The term meteor is actually used to describe the streak of visible light after it ‘s trip through the Earth ‘s orbit . One of the most famous craters , which is like a giant scar caused by a NEO hitting the Earth , is in Arizona .Meteor Crater , or Barringer Meteorite Crater as it is also known as , is a jarring reminder of what kind of damage a NEO can do upon impact . Most meteors are small enough that once they are pulled in by the Earth ‘s orbit and hit the atmosphere , they burn up and disintegrate before they ever get the chance to actually hit the Earth ‘s surface . Another group of NEO ‘s are asteroids . One of the largest asteroids that astronomers keep their eyes on is Apophis .
8. Why was the formation of planets such as Jupiter and Saturn more like the development of the Sun then like the development of the terrestrial planets? Saturn and Jupiter are mainly made of gases like the Sun instead of solids like the other planets. Resources http://www.livescience.com/31788-why-earth-perfect-for-life.html http://www.globalchange.umich.edu/globalchange1/current/lectures/Perry_Samson_lectures/evolution_atm/ http://www.universetoday.com/36687/rotation-of-venus/ https://answers.yahoo.com/question/index?qid=20100228201245AATxtaB
It shows the damage caused by large pieces of rock hitting it billions of years ago. From the Earth we can only see one side of the Moon; the other side is always turned away from us. If you look at the Moon when it is nearly full you can see the dark areas which are known as the seas. (They are all given names, such as Mare Serenitatis – the Sea of Serenity, or Mare Frigoris – the Sea of Cold).These are not really seas but are huge expanses of smooth dark lava. All parts of the Moon are lit in turn by the Sun.
All of these objects are all said to have been formed from the collapse of a giant molecular cloud about 4.5 billion years ago. The solar system consists of eight large celestial bodies that revolve around the sun and shine by reflected light. Out of these eight planets in the solar system the four innermost are; Mercury, Venus, Earth, and Mars, which are considered the terrestrial planets. They are made up of mostly rock and metals, are compact and all have a surface resembling the Earth’s. The outermost planets are; Jupiter, Saturn, Uranus, and Neptune, and are known as the Jovian Planets.
Red shift occurs when light radiation moves away from an observer. The red shift is seen due to the expansion of the universe and distant light sources (millions of light years away) show red shift corresponding to the rate of increase in their distance from earth. If the universe was very, very hot, as scientists seem to think it was, there must be some remnants of heat left over from the beginning of the universe. In 1965, radio astronomers Arno Panzias and Robert Wilson discovered a 2.725 degree Kelvin Cosmic
His name is one of only 72 names inscribed on the Eiffel Tower. Shortly after the discovery of Neptune, Le Verrier was convinced that there still might be another planet further out in our Solar System. It turned out to be a large moon of Neptune, named Triton. With this discovery, more accurate and detailed data could be obtained about Neptune, such as Neptune’s mass and orbital path. A British astronomer, William Lassell, is actually credited with the discovery of Triton.
Saturn’s Moons The planet of Saturn is an amazing planet as far as moons go. This planet is currently known to have fifty-two moons. Some of these moons are spherical in shape much like Earth’s moon and some look to be no more than a meteor that was captured by the huge planet. Now I’m not going to be able to discuss every moon that belongs to Saturn but I will talk about the six biggest which are: Titan, Rhea, Iapetus, Dione, Tethys, and Enceladus. All of Saturn’s moons were named after Greek Mythological figures.
When they are far from the sun, comets are extremely dark, cold, icy objects. The icy body is called the nucleus. Nuclei are made of various types of ices, dirt and dust. As comets get closer to the sun in their journeys through the solar system, they start to warm up. As they reach an area roughly the same distance from the sun as Jupiter, the ices start to heat up and vaporize, releasing the gases and embedded dust particles that form a cloud or atmosphere -- called a coma -- around the comet.
In 1965, NASA (National Aeronautics and Space Administration) took our first close up picture of Mars. Since then, spacecraft voyages to Mars have revealed a world a lot like ours. (Mars Exploration Program, 1) “The planet Mars- crimson and bright, filling our telescopes with vague intimations of an almost familiar landform,” says David Grinspoon, an American space scientist. (Quotes on Mars, 1) Due to new research and technology NASA has found water on Mars and is conducting new missions to get airplanes or someday maybe even humans to Mars. Could there be life on Mars?