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... • The strong wind from the young Sun cleared excess gas from the solar nebula, but many planetesimals remained scattered between the newly formed planets. • These leftovers became the comets and asteroids. ...
... • The strong wind from the young Sun cleared excess gas from the solar nebula, but many planetesimals remained scattered between the newly formed planets. • These leftovers became the comets and asteroids. ...
What is the solar system?
... Classify List the inner planets in order from smallest to largest. ______________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ Critic ...
... Classify List the inner planets in order from smallest to largest. ______________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ Critic ...
the inner planets - Horace Mann Webmail
... • They are all small and rocky. • They are sometimes called the terrestrial planets. ...
... • They are all small and rocky. • They are sometimes called the terrestrial planets. ...
The Nebular Theory - Teacher Site Home
... the solar system • astronomers think that other clumps that did not form into planets (or moons or ...
... the solar system • astronomers think that other clumps that did not form into planets (or moons or ...
28.2 – The Inner Planets
... Mercury, Venus, Earth, and marks have high densities and rocky surfaces • Just as in a family in which brothers and sisters share a strong resemblance, the ...
... Mercury, Venus, Earth, and marks have high densities and rocky surfaces • Just as in a family in which brothers and sisters share a strong resemblance, the ...
Introduction to Astronomy, Lecture 7
... It orbits outside Pluto and was the largest Solar System object discovered since Pluto in 1930. Its diameter is about 1300km (half the size of Pluto), and it is on a very circular orbit currently one billion miles outside Pluto. Sedna is a similar object that is even further away, and takes over 10, ...
... It orbits outside Pluto and was the largest Solar System object discovered since Pluto in 1930. Its diameter is about 1300km (half the size of Pluto), and it is on a very circular orbit currently one billion miles outside Pluto. Sedna is a similar object that is even further away, and takes over 10, ...
Life in the Universe
... • Planets seem to be common around other stars • Hot, massive stars probably don’t live long enough for life (as we know it) to develop • Cool, low-mass stars are unlikely to have earth-like planets with liquid water • Best bet: sun-like stars, which are still fairly common (perhaps 1010 in our gala ...
... • Planets seem to be common around other stars • Hot, massive stars probably don’t live long enough for life (as we know it) to develop • Cool, low-mass stars are unlikely to have earth-like planets with liquid water • Best bet: sun-like stars, which are still fairly common (perhaps 1010 in our gala ...
space-rocks - WLWV Staff Blogs
... • Comets are relatively small, fragile, irregularly shaped rocks, and often resemble asteroids in the sense that they are made from left over break offs from the solar system formation. Comets however are icy dirtballs that form in the outer solar system. The icy surface is embedded with dust, grit, ...
... • Comets are relatively small, fragile, irregularly shaped rocks, and often resemble asteroids in the sense that they are made from left over break offs from the solar system formation. Comets however are icy dirtballs that form in the outer solar system. The icy surface is embedded with dust, grit, ...
Asteroids and Meteorites
... • Most probably are fragments of larger asteroids • A 100 km radius asteroid can produce 106 1 km fragments ...
... • Most probably are fragments of larger asteroids • A 100 km radius asteroid can produce 106 1 km fragments ...
Lecture 27 (pdf from the powerpoint)
... •Estimated by Drake as 0.5. It is now known from modern planet searches that at least 10% of sunlike stars have planets, and the true proportion may be much higher, since only planets gas-giant size and larger can be detected with current technology.[3] •ne = Estimated by Drake as 2. The same paper ...
... •Estimated by Drake as 0.5. It is now known from modern planet searches that at least 10% of sunlike stars have planets, and the true proportion may be much higher, since only planets gas-giant size and larger can be detected with current technology.[3] •ne = Estimated by Drake as 2. The same paper ...
the solar system - Title: Brains at school
... are chunks of rock and iron, which can fall on The Earth and form craters. ...
... are chunks of rock and iron, which can fall on The Earth and form craters. ...
Comets & Meteors (10)
... What is it about the outer planets that their atmospheres appear blue or blue-green? ...
... What is it about the outer planets that their atmospheres appear blue or blue-green? ...
Celestial Body Shape Diameter Composition
... Which of the following statements correctly describes the Planets of our solar system? A. The outer planets have rocky surfaces with cores of gas. B. The rocky surface of Venus is covered with ice. C. The inner 4 planets have rocky surfaces while the outer planets are gaseous. D. Jupiter is the sma ...
... Which of the following statements correctly describes the Planets of our solar system? A. The outer planets have rocky surfaces with cores of gas. B. The rocky surface of Venus is covered with ice. C. The inner 4 planets have rocky surfaces while the outer planets are gaseous. D. Jupiter is the sma ...
Space Study Guide
... Venus- The surface is hard to see because of the thick clouds surrounding the planet. The clouds trap energy and heat the surface to 470°C or more. Earth - surface temperature allows water to exist as a solid, liquid, and gas atmosphere protects from UV rays 1 AU from the sun. magnetic field s ...
... Venus- The surface is hard to see because of the thick clouds surrounding the planet. The clouds trap energy and heat the surface to 470°C or more. Earth - surface temperature allows water to exist as a solid, liquid, and gas atmosphere protects from UV rays 1 AU from the sun. magnetic field s ...
Heliocentric Model –The sun is the center of the solar system
... is the center of the solar system. Copernicus proposed that the Moon revolves around Earth, and that the apparent motion of the planets, stars, and Sun is due to Earth’s rotation. ...
... is the center of the solar system. Copernicus proposed that the Moon revolves around Earth, and that the apparent motion of the planets, stars, and Sun is due to Earth’s rotation. ...
Section 26.1 - CPO Science
... noticed that five bright objects seemed to wander among the stars at night. They called these objects planets, from the Greek word meaning “wandering star,” and named them Mercury, Venus, Mars, Jupiter, and Saturn. ...
... noticed that five bright objects seemed to wander among the stars at night. They called these objects planets, from the Greek word meaning “wandering star,” and named them Mercury, Venus, Mars, Jupiter, and Saturn. ...
Our Solar System
... Mars excites scientists because its mild temperament is more like Earth’s than any other planet. Evidence suggests that Mars once had rivers, streams, lakes and even an ocean. Mars has 2 moons named Deimos and Phobos. ...
... Mars excites scientists because its mild temperament is more like Earth’s than any other planet. Evidence suggests that Mars once had rivers, streams, lakes and even an ocean. Mars has 2 moons named Deimos and Phobos. ...
File
... However, the stars are a. much farther from the Earth than the planets b. much closer to Earth than the planets c. just outside our solar system, whereas planets are inside d. moving in and out of the solar system ...
... However, the stars are a. much farther from the Earth than the planets b. much closer to Earth than the planets c. just outside our solar system, whereas planets are inside d. moving in and out of the solar system ...
Our Solar System Exhibit Guide
... solar panels, antennae. How do you think the rover is powered? It gets energy from ...
... solar panels, antennae. How do you think the rover is powered? It gets energy from ...
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.