Suchergebnisse
Suchergebnisse:
Learn about Mars' namesake, potential for life, size, orbit, moons, rings, formation, structure, surface, atmosphere, and magnetosphere. Explore the history and exploration of Mars with NASA missions and images.
- In Depth
When the solar system settled into its current layout about...
- In Depth
The geological history of Mars can be split into many periods, but the following are the three primary periods: Noachian period: Formation of the oldest extant surfaces of Mars, 4.5 to 3.5 billion years ago. Noachian age surfaces are scarred by many large impact craters.
Vor 3 Tagen · Mars is designated by the symbol ♂. Sometimes called the Red Planet, Mars has long been associated with warfare and slaughter. It is named for the Roman god of war. As long as 3,000 years ago, Babylonian astronomer-astrologers called the planet Nergal for their god of death and pestilence.
- Mars is less than 56 million km (35 million miles) from Earth at its closest approach, but it recedes to almost 400 million km (250 million miles)...
- Mars is the second smallest planet in the solar system, only larger than Mercury and slightly more than half the size of Earth. It has an equatoria...
- Mars is similar to Earth in many ways. Like Earth, it has clouds, winds, a roughly 24-hour day, seasonal weather patterns, polar ice caps, volcanoe...
- The characteristic temperature on Mars in the lower atmosphere is about 200 kelvins (K; −100 °F, −70 °C), which is generally colder than the averag...
- The Viking landers are two robotic U.S. spacecraft launched by the National Aeronautics and Space Administration (NASA) for the study of the planet...
- Space colonization, on Mars or elsewhere, is widely debated. Some argue humans have a moral duty to save our species from extinction, and space col...
Learn about Mars, the fourth planet from the Sun, and its history of robotic and human exploration. Find out how NASA missions have revealed Mars' past and present climate, surface features, and potential for life.
1. Sept. 2019 · Learn how Mars evolved from a hot and wet world to a cold and dry one over 4.5 billion years. Discover the geological periods, features and history of the Red Planet based on crater counts, impact basins, volcanoes and minerals.
This principle, called the law of superposition, along with other principles of stratigraphy first formulated by Nicholas Steno in the 17th century, allowed geologists of the 19th century to divide the history of the Earth into the familiar eras of Paleozoic, Mesozoic, and Cenozoic.
