- Dwarf Planets
- How Many Planets Are There in the Solar System? - jozomibola.tk
- Mars In The Fourth Position
- Fourth Planet from the Sun: Mars Essay
- Facts about Mars
It has been known since prehistoric times as a bright "wandering star". But in when Galileo first pointed a telescope at the sky he discovered Jupiter's four large moons Io , Europa , Ganymede and Callisto now known as the Galilean moons and recorded their motions back and forth around Jupiter. In Roman mythology Mercury is the god of commerce, travel and thievery, the Roman counterpart of the Greek god Hermes, the messenger of the Gods.
The planet probably received this name because it moves so quickly across the sky.
Mercury has been known since at least the time of the Sumerians 3rd millennium BC. There are officially only eight planets in our solar system.
Of course this change in terminology does not affect what's actually out there. In the end, it's not very important how we classify the various objects in our solar system.
How Many Planets Are There in the Solar System? - jozomibola.tk
What is important is to learn about their physical nature and their histories. Our knowledge of our solar system is extensive but it is far from complete. Some of the worlds have never even been photographed up close. The Nine Planets is an overview of what we know today.
We are still exploring, much more is still to come:. Nine Planets - Solar System Tour This website is an overview of the history, mythology and current scientific knowledge of the planets, moons and other objects in our solar system. Jupiter Jupiter is the fourth brightest object in the sky after the Sun, the Moon and Venus. Where there is water, there could be life.
Mars In The Fourth Position
Mars also has weather and a heat source. The atmosphere circulates around the planet and there are volcanoes on the surface. Exploring Mars Many probes have visited Mars through the years because it is so close to Earth. Viking, Pathfinder, Sojourner, and Mariner are only a few. The Viking Lander checked out the surface of Mars in the 's. It sent back some great pictures of the red surface of the planet. The surface is a reddish color because the rocks and crust are chock full of iron compounds.
Fourth Planet from the Sun: Mars Essay
For several years, the two Mars Exploration Rovers have been studying the surface rocks in detail. They have been able to travel to many locations in a small area.
With patience, the rovers have made many new discoveries about the geologic history of Mars. All of these probes have also shown us a great deal of the Martian surface.
Facts about Mars
Mars has the largest volcano ever discovered. It has been named Olympus Mons and is one of the most amazing features of the planet. The Mars Reconnaissance Orbiter will soon photograph the location in higher resolution than before.