A report on the planet mercury

The process crumpled the surface, creating lobe-shaped scarps or cliffs, some hundreds of miles long and soaring up to a mile high, as well as Mercury's " Great Valley ," which at about miles long, miles wide and 2 miles deep 1, by by 3.

These points, which are the ones on the equator where the apparent retrograde motion of the Sun happens when it is crossing the horizon as described in the preceding paragraph, receive much less solar heat than the first ones described above. One study suggested that Mercury's surface features can generally be divided into two groups — one consisting of older material that melted at higher pressures at the core-mantle boundary, and the other of newer material that formed closer to Mercury's surface.

mercury color

Due to Mercury's spin—orbit resonance, a solar day the length between two meridian transits of the Sun lasts about Earth days. The same thing happens during sunset. But a year on Mercury goes fast.

mercury planet temperature

At some longitudes the observer would see the Sun rise and then gradually increase in apparent size as it slowly moved toward the zenith. It is estimated that the surface area of Mercury shrank by about 0. Mass concentrations red suggest subsurface structure and evolution Mercury appears to have a solid silicate crust and mantle overlying a solid, iron sulfide outer core layer, a deeper liquid core layer, and a solid inner core.

This varying distance to the Sun leads to Mercury's surface being flexed by tidal bulges raised by the Sun that are about 17 times stronger than the Moon's on Earth.

Depressions or fossae are named for works of architecture.

A report on the planet mercury

It was thought that another planet sometimes called Vulcan slightly closer to the Sun than Mercury might account for the discrepancy. Mercury travels around the sun more quickly than any of the other planets in the solar system. Due to Mercury's spin—orbit resonance, a solar day the length between two meridian transits of the Sun lasts about Earth days. There it could be cold enough to preserve water ice despite the high temperatures on sunlit parts of the planet. Although Earth's high density results appreciably from gravitational compression, particularly at the core , Mercury is much smaller and its inner regions are not as compressed. The planet has too many extremes for organisms to be able to adapt to. The tiny differences between the observed and predicted values were a minor but nagging problem for many decades. Temperatures on the surface of Mercury are extreme, both hot and cold. The mission has provided support for the hypothesis that water ice and other volatiles do exist in the polar regions in permanent shadow. Mercurial origins Like the other planets in the solar system, Mercury was born about 4. It is thus a " compound volcano ". Water vapor is present, released by a combination of processes such as: comets striking its surface, sputtering creating water out of hydrogen from the solar wind and oxygen from rock, and sublimation from reservoirs of water ice in the permanently shadowed polar craters.

If so, it would make the rocky planet a member of a very select club with samples available on Earth; only the moon, Mars and the asteroid belt have verified rocks.

Scientists believe that they have found evidence that shows that part of the metallic core is molten or liquid. The tiny differences between the observed and predicted values were a minor but nagging problem for many decades.

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Planet Mercury: Facts About the Planet Closest to the Sun