October 10, The picture was taken just 11 hours before Mars made its closest approach to us in 60, years. Befitting the red planet's bloody color, the Romans named it after their god of war. The Romans copied the ancient Greeks, who also named the planet after their god of war, Ares.
The picture was taken just 11 hours before Mars made its closest approach to us in 60, years. The Romans copied the ancient Greeks, who also named the planet after their god of war, Ares. Other civilizations also typically gave the planet names based on its color — for example, the Egyptians named it "Her Desher," meaning "the red one," while ancient Chinese astronomers dubbed it "the fire star.
The soil of Earth is a kind of regolith, albeit one loaded with organic content. According to NASA, the iron minerals oxidize, or rust, causing the soil to look red. The cold, thin atmosphere means liquid water likely cannot exist on the Martian surface for any length of time. Features called recurring slope lineae may have spurts of briny water flowing on the surface, but this evidence is disputed; some scientists argue the A research on mars the red planet spotted from orbit in this region may instead indicate briny salts.
This means that although this desert planet is just half the diameter of Earth, it has the same amount of dry land. The red planet is home to both the highest mountain and the deepest, longest valley in the solar system.
Olympus Mons is roughly 17 miles 27 kilometers high, about three times as tall as Mount Everest, while the Valles Marineris system of valleys — named after the Mariner 9 probe that discovered it in — can go as deep as 6 miles 10 km and runs east-west for roughly 2, miles 4, kmabout one-fifth of the distance around Mars and close to the width of Australia or the distance from Philadelphia to San Diego.
Available to Populate Mars. It is a shield volcano, with slopes that rise gradually like those of Hawaiian volcanoes, and was created by eruptions of lavas that flowed for long distances before solidifying.
Mars also has many other kinds of volcanic landforms, from small, steep-sided cones to enormous plains coated in hardened lava.
Some minor eruptions might still occur on the planet. Scientists think the Valles Marineris formed mostly by rifting of the crust as it got stretched.
Individual canyons within the system are as much as 60 miles km wide. They merge in the central part of the Valles Marineris in a region as much as miles km wide. Large channels emerging from the ends of some canyons and layered sediments within suggest the canyons might once have been filled with liquid water.
Some channels can be 60 miles km wide and 1, miles 2, km long. Water may still lie in cracks and pores in underground rock. Many regions of Mars are flat, low-lying plains. The lowest of the northern plains are among the flattest, smoothest places in the solar system, potentially created by water that once flowed across the Martian surface.
The northern hemisphere mostly lies at a lower elevation than the southern hemisphere, suggesting the crust may be thinner in the north than in the south. This difference between the north and south might be due to a very large impact shortly after the birth of Mars.
The number of craters on Mars varies dramatically from place to place, depending on how old the surface is.
|Besides silicon and oxygen, the most abundant elements in the Martian crust are iron, magnesiumaluminumcalciumand potassium.|
Some volcanoes have few craters, which suggests they erupted recently, with the resulting lava covering up any old craters. Some craters have unusual-looking deposits of debris around them resembling solidified mudflows, potentially indicating that impactor hit underground water or ice. Polar caps Vast deposits of what appear to be finely layered stacks of water ice and dust extend from the poles to latitudes of about 80 degrees in both hemispheres.
These were probably deposited by the atmosphere over long spans of time. On top of much of these layered deposits in both hemispheres are caps of water ice that remain frozen all year round. Additional seasonal caps of frost appear in the wintertime.
These are made of solid carbon dioxide, also known as "dry ice," which has condensed from carbon dioxide gas in the atmosphere, and in the deepest part of the winter, this frost can extend from the poles to latitudes as low as 45 degrees, or halfway to the equator.
The dry ice layer appears to have a fluffy texture, like freshly fallen snow, according to the report in the Journal of Geophysical Research-Planets. Mars 12 inch Globe Buy Here Credit: The average temperature is about minus 80 degrees Fahrenheit minus 60 degrees Celsiusalthough it can vary from minus F minus C near the poles during the winter to as much as 70 F 20 C at midday near the equator.
The density of the atmosphere varies seasonally, as winter forces carbon dioxide to freeze out of the Martian air. In the ancient past, the atmosphere was likely thicker and able to support water flowing on its surface. Over time, lighter molecules in the Martian atmosphere escaped under pressure from the solar wind, which affected the atmosphere because Mars does not have a global magnetic field.
The red planet also causes water-ice snow to fall from the clouds. The dust storms of the Mars are the largest in the solar system, capable of blanketing the entire red planet and lasting for months. One theory as to why dust storms can grow so big on Mars starts with airborne dust particles absorbing sunlight, warming the Martian atmosphere in their vicinity.
Warm pockets of air flow toward colder regions, generating winds.New research into Mars' history may revolutionize our image of the Red Planet, including the ongoing investigation into whether it ever supported life. . Earth's next-door neighbor is often called the Red Planet because of its red soil.
Earth's next-door neighbor is often called the Red Planet because of its red soil. Earth's next-door neighbor is often called the Red Planet because of its red soil.
Mars is the fourth planet from the sun. Befitting the red planet's bloody color, the Romans named it after their god of war. The Romans copied the ancient Greeks, who also named the planet after. NASA's Hubble Space Telescope snapped this shot of Mars on Aug. 26, , when the Red Planet was million miles from Earth.
The picture was taken just 11 hours before Mars made its closest. - Mars Research Mars, the red planet, is the fourth planet from the sun and the most Earth-like planet in our solar system. It is about half the size of Earth and has a .