13_Testbank - Lick Observatory
... 6) The star Rho Cancri B has about the same mass as our Sun, and the planet discovered around it orbits somewhat closer than Mercury orbits our Sun. The mass of the planet is estimated to be 1.1 times the mass of Jupiter. Why, according to our theory of solar system formation, is it surprising to fi ...
... 6) The star Rho Cancri B has about the same mass as our Sun, and the planet discovered around it orbits somewhat closer than Mercury orbits our Sun. The mass of the planet is estimated to be 1.1 times the mass of Jupiter. Why, according to our theory of solar system formation, is it surprising to fi ...
Astrobiological Stoichiometry
... show that elemental abundance ratios do vary significantly from star to star. A link between stellar abundances and planet formation is suggested. We have tantalizing direct measurements of abundances in exoplanets, but the interpretation of those preliminary measurements is far from clear. We also ...
... show that elemental abundance ratios do vary significantly from star to star. A link between stellar abundances and planet formation is suggested. We have tantalizing direct measurements of abundances in exoplanets, but the interpretation of those preliminary measurements is far from clear. We also ...
Other Planetary Systems The New Science of Distant Worlds 13.1
... 6) The star Rho Cancri B has about the same mass as our Sun, and the planet discovered around it orbits somewhat closer than Mercury orbits our Sun. The mass of the planet is estimated to be 1.1 times the mass of Jupiter. Why, according to our theory of solar system formation, is it surprising to fi ...
... 6) The star Rho Cancri B has about the same mass as our Sun, and the planet discovered around it orbits somewhat closer than Mercury orbits our Sun. The mass of the planet is estimated to be 1.1 times the mass of Jupiter. Why, according to our theory of solar system formation, is it surprising to fi ...
`Magnificent Desolation` transcript
... understand how the moon was formed. You can see moon samples brought back by the Apollo astronauts on the space galley, outside the planetarium. The moon and the earth are made from very similar stuff, but the earth has a much larger iron core than the moon, we also know from studying the samples ...
... understand how the moon was formed. You can see moon samples brought back by the Apollo astronauts on the space galley, outside the planetarium. The moon and the earth are made from very similar stuff, but the earth has a much larger iron core than the moon, we also know from studying the samples ...
Primordial Planet Formation - University of California San Diego
... from the plasma epoch transition to gas would fragment under viscous‐gravitational control to form planetary‐mass gas clouds in dense clumps of a trillion. Rather than planets forming from stars, all stars should form from these primordial gas planets within their protostarcluster clumps. ...
... from the plasma epoch transition to gas would fragment under viscous‐gravitational control to form planetary‐mass gas clouds in dense clumps of a trillion. Rather than planets forming from stars, all stars should form from these primordial gas planets within their protostarcluster clumps. ...
an Educator`s GuidE - Museum of Science, Boston
... Moons can be formed by several very different processes: • Co-formation: These moons formed out of the early solar nebula, at the same time as their corresponding planetary body. Their orbits tend to be in the same direction as the spin of the primary. Examples include Jupiter’s Io, Europa, Callist ...
... Moons can be formed by several very different processes: • Co-formation: These moons formed out of the early solar nebula, at the same time as their corresponding planetary body. Their orbits tend to be in the same direction as the spin of the primary. Examples include Jupiter’s Io, Europa, Callist ...
The Earth`s Crust
... magma atop the iron core. As it solidified, elements that didn't fit into the major minerals collected as a scum on top—the crust. After that the mantle began the slow circulation it has had for the last 4 billion years, with at least the upper part being cooled, stirred and hydrated by the tectonic ...
... magma atop the iron core. As it solidified, elements that didn't fit into the major minerals collected as a scum on top—the crust. After that the mantle began the slow circulation it has had for the last 4 billion years, with at least the upper part being cooled, stirred and hydrated by the tectonic ...
lecture 3
... • formation efficiency is rather low – only about 3% for classical Oort cloud and another 3% in the inner cloud. Given current mass of about 5 M⊕ in the classical cloud, this requires 200M⊕ or more in residual planetesimals, far larger than the amount in the giant planets • formation models predic ...
... • formation efficiency is rather low – only about 3% for classical Oort cloud and another 3% in the inner cloud. Given current mass of about 5 M⊕ in the classical cloud, this requires 200M⊕ or more in residual planetesimals, far larger than the amount in the giant planets • formation models predic ...
October 2007 - Computer Graphics Home
... resulting from this cosmic explosion. The Veil Nebula is one of the most spectacular supernova remnants in the sky. The entire shell spans about 3 degrees on the sky, corresponding to about 6 full moons. The Veil Nebula is a prototypical middle-aged supernova remnant, and is an ideal laboratory for ...
... resulting from this cosmic explosion. The Veil Nebula is one of the most spectacular supernova remnants in the sky. The entire shell spans about 3 degrees on the sky, corresponding to about 6 full moons. The Veil Nebula is a prototypical middle-aged supernova remnant, and is an ideal laboratory for ...
When hawk-sized dragonflies ruled the air
... resistance to pesticides are examples of rapid, short-term evolution. Other changes, such as the appearance of new species and evolutionary lineages, usually take place over much longer time frames. To understand the long-term patterns of evolutionary change, we must think in time frames spanning ma ...
... resistance to pesticides are examples of rapid, short-term evolution. Other changes, such as the appearance of new species and evolutionary lineages, usually take place over much longer time frames. To understand the long-term patterns of evolutionary change, we must think in time frames spanning ma ...
earth science - charlesburrows.com
... You are to answer all questions in all parts of this examination according to the directions provided in the examination booklet. Record your answers to the Part A and Part B–1 multiple-choice questions on your separate answer sheet. Write your answers to the Part B–2 and Part C questions in your an ...
... You are to answer all questions in all parts of this examination according to the directions provided in the examination booklet. Record your answers to the Part A and Part B–1 multiple-choice questions on your separate answer sheet. Write your answers to the Part B–2 and Part C questions in your an ...
Earth impact probability of the Asteroid (25143)
... within timescales from a few 104 yr to several Myr. Half of the clones reach their sink within 8.3 Myr. Interestingly, this timescale is similar to the median lifetime of the observed NEO population (Gladman et al., 2000). However, our sample is too limited to interpret it as the most likely lifetim ...
... within timescales from a few 104 yr to several Myr. Half of the clones reach their sink within 8.3 Myr. Interestingly, this timescale is similar to the median lifetime of the observed NEO population (Gladman et al., 2000). However, our sample is too limited to interpret it as the most likely lifetim ...
lesson13_students - Challenger Learning Center
... not wait to share with you. Before we begin telling you about our new home, you should know our flight went very well, although the trip was quite long. This planet is about 19.2 AU from the sun which is over 19 times further from the sun than Earth. The planet is made mostly of frozen gas. The most ...
... not wait to share with you. Before we begin telling you about our new home, you should know our flight went very well, although the trip was quite long. This planet is about 19.2 AU from the sun which is over 19 times further from the sun than Earth. The planet is made mostly of frozen gas. The most ...
Science Through Postcard
... It is not uncommon that at the end of a public lecture, I am surrounded by autograph-hunters, mostly students. Rather than oblige them with my signature, I decided to try out an experiment, on such occasions. I asked the typical autograph-aspirant to send me a question on a postcard. The question sh ...
... It is not uncommon that at the end of a public lecture, I am surrounded by autograph-hunters, mostly students. Rather than oblige them with my signature, I decided to try out an experiment, on such occasions. I asked the typical autograph-aspirant to send me a question on a postcard. The question sh ...
Unit 3 : the solar system
... to learn about other planets and moons in our solar system. Understand the conditions needed for a habitable world and determine if there are habitable worlds in our solar system or outside the solar system. Understand how we look for and study solar systems other than our own. ...
... to learn about other planets and moons in our solar system. Understand the conditions needed for a habitable world and determine if there are habitable worlds in our solar system or outside the solar system. Understand how we look for and study solar systems other than our own. ...
Comets
... But how did the comets and asteroids get to the specific places we find them today? Once again, the planets are responsible. As the planets became larger, they began to perturb the orbits of the remaining planetesimals. Some were in orbits that the planets did not affect, but others met one of four ...
... But how did the comets and asteroids get to the specific places we find them today? Once again, the planets are responsible. As the planets became larger, they began to perturb the orbits of the remaining planetesimals. Some were in orbits that the planets did not affect, but others met one of four ...
Students - Challenger Learning Center
... to see other planets as we made our way to camp. The most exciting part was getting the chance to fly past the largest planet in our solar system! You cannot imagine its size until you have the chance to fly past it. After traveling 9.5 AU, we got to our home planet ready to set up base camp. The fi ...
... to see other planets as we made our way to camp. The most exciting part was getting the chance to fly past the largest planet in our solar system! You cannot imagine its size until you have the chance to fly past it. After traveling 9.5 AU, we got to our home planet ready to set up base camp. The fi ...
Identifying the rotation rate and the presence of dynamic
... an exoplanet with relatively high accuracy will be important for several reasons (Laskar and Correia, 2004). First, measuring the rotation rate can help to understand the formation mechanisms and dynamical evolution of extrasolar planetary systems (Agnor et al., 1999; Chambers, 2001; Goldreich et al ...
... an exoplanet with relatively high accuracy will be important for several reasons (Laskar and Correia, 2004). First, measuring the rotation rate can help to understand the formation mechanisms and dynamical evolution of extrasolar planetary systems (Agnor et al., 1999; Chambers, 2001; Goldreich et al ...
QUANTUM GRAVITY IN THE SOLAR SYSTEM
... We present a study of the solar system based on quantum gravity. Quantum gravity QG is a not yet satisfactory defined theory whose object, in very crude terms, is to define a gravitational correspondent of quantum electrodynamics , so as to hopefully arrive at a unified formulation of the basic laws ...
... We present a study of the solar system based on quantum gravity. Quantum gravity QG is a not yet satisfactory defined theory whose object, in very crude terms, is to define a gravitational correspondent of quantum electrodynamics , so as to hopefully arrive at a unified formulation of the basic laws ...
Earth, Moon, and Sky - Wayne State University
... The Moon is the second brightest object in the Earth's sky after the Sun However, unlike the Sun, it does not shine under its own power, but merely glows with reflected sunlight Viewed from the Earth, the Moon appears to have a cycle of phases during the course of a month The cycle begins with the M ...
... The Moon is the second brightest object in the Earth's sky after the Sun However, unlike the Sun, it does not shine under its own power, but merely glows with reflected sunlight Viewed from the Earth, the Moon appears to have a cycle of phases during the course of a month The cycle begins with the M ...
Beyond Neptune: The Kuiper Belt
... • Simulations show that at the relative velocities KBO’s experience, that the pieces from collisions would result in many losing angular momentum and falling in on the highly elliptical orbits, like short-period comets have. • Short period comets – a few miles across, not hundred(s) of miles across ...
... • Simulations show that at the relative velocities KBO’s experience, that the pieces from collisions would result in many losing angular momentum and falling in on the highly elliptical orbits, like short-period comets have. • Short period comets – a few miles across, not hundred(s) of miles across ...
Jovian Planets
... Internal Heat of Other Planets • Saturn also radiates twice as much energy as it receives from the Sun. – Energy probably comes from differentiation (helium rain). • Neptune emits nearly twice as much energy as it receives – also driven by gravitational contraction, but precise mechanism unclear. • ...
... Internal Heat of Other Planets • Saturn also radiates twice as much energy as it receives from the Sun. – Energy probably comes from differentiation (helium rain). • Neptune emits nearly twice as much energy as it receives – also driven by gravitational contraction, but precise mechanism unclear. • ...
TRAPPIST: TRAnsiting Planets and PlanetesImals Small Telescope
... constrained: (i) the planet-to-star radius ratio; (ii) the orbital inclination; (iii) the stellar limb-darkening coefficients; and (iv) the stellar density (assuming the orbital period is known). This last quantity can be used with other measured stellar quantities to deduce, via stellar model lin ...
... constrained: (i) the planet-to-star radius ratio; (ii) the orbital inclination; (iii) the stellar limb-darkening coefficients; and (iv) the stellar density (assuming the orbital period is known). This last quantity can be used with other measured stellar quantities to deduce, via stellar model lin ...
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.