Mars Day offered Allison and Alysia's children a chance to learn more about a world that humans may set foot on within their lifetimes.

火星日为阿利森和阿莉西亚的孩子提供了一个机会让他们知道在他们有生之年可以涉足的另一个世界。

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China named its first Mars exploration mission Tianwen 1 on April 24, 2020, China's fifth Space Day.

2020年4月24日是中国第五个“航天日”，中国将其首次火星探测任务命名为“天问一号”。

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Say you learn something new, like how to say "thank you" in Russian, or the peak temperature of a hot day on Mars.

比如说你学到一些新东西，像如何用俄语说“谢谢”，或者火星上最热一天的最高温度。

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Mars Day at the Smithsonian Air and Space Museum in Washington is a celebration of our solar system's most famous planet.

VOA: special.2010.07.28

The Smithsonian's Mars Day offered a chance for people of all ages to touch Mars, or at least a piece of it.

VOA: special.2010.07.28

Visitors to Mars Day crowded around a piece of the meteorite in the huge Milestones of Flight Gallery.

VOA: special.2010.07.28

Neither was unexpected, but the details improve understanding of atmospheric cycles on present-day Mars, which helps with estimating how the cycles may have operated in the past.

ENGADGET: Curiosity rover finds radiation levels on Mars are safe for humans

It might sound like a weird cross between a hollywood storyline and a Craigslist personal add, but non profit organization Inspiration Mars Foundation is seeking a man and a woman to take part in a 501-day mission to Mars.

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The base will actually be built inside a real crater and the daytime temperature of -23 degrees Celsius is like a nice summer's day on Mars.

BBC: Destination Mars on Earth