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Mars and Earth: The similarities
Everything we've learned about Mars over the last century suggests that the planet was once able of hosting ecosystems.
- Mars is just over half the size of Earth.
- Gravity is only 38 percent than that of Earth's.
- It rotates around its axis at about the same speed as Earth, meaning that a day on Mars is just 40 minutes longer than on Earth.
- One year on Mars takes about 687 Earth days.
- Mars has the same amount of habitable surface as Earth. It also contains ice on the polar caps.
But Mars is wrapped in a thin carbon dioxide atmosphere and cannot support earthly life forms.
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Mars
- Mars has captivated people since we first saw the reddish hue object in the night sky. In the late 1800s, telescopes revealed a surface full of patterns and landforms thought to be a bustling Martian civilisation.
- Now, we know there are no constructions on Mars. H...
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Mars: Past missions, major discoveries
Since 1960, dozens of spacecraft have been sent to Mars. It is difficult to send a spacecraft to Mars and even harder to land on the planet because of the thin atmosphere.
Data revealed the largest volcanoes in the solar system and one of the largest canyons yet discovered. Dust storms reg...
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Why explore Mars
When scientists view the Martian surface, they see branching streams, river valleys, basins, and deltas, suggesting that the planet may have once had a vast ocean covering its northern hemisphere. It was likely wrapped in a thick atmosphere able to maintain liquid water.
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Future of Mars exploration
Once every 26 months, Earth and Mars are aligned to enable spacecraft to reach it in about half a year. Space agencies launch probes during these conjunctions.
- The most recent launches were the Hope spacecraft of the United Arab Emirates, to study its atmosphere and ...
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Mars: Past missions, major discoveries
Since 1960, dozens of spacecraft have been sent to Mars. It is difficult to send a spacecraft to Mars and even harder to land on the planet because of the thin atmosphere.
Data revealed the largest volcanoes in the solar system and one of the largest canyons yet discovered. Dust storms reg...
Surface
The red planet is actually many colors. At the surface, we see colors as brown, gold, and tan. The reason Mars looks reddish is due to oxidization—or rusting—of iron in the rocks, regolith (Martian “soil”), and dust of Mars. This dust gets kicked up into the atmosphere and from a distance makes t...
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