blackouts ...
... The Solar Dynamics Observatory is a NASA spacecraft launched in early 2010 is obtaining IMAX-like images of the sun every second of the day, generating more data than any NASA mission in history. The data will allow researchers to learn about solar storms and other phenomena that can cause blackouts ...
Solar System Exploration - Lunar and Planetary Institute
... The Solar System — our Sun’s system of planets, moons, and smaller debris — is humankind’s cosmic backyard. Small by factors of millions compared to interstellar distances, the spaces between the planets are daunting, but technologically surmountable. And it is within this cosmic backyard that the i ...
... The Solar System — our Sun’s system of planets, moons, and smaller debris — is humankind’s cosmic backyard. Small by factors of millions compared to interstellar distances, the spaces between the planets are daunting, but technologically surmountable. And it is within this cosmic backyard that the i ...
Embedding Comets in the Asteroid Belt - SwRI Boulder
... equals to 1/2). This event triggered a global instability in the orbits of the planets that led to a violent reorganization of the outer Solar System. Uranus and Neptune penetrated the trans-planetary disk, scattering its inhabitants throughout the Solar System. The interaction between the ice giant ...
... equals to 1/2). This event triggered a global instability in the orbits of the planets that led to a violent reorganization of the outer Solar System. Uranus and Neptune penetrated the trans-planetary disk, scattering its inhabitants throughout the Solar System. The interaction between the ice giant ...
The potential meteoroid streams crossing the orbits of terrestrial
... 1. Introduction During a year, an observer on the surface of the Earth can observe several regular meteor showers. It is well known that the particles striking the Earth’s atmosphere and producing these showers originate in cometary or asteroidal parent bodies in orbits passing close to the orbit of ...
... 1. Introduction During a year, an observer on the surface of the Earth can observe several regular meteor showers. It is well known that the particles striking the Earth’s atmosphere and producing these showers originate in cometary or asteroidal parent bodies in orbits passing close to the orbit of ...
Making Planetesimals - Department of the Geophysical Sciences
... petrography of meteorites provide direct confirmation of aqueous alteration, melting, fractionation, and thermal metamorphism among the inner asteroids (Zolensky and McSween, 1988; Farinella et al., 1993; Brearley and Jones, 1998). Because the most common grains in the ISM (silicates and carbonaceou ...
... petrography of meteorites provide direct confirmation of aqueous alteration, melting, fractionation, and thermal metamorphism among the inner asteroids (Zolensky and McSween, 1988; Farinella et al., 1993; Brearley and Jones, 1998). Because the most common grains in the ISM (silicates and carbonaceou ...
LUNAR TIDAL RECESSION. James G. Williams, Dale H. Boggs, and
... with its oceans, rocky planets and satellites, icy satellites and Kuiper belt objects, and the four outer planets with their massive atmospheres. Tidal evolution also affects many exoplanets. In this abstract we summarize knowledge of the secular rates of change of the lunar orbital elements and the ...
... with its oceans, rocky planets and satellites, icy satellites and Kuiper belt objects, and the four outer planets with their massive atmospheres. Tidal evolution also affects many exoplanets. In this abstract we summarize knowledge of the secular rates of change of the lunar orbital elements and the ...
Minor bodies - Polarisation.eu
... - Planetesimals form further than Neptune. - Made of ice because they are further than the frost line. - Not forming large planets because of low density and resonances with jovian planets. - Planetesimals remain in the ecliptic plane. ...
... - Planetesimals form further than Neptune. - Made of ice because they are further than the frost line. - Not forming large planets because of low density and resonances with jovian planets. - Planetesimals remain in the ecliptic plane. ...
GRAIL
... • Extend knowledge gained on the internal structure and thermal evolution of the Moon to other terrestrial planets • Reduce risk to future lunar robotic or human science and exploration missions by providing a high resolution, global gravity field that will eliminate gravity uncertainties for precis ...
... • Extend knowledge gained on the internal structure and thermal evolution of the Moon to other terrestrial planets • Reduce risk to future lunar robotic or human science and exploration missions by providing a high resolution, global gravity field that will eliminate gravity uncertainties for precis ...
Cosmic Collisions
... • How the various theories of the origin of the Moon came to be proposed, and the observations made recently that favor the Impact Theory. • The story of Walter and Luis Alvarez, their identification of the impact nature of the K/T boundary, and the (relatively) acceptance of their ideas due to the ...
... • How the various theories of the origin of the Moon came to be proposed, and the observations made recently that favor the Impact Theory. • The story of Walter and Luis Alvarez, their identification of the impact nature of the K/T boundary, and the (relatively) acceptance of their ideas due to the ...
Astronomy for Kids - Uranus
... Although the Voyager spacecraft visited the seventh planet during its epic journey through our solar system, the pictures it sent back from Uranus were somewhat disappointing. We had hoped to see some color bands like there are on Jupiter or at least some faint colors, but the face the planet presen ...
... Although the Voyager spacecraft visited the seventh planet during its epic journey through our solar system, the pictures it sent back from Uranus were somewhat disappointing. We had hoped to see some color bands like there are on Jupiter or at least some faint colors, but the face the planet presen ...
Chapter 11: Our Solar System
... called Kepler’s first law. Figure 3 At what part of an elliptical orbit is the Sun located? ...
... called Kepler’s first law. Figure 3 At what part of an elliptical orbit is the Sun located? ...
Voyage: A Journey through our Solar System Grades 5
... Uranus’s rotation axis, however, is almost lying within its orbital plane. The cause of this unique feature is not certain, but it has been suggested that it was caused by an impact of a large object, such as a large asteroid or moon. Giant impacts like this were common during the early history of t ...
... Uranus’s rotation axis, however, is almost lying within its orbital plane. The cause of this unique feature is not certain, but it has been suggested that it was caused by an impact of a large object, such as a large asteroid or moon. Giant impacts like this were common during the early history of t ...
eROSITA Mission Definition Document
... rate were about two orders of magnitude higher in the early universe than today. The decline of this activity occurred at a surprisingly recent stage in cosmic history and is as yet not understood. In particular, deep X-ray surveys have shown, that lower-luminosity AGN (Seyfert galaxies) show a maxi ...
... rate were about two orders of magnitude higher in the early universe than today. The decline of this activity occurred at a surprisingly recent stage in cosmic history and is as yet not understood. In particular, deep X-ray surveys have shown, that lower-luminosity AGN (Seyfert galaxies) show a maxi ...
Chapter 25: The Solar System Introduction to the Solar System
... a disk with the Sun at the center. This painting was made by an artist; it Formation of the Sun and Planets As gravity pulled matter into the center of the disk, the density and pressure increased at the center. When the pressure in the center was high enough that nuclear fusion reactions started in ...
... a disk with the Sun at the center. This painting was made by an artist; it Formation of the Sun and Planets As gravity pulled matter into the center of the disk, the density and pressure increased at the center. When the pressure in the center was high enough that nuclear fusion reactions started in ...
The Night Sky
... • Mars and Uranus are in conjunction this evening, 0.6° apart (as seen around the time of nightfall for the Americas). Outdoors, spot Mars to the upper left of Venus blazing in the west. Mars is magnitude 1.3; Uranus is only one-seventieth as bright at magnitude 5.9; you'll need at least binoculars. ...
... • Mars and Uranus are in conjunction this evening, 0.6° apart (as seen around the time of nightfall for the Americas). Outdoors, spot Mars to the upper left of Venus blazing in the west. Mars is magnitude 1.3; Uranus is only one-seventieth as bright at magnitude 5.9; you'll need at least binoculars. ...
The Space Files: The Inner Solar System
... use, plus a comprehensive teaching program containing a wide range of activities and ideas for interaction between all content areas. Our authors, educators, and consultants have written and reviewed the AIMS Teaching Modules to align with the Educate America Act: Goals 2000. This ATM, with its clea ...
... use, plus a comprehensive teaching program containing a wide range of activities and ideas for interaction between all content areas. Our authors, educators, and consultants have written and reviewed the AIMS Teaching Modules to align with the Educate America Act: Goals 2000. This ATM, with its clea ...
The Night Sky
... • The waning gibbous Moon rises late this evening and is well up by midnight. By then you can see that it forms an irregular quadrilateral, about 10° across, with bright Mars, Saturn, and fainter Antares. They're in the south-southwest by the time dawn brightens on Monday morning the 25th, as shown ...
... • The waning gibbous Moon rises late this evening and is well up by midnight. By then you can see that it forms an irregular quadrilateral, about 10° across, with bright Mars, Saturn, and fainter Antares. They're in the south-southwest by the time dawn brightens on Monday morning the 25th, as shown ...
Activity 06 - Total Solar Eclipse 2012
... Year Level: Years 3 to 12 (typically 8 to 18 years of age). Background: A number of words will be used in the class that have various meanings for different aspects of eclipses. A variety of crosswords have been developed to allow students from the school years 3 – 6, 7 – 10 and 11 to 12 to learn th ...
... Year Level: Years 3 to 12 (typically 8 to 18 years of age). Background: A number of words will be used in the class that have various meanings for different aspects of eclipses. A variety of crosswords have been developed to allow students from the school years 3 – 6, 7 – 10 and 11 to 12 to learn th ...
Chapter 14- Solar System
... that revolves around a planet. Astronomers have also identified many other objects in the solar system, such as comets and asteroids. ~ Today we know that the solar system consists of the sun, the planets and their moons, and several kinds of smaller objects that revolve around the~ sun. Measuring D ...
... that revolves around a planet. Astronomers have also identified many other objects in the solar system, such as comets and asteroids. ~ Today we know that the solar system consists of the sun, the planets and their moons, and several kinds of smaller objects that revolve around the~ sun. Measuring D ...
Laskar.pdf
... allowed new possible scenario for driving Venus to 180 degrees obliquity (Laskar and Robutel, 1993, Yoder,1997), but some difficulties remained. Recently, we have shown that due to the dissipative effects, there are only 4 possible final states for Venus’ rotation, and only 3 of them are really reachabl ...
... allowed new possible scenario for driving Venus to 180 degrees obliquity (Laskar and Robutel, 1993, Yoder,1997), but some difficulties remained. Recently, we have shown that due to the dissipative effects, there are only 4 possible final states for Venus’ rotation, and only 3 of them are really reachabl ...
Space News Update
... rise in early evening. In early evening at this time of year, the Great Square of Pegasus balances on one corner high in the west. The vast Andromeda-Pegasus constellation complex runs all the way from near the zenith (Andromeda's foot) down through the Great Square (Pegasus's body) almost to the we ...
... rise in early evening. In early evening at this time of year, the Great Square of Pegasus balances on one corner high in the west. The vast Andromeda-Pegasus constellation complex runs all the way from near the zenith (Andromeda's foot) down through the Great Square (Pegasus's body) almost to the we ...