![What’s Up With That Square Structure on Mars What’s Up With That Square Structure on Mars](https://i.ytimg.com/vi/dYDa9cZptTY/maxresdefault.jpg)
Go to https://ground.news/startalk to stay fully informed on the latest Space and Science news. Save 40% off through our link for unlimited access to the Vantage plan this month. What's up with the square structure discovered on Mars? Neil deGrasse Tyson breaks down the Mars Global Surveyor, ...
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