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1 day ago · Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass. It is a periodically conspicuous reddish object in the night sky. There are intriguing clues that billions of years ago Mars was even more Earth-like than today.
- 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...
13 hours ago · Mars may face more than twice as many close encounters with potentially dangerous asteroids as Earth does, according to a new study. This could imperil exploratory missions to the Red Planet, but ...
3 days ago · Mars. Altitude: 42.5° Azimuth: 147.6° Direction: South-South-East. Mars is a terrestrial planet located fourth from the Sun in the Inner Solar System. It has a diameter of 6,779 kilometers and a mass of 6.39 x 10^23 kilograms, making it roughly half the size of Earth.
2 days ago · The planet Mars has been explored remotely by spacecraft. Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in knowledge about the Martian system, focused primarily on understanding its geology and habitability potential.
2 days ago · Space, the saying goes, is hard. And the farther humans go, the harder it can get. Some of the challenges on missions to explore the Moon and Mars include preventing microbial contamination of these destinations, navigating there safely, protecting crew members and hardware from radiation, and maintaining and repairing equipment.
3 days ago · By Evan Gough, Universe Today. The mysterious hole in Arsia Mons, captured by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The pit is only a few meters across, but we don't know how deep. (NASA/JPL-Caltech/UArizona) Human visitors to Mars need somewhere to shelter from the radiation, temperature swings, and dust storms that plague ...
5 days ago · 1. Mars is often the most popular planet with space enthusiasts. As the fourth planet from the Sun, and one of Earth’s closest neighbors, Mars has always held a fascination for many people. 2. How close is close? Mars is one of the Earth’s nearest planetary neighbors in the Solar System – if you can call 140 million miles close… 3.
