Facilitator Information - Lunar and Planetary Institute
... A gas giant is a large planet that is mostly made of gas (or gas compressed into a liquid). Unlike rocky planets, gas giants do not have a well-defined surface. There are four gas giants in our solar system: Jupiter, Saturn, Uranus, and Neptune. These are also known as the Jovian planets. Jupiter Ju ...
... A gas giant is a large planet that is mostly made of gas (or gas compressed into a liquid). Unlike rocky planets, gas giants do not have a well-defined surface. There are four gas giants in our solar system: Jupiter, Saturn, Uranus, and Neptune. These are also known as the Jovian planets. Jupiter Ju ...
Better Than Earth
... within our catalogue of confirmed and candidate exoplanets. The first exoplanets found in the mid-1990s were all gas giants similar in mass to Jupiter and orbiting far too close to their stars to harbor any life. Yet as planet-hunting techniques have im proved over time, astronomers have begun fin ...
... within our catalogue of confirmed and candidate exoplanets. The first exoplanets found in the mid-1990s were all gas giants similar in mass to Jupiter and orbiting far too close to their stars to harbor any life. Yet as planet-hunting techniques have im proved over time, astronomers have begun fin ...
Other Solar Systems Around Other Stars
... Encounters w/ Other Planets • Planets should, by physics, form in fairly circular orbits with plenty of space between them by the time formation is about done. • But resonances can amplify eccentricity of an orbit, to the point of orbit-crossing (close encounter possible!), and then the two planets ...
... Encounters w/ Other Planets • Planets should, by physics, form in fairly circular orbits with plenty of space between them by the time formation is about done. • But resonances can amplify eccentricity of an orbit, to the point of orbit-crossing (close encounter possible!), and then the two planets ...
Orbits and Applications
... A: The velocity is negative, i.e. along the -x direction. B: The acceleration is negative. C: The total energy is negative. D: The kinetic energy is positive. E: None of these statements is always true. F = -dU(x)/dx, so the FORCE at point A is negative. (Therefore the acceleration is negative). We ...
... A: The velocity is negative, i.e. along the -x direction. B: The acceleration is negative. C: The total energy is negative. D: The kinetic energy is positive. E: None of these statements is always true. F = -dU(x)/dx, so the FORCE at point A is negative. (Therefore the acceleration is negative). We ...
Distance from Sun
... Mass 1.898x1027kg Distance from Sun 778.3 million km Distance from Earth Max 968 million km, Min 598 million km Atmosphere/weather Mainly hydrogen and helium Temperature -48ºC at the surface20,000ºC at the core Length of year 4,330.6 Earth days Length of day 10 hours 40 minutes Moons/satellites 63 C ...
... Mass 1.898x1027kg Distance from Sun 778.3 million km Distance from Earth Max 968 million km, Min 598 million km Atmosphere/weather Mainly hydrogen and helium Temperature -48ºC at the surface20,000ºC at the core Length of year 4,330.6 Earth days Length of day 10 hours 40 minutes Moons/satellites 63 C ...
Asteroids and Comets
... because they are too faint to be seen directly and because their stable orbits do not bring them closer to the Sun The total number of comets within the sphere of influence of our Sun could therefore be on the order of ten trillion (1013)! Their total mass would be similar to that of 1000 Earths Com ...
... because they are too faint to be seen directly and because their stable orbits do not bring them closer to the Sun The total number of comets within the sphere of influence of our Sun could therefore be on the order of ten trillion (1013)! Their total mass would be similar to that of 1000 Earths Com ...
Celestial Motions
... 1. Stars are so far away that stellar parallax is too small to notice with the naked eye. 2. Earth does not orbit Sun; it is the center of the universe. With rare exceptions, such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not think the stars could be that far a ...
... 1. Stars are so far away that stellar parallax is too small to notice with the naked eye. 2. Earth does not orbit Sun; it is the center of the universe. With rare exceptions, such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not think the stars could be that far a ...
Origins: Earth is Born
... fiery ball of rock covered with lava. DS CALTECH: As you go back to these very earliest times, the first few hundred million years, the Earth was so energetic and was recycling materials so vigorously and melting material, that rocks from that period have not survived. NdGT: So to reconstruct the st ...
... fiery ball of rock covered with lava. DS CALTECH: As you go back to these very earliest times, the first few hundred million years, the Earth was so energetic and was recycling materials so vigorously and melting material, that rocks from that period have not survived. NdGT: So to reconstruct the st ...
Astro 10 Lecture 1 - Intro to Astronomy
... – Celestial objects that shine by reflected light should be brighter in summer – Summer should be at the same time all over the Earth ...
... – Celestial objects that shine by reflected light should be brighter in summer – Summer should be at the same time all over the Earth ...
Chapter_19_Lecture
... • Most researchers believe that Earth and the other planets formed at essentially the same time from the same primordial material as the Sun • Nebular hypothesis Solar system evolved from an enormous rotating cloud called the solar nebula Nebula was composed mostly of hydrogen and helium ...
... • Most researchers believe that Earth and the other planets formed at essentially the same time from the same primordial material as the Sun • Nebular hypothesis Solar system evolved from an enormous rotating cloud called the solar nebula Nebula was composed mostly of hydrogen and helium ...
SWFAS Jan 16 2nd draft - Southwest Florida Astronomical Society
... Galileo observed with his telescope what he described at the time as "three fixed stars, totally invisible by their smallness", all close to Jupiter, and lying on a straight line through it. Observations on subsequent nights showed that the positions of these "stars" relative to Jupiter were changin ...
... Galileo observed with his telescope what he described at the time as "three fixed stars, totally invisible by their smallness", all close to Jupiter, and lying on a straight line through it. Observations on subsequent nights showed that the positions of these "stars" relative to Jupiter were changin ...
File
... Mars gets it red color from its ferrous soil. In the previous sentence, what does ferrous mean? Use context clues. If you can't find it, check on ...
... Mars gets it red color from its ferrous soil. In the previous sentence, what does ferrous mean? Use context clues. If you can't find it, check on ...
Science Program — Grade 5
... Asteroids Asteroids are rocky fragments found in a band (or belt) orbiting around the Sun. The “asteroid belt” can be found between Mars and Jupiter. Asteroids vary in size from several hundred km across to the size of a pebble. They are left over from when the solar system formed over 4.5 billion y ...
... Asteroids Asteroids are rocky fragments found in a band (or belt) orbiting around the Sun. The “asteroid belt” can be found between Mars and Jupiter. Asteroids vary in size from several hundred km across to the size of a pebble. They are left over from when the solar system formed over 4.5 billion y ...
Mercury, the closest planet to the Sun, is a small
... Mercury, the closest planet to the Sun, is a small, cratered world with no atmosphere. Mercury was very hot when it formed. As it cooled off it shrank by a few kilometres, creating giant cliffs still visible on its surface today (right). Mercury’s temperature reaches a high of 425 C on its day side ...
... Mercury, the closest planet to the Sun, is a small, cratered world with no atmosphere. Mercury was very hot when it formed. As it cooled off it shrank by a few kilometres, creating giant cliffs still visible on its surface today (right). Mercury’s temperature reaches a high of 425 C on its day side ...
Formation of the Sun and the Planets and the Planets
... We will discuss the most popular theory of solar system formation at the moment, the nebular theory. In this theory, the solar system formed out of a huge cloud of interstellar gas and dust. This theory is motivated by a great many observations. The most compelling of these have been quite recent. T ...
... We will discuss the most popular theory of solar system formation at the moment, the nebular theory. In this theory, the solar system formed out of a huge cloud of interstellar gas and dust. This theory is motivated by a great many observations. The most compelling of these have been quite recent. T ...
The Solar System - RHIG - Wayne State University
... Greek scholars were translated into Arabic. Astronomers thoroughly cataloged the heavens, giving many of the stars their present Arabic names. Work had continued on developing Ptolemy’s model to make it more consistent with these improved observations. New cycles were added and the speed of rotation ...
... Greek scholars were translated into Arabic. Astronomers thoroughly cataloged the heavens, giving many of the stars their present Arabic names. Work had continued on developing Ptolemy’s model to make it more consistent with these improved observations. New cycles were added and the speed of rotation ...
Benchmarks from 4C, Processes that Shape the Earth
... deep interior and the action of gravitational forces on regions of different density. 4C Processes that Shape the Earth (9-12)#4 The solid crust of the earth—including both the continents and the ocean basins—consists of separate plates that ride on a denser, hot, gradually deformable layer of the e ...
... deep interior and the action of gravitational forces on regions of different density. 4C Processes that Shape the Earth (9-12)#4 The solid crust of the earth—including both the continents and the ocean basins—consists of separate plates that ride on a denser, hot, gradually deformable layer of the e ...
File
... Earth was originally born as a twin to the planet Theia, which was about half of Earth, about the size of Mars. The two planets shared an orbit for several million years until they collided (crash). Earth absorbed Theia, and the remaining debris eventually coagulated into Earth’s moon. The mass dona ...
... Earth was originally born as a twin to the planet Theia, which was about half of Earth, about the size of Mars. The two planets shared an orbit for several million years until they collided (crash). Earth absorbed Theia, and the remaining debris eventually coagulated into Earth’s moon. The mass dona ...
Ch9CTa
... Here r changes from r=RE to r = 4RE as the rock ascends. So the PE decreases by a factor of 4 and so does the KE. A factor of 4 change in KE means a factor of 2 change in v (since KE is proportional to v2). ...
... Here r changes from r=RE to r = 4RE as the rock ascends. So the PE decreases by a factor of 4 and so does the KE. A factor of 4 change in KE means a factor of 2 change in v (since KE is proportional to v2). ...
Theories of Cosmic Evolution - DigitalCommons@University of
... engineers on neighbouring planets run their lines and dig their Culebra cuts; and long before this age of engineering they have explained how the starry sky was peopled with divinities and heroes. Of all these many hypotheses which have been proposed to account for the universe of suns and planets a ...
... engineers on neighbouring planets run their lines and dig their Culebra cuts; and long before this age of engineering they have explained how the starry sky was peopled with divinities and heroes. Of all these many hypotheses which have been proposed to account for the universe of suns and planets a ...
PRESS RELEASE Source: Tokyo Institute of Technology, Center for
... huge satellite with about 1000 times larger mass than Phobos is quickly formed in the inner disk region. This huge satellite moves outwards due to the gravitational interaction with the disk, and starts to enhance the accretion of small satellites forming in the outer region. After the formation of ...
... huge satellite with about 1000 times larger mass than Phobos is quickly formed in the inner disk region. This huge satellite moves outwards due to the gravitational interaction with the disk, and starts to enhance the accretion of small satellites forming in the outer region. After the formation of ...
4th Grade Solar System Project
... phases in order. Model included a sun but did not represent accurate position in relation to the planets/moon. Model included Model did not include one out of three. asteroid belt, comets or meteors. Model included Model did not include few facts about facts about the the concept’s concept’s focus. ...
... phases in order. Model included a sun but did not represent accurate position in relation to the planets/moon. Model included Model did not include one out of three. asteroid belt, comets or meteors. Model included Model did not include few facts about facts about the the concept’s concept’s focus. ...
Late Heavy Bombardment
The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.