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How Does Space Travel Benefit The Scientific Domain? In
How Does Space Travel Benefit The Scientific Domain? In

... Earth’s gravitational field and orbits around the Solar System.[1][2] Just 10 years later in 1969, the Apollo 11 mission to the moon was successfully and 3 astronauts walked the moon.[3] This shows that the rapid growth of technology enables humans or man made objects to travel into space much more ...
Powerpoint - BU Imaging Science
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... So do lots of other Kuiper Belt objects Many Kuiper Belt Objects are in stable orbital resonances with Neptune, whereas unstable orbital resonances with Jupiter cause gaps in Asteroid Belt ...
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... 460°C. Like Mercury, Venus has no moons. ...
Remnants of Rock and Ice (Chapter 12)
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... So do lots of other Kuiper Belt objects Many Kuiper Belt Objects are in stable orbital resonances with Neptune, whereas unstable orbital resonances with Jupiter cause gaps in Asteroid Belt ...
The Search for Extraterrestrial Life
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... It is inspiring. Understand the history of the Earth, the Solar System and our Galaxy. • It is cool! ...
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... Pluto is a large example. Quaoar discovered in 2002 – half the size of Pluto. Other large objects found since (e.g. Sedna; 2003 UB313 (Eris)). ...
Astronomy 101 Lab: Finding Life Beyond Earth
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lagrange - The Institute of Mathematical Sciences
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... Its gravitational pull keeps the planets from shooting off into space. If the Sun disappeared the planets would move in a straight line. Planets are large bodies that orbit a star. Planets have two kinds of motion. One is rotation, where the planet spins on its axis (day). The other type of motion i ...
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... asteroids, and comets 2. The known planets in the solar system are: Mercury, Venus, Earth , Mars, Jupiter, Saturn , Uranus, Neptune and what was once known as Pluto is now a dwarf planet. 3. A full movement is called a revolution. 4. Gravity keeps the moon orbiting around Earth 5. The earth spins ar ...
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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.
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