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arlo arrowsmith

on 6 May 2015

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Transcript of Mercury

This planet is named after the Roman deity Mercury.Mercury is the closest planet to the sun.Because Mercury orbits the Sun within Earth's orbit as does Venus, it can appear in Earth's sky in the morning or the evening. Also, like Venus and the Moon it displays a range of phases as it moves around its orbit relative to Earth. Although Mercury can appear to be vary bright when viewed from Earth, its proximity to the Sun makes it more difficult to see than Venus

Mercury is one of four terrestria planets and has a rocky body like Earth. It is the smallest planet in the solar system, with an radius of 2,439.7 kilometres. Although Earth's high density results from gravitational compression, particularly at the core, Mercury is much smaller and its inner regions so they are not as compressed. Therefore, for it to have such a high density, its core must be large and rich in iron.
in comparison with Venus, earth and mars.
Size and Geology
Mercury's surface is similar in appearance to that of the Moon, showing plains and extensive and heavy cratering, indicating that it has been geologically inactive for billions of years.Because knowledge of Mercury's geology has been based only on the 1975 Mariner flyby, it is the least understood terrestrial planets.
Mercury was heavily bombarded by comets
and asteroids during and shortly following its
formation 4.6 billion years ago, as well
as during a possibly separate episode
called the late heavy bombardment that
came to an end 3.8 billion years ago.
During this period of intense crater formation the planet received impacts over its entire surface, facilitated by the lack of any atmosphere to slow the projectiles down.It is the smallest planet in the solar system.
Because mercury has almost no atmosphere mercury experiences the greatest temperature variation of the planets in the Solar System, ranging from −173 C at night to +427 C during the day. The poles are constantly below −93 C.
With a day consisting of 88 of our days,and a year is 116 days, 2 days is longer than mercury's year.
because mercury has a higher density due to its large iron core gravity on the surface of Mercury is 0.377 g more than twice that of the Moon 0.1654 g and almost exactly identical with the surface gravity of Mars. human health problems associated with extended exposure to low gravity, from this point of view, Mercury might be more attractive for long-term human habitation than the Moon
Advantages & Disadvantage
Being the closest planet to the Sun, Mercury has vast amounts of solar power available. Its solar constant on average 6.5 times that of Earth or the Moon.
There are predictions that Mercury's soil may contain large amounts of helium-3 which could become an important source of clean nuclear fusion energy on Earth,Mercury is also theorized to have a crust rich in iron

The lack of any substantial atmosphere, close proximity to the Sun and long solar days (88 Earth days) would all lead to significant challenges for any settlement.
Entering orbit around Mercury and landing on the surface would take 6 years with current propulsion methods. their are no possible options for colonizing at present.

The ISS is a habitable artificial satellite in low Earth orbit. It was first launched in 1998. Now the largest artificial body in orbit, it can often be seen with the naked eye from Earth.The ISS serves as a space environment research laboratory in which crew members conduct experiments in biology, human biology, physics, astronomy, meteorology and other fields.The station is suited for the testing of spacecraft systems and equipment required for missions to the Moon and Mars. The ISS maintains an orbit with an altitude of between 330 and 435 km.The station has been continuously occupied for 14 years since the arrival this is the longest continuous human presence in space, having surpassed the previous record of 9 years.
Over all the colonizition of
mercury is a sutiable long term goal if not simply for exploration but for the vast amount of solar energy harvest able.As of now placeing humans on the planet is not possible before some artificial atmosphere can be created
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