It is speculated.
that it was the solidification of Mercury's metallic core that.
caused this global shrinkage. Mercury is also " . . . enriched.
in metal or depleted of rock " (Morrison, 74, 1993). It is also.
believed that some of the inner core of Mercury is still in a.
fluid state.
Scientists also believe that Mercury's surface is made partially.
of silicate rock. The best way to describe Mercury is, " . . .
small, heavily cratered and airless " (Morrison, 71, 1993).
Venus is the second closest planet to the sun and is said to .
" . . . most closely resemble Earth in size, density, and.
distance from the sun " (Thompson/Turk, 542, 1993). Venus is.
known to most scientists as the sister planet to the Earth. It.
is called this because it closely resembles the Earth's mass,.
density and diameter. The only thing different is that Venus ".
is shrouded in thick clouds that completely hide the surface of.
the planet " (Grolier, 1992). The surface temperature is also.
much warmer than that of Earth.
Venus completes one revolution around the sun in 224.7 days. .
This makes the Venusian day equal to 117 earth days. It is.
thought that this slow rotation may be the reason why Venus has.
no magnetic field.
Planets 4.
The atmosphere of Venus made up of 98% carbon dioxide and .
2% Nitrogen. This atmosphere also has the presence of helium,.
neon and argon. This is yet another thing which makes Venus.
different from Earth. .
The surface of Venus is quite a bit like that of the Earth. .
The surface has volcanoes and smooth plains. " Much of the.
volcanic activity on Venus takes the form of Basaltic eruptions.
that inundate large ares, much as the mare volcanism flooded the.
impacted basins on the near side of the moon " (Morrison, 93,.
1993). One thing that differs from Earth is that there is no.
water liquid on the Venusian surface.
Some of the scientific data that follows was taken out of.
Planet Earth by P. ... It has to be spread out, the skin of this planet. ... It has to be made bright, the skin of this planet till it shines in the sun like gold leaf. ... Page's poem "Planet Earth" for Dialogue Poetry. ... Page's poem 'Planet Earth' be read throughout the world as a message of peace. ...
The Planets A planet is a celestial body that revolves around a central star and does not shine by its own light. ... Mercury, which is the planet that is closest to the sun, is the first planet I will discuss. ... Since it is the closest planet to the sun it orbits faster than any other planet. ... Jupiter is the fifth planet and is the most massive of all the planets in this solar system. ... The next planet is Uranus. ...
Inner Planets Mercury It is the planet closest to the sun. ... It is the second smallest planet. ... This planet has no moon. ... Venus is Earth's sister planet. ... It is the only known planet to contain life, even though other planets have atmospheres and water. ...
Murray believes he has a good reason to believe that there is a tenth planet. ... One could be planet X. ... Planet X is too faint to find even with the UK Schmidt Telescope. ... He then thought he hadn't found the right planet. ... Whitmire and Matese have no plans for a targeted search for Planet X. ...
Extrasolar Planets The universe is composed of many galaxies, planets, an abundant amount of stars, and matter. ... An extrasolar planet is a planet around other stars, and these planets are Mercury, Venus, Earth and Mars. One can see these planets through powerful telescopes. ... An observed Doppler-shift could be produced either by a low mass planet or by a bigger planet. ... There are many elliptical orbits than circular orbits of planets in the solar system, and also most of these planets are bigger than Jupiter. ...
The study of space weather and weather on other planets provides scientists with information that provides a greater knowledge of how our planet works. ... These factors cause the planet's weather system to be erratic. ... Mars, also known as the "Red Planet", is very cold and dry. ... Seasons Seasons on any planet are created by the combination of 2 factors: axial tilt and the planet's distance from the Sun (Caplinger). ... This can cause the temperature to drop about 50*F and affect the planet's heat balance, seasons, and occurrence of water vapor clouds ("Exploring the Plane...
Planet Comparison Report Uranus: Uranus was discovered in 1781 by Sir William Herschel. ... Uranus is one of the Jovian planets and like the others it has a short rotation period. ... It is the seventh planet from the sun at a distance of 1.78 billion miles. ... The axial tilt of this planet is one of the most unusual things about it. ... Neptune is the 8th planet from the sun at a distance of about 2.8 billion miles. ...
