Solar System – FutureForwardSKA: A Blog looking at the Future of Technology and its potential impact on Society.

Moons

Moons are natural satellites, celestial bodies that orbit other bodies such as large asteroid that charge large enough to have their own gravitational pull. Planets in a number of ways. Satellites that orbit close by near a planet’s equatorial plane and in the direction such as jupiter’s moons were likely created at the same time as the planet.

Moons in retrograde planet appear to have formed separately and been captured by the planets gravity. Neptune’s Tritone is one such moon. Moons can also come into being when large objects collide with planets, chipping of matter that becomes orbiting body: earth’s moon, for example, may have formed this way.

All the planets and dwarf planets except Mercury, Venus, Mars, Ceres, and Makemake have moons. All together, our solar system contains at least 146 moons. Until the invention of the telescope, only Earth’s moon was visible.

Moons seeems the most promising places to look for evidence of extraterrestrial life forms. A few moons, such as Neptune’s Triton and Jupiter’s Io, have atmospheres and other notable features. Triton has polar ice caps and geysers; Io has huge volcanic eruptions. Jupiter’s moon Europe and saturn’s moon Titan mein the only bodies in the solar system apart from Earth to have liquid water.

Earth’s Moon

Earth’s moon took form in a cosmic illusion about 4.5 billion years ago shortly after our planet formed. An object about the size of Mars struck Earth blasting large fragments of the planet into orbit. This orbiting matter eventually coalesced into the moon, which has a composition very similar to that of Earth’s crust.

The moon’s original molten surface cooled over time and then was intensely bombarded by space debris coma which created the money craters visible on its surface today. Next molten Rock welled up from the moon’s interior and flooded the impact basins, creating the moon’s seas, called Maria. Eventually the tumult died down and the moon turned into the quiet, dusty, Rocky world that greeted the Apollo astronauts in 1969, when Earth’s moon became the first extraterrestrial body visited by humans.

Our planet’s sole natural satellite of the moon is one fourth the size of the Earth and the fifth largest satellite in the solar system. Some astronomical have suggested that Earth and its moon are close enough in size that they should be considered a double planet system. The lunar reconnaissance orbiter, dubbed “NASA’s first step back to the moon,” will add to our lunar knowledge.

Terrestrial

The first for planets nearest the sun are known as terrestrial planets because of their Earth like characteristics especially their Rocky composition. But each of the four terrestrial planets Mercury, Venus, Earth and Mars has distinctive features that set it apart from its neighbours in the solar system.

Mercury, closest planet to the sun, orbits the sun in only 88 Earth days but it revolves on its Axis so slowly that one mercurian day lasts 59 Earth days. It has a large iron suggesting that it lost most of its surface in an ancient collision full stop Mercury appears to be shrinking still has its iron ore grows cold.

Earth has a unique blue and white appearance because more than 70% of its surface is covered with water and its atmosphere is filled with cloud rich in oxygen fullstop both its optimum distance from the sun and the presence of water in three states liquid solid and vapour make Earth conductive to life. Earths Terrain vary from that of any planet and its life forms thrive on land and in water.

Mars’s iron rich soil gives it a reddish glow. Half the size of Earth Mars is known for the oversized feature of its Terrain. Its Valles Marineris canyon stretches from 2500 miles, equivalent to the distance from los Angeles to New York city. Its Olympus mons volcano stands at least 15 miles high more than twice the height of the the Mount Everest. Despite Mars’s inhospitable atmosphere, the United States still hopes to send a manned spacecraft to test Earth closest neighbour

Ceres, a dwarf planet resides in the Atal asteroid belt that orbits the sun between Mars and Jupiter fullstop about one-fourth the size of the earth’s moon, Ceres is the largest object in that belt of solar system leftovers.

What is the asteroid belt?

The asteroid belt located between the orbits of Mars and Jupiter is a wide belt of material orbiting the sun that contains perhaps millions of asteroid. There is an asteroid recently upgraded to a job planet is also found here a full stop these asteroids are spread over such a large Swath of space that a spacecraft travelling through the twelfth would really encounter 1. They tend to collect in orbiting expectorated from one another by significant gaps called Kirkwood gaps, which are caused by the gravitational pull of Jupiter. Jupiter’s gravity occasionally poles an asteroid out of orbit and sends it hurtling to the sun. A real asteroid veers out of the belt and rockets to earth.

What does an asteroid look like?

The image to the right was created from a composite of four photographs of asteroid 433 also known as Eros coma in our solar system’s asteroid belt. The photographs were taken by The Near Earth Asteroid Renders (NEAR) was mission in February 2000. The NEAR spacecraft entered Eros’s orbit about 200 miles from the asteroid and about 160,000,000 miles from Earth. A year later the NEAR spacecraft landed on Eros and confirm that it is without atmosphere or water.

This asteroid is heavily created suggesting that it is relative Li old. The large creta visible hair measures about 4 miles across. A its depression can be seen in a Boulder, equivalent in size to a single family house.

The New Solar System

Ancient observer’s watch the celestial bodies more regularly against the starry sky. Those movements inspired the word “planet”, from the Greek wonder. The ancients named and honoured the Sun, moon, and five planets that they believe revolve around Earth: mercury, Venus, Mars, Jupiter and Saturn.

In the 16th century, Nicolas Copernicus disputed the notion that most heavenly body’s orbited earth with his proposal of a heliocentric universe. Uranus was discovered– rather, it was identified as a planet and not a star bi British number William Herschel in 1718. In 1846 German astronomer Johann Gottfried Galle identified Neptune. Tiny Pluto turned up to a photographic plate at Arizona’s Lowell observatory in 1930.

The list of our solar systems 9 planets was challenge in 2005 when the discovery of a large body in the kuiper belt reopened rigorous discussion among astronomical and planetary classification.

The international astronomical union met in Paraguay in August 2006 and, do only a fraction of its member were present for the vote arrived at a new definition of planet. The effect of this decision change the line of for our solar system, leaving the number of planets an “elite eight”. The i u a classified Pluto with two other smallest bodies as dwarf planets ongoing discoveries no doubt will continue to change our view of the solar system.

Fact– our address in the universe looks something like this: Earth from the sun, solar system, Local in interstellar cloud, local bubble, Orion arm, Milky way, Local group supercluster visible universe universe.

More new planets??

The definition of a planet and the list of the planets in our solar system may keep changing at one point during the great 23 shakeup of 2016 I briefly proposed definition that would have included more than a hundred objects belonging to the cat- egory of “planets”.

Ceres, Pluto, Huamea and Eris are dwarf planets; the latter three and their moon are further designated as blue toys coma 12 planets found beyond Neptune and Kuiper belt. Huamea, officially recognised in 2008 is the new nearest plutoid. This egg shaped dwarf planet spins rapidly completing one rotation every 4 hour.

Fact– newly discovered dwarf planet suggest that our planet up to 10 times the size of earth may be awaiting far beyond Pluto.

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