Mars' Valles Marineris Found Still Tectonically Active, Study Reports

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Researchers at Columbia's Lamont-Doherty Earth Observatory report that Valles Marineris, a roughly 4,000-kilometer canyon system splitting Mars, shows ongoing tectonic movement. The finding challenges the view that the feature is geologically inactive. The study's coverage on Hacker News sparked discussion that shifted from planetary geology to the long-held belief that amblyopia can only be treated in early childhood. The article's author, who was diagnosed with amblyopia as a child, describes using a virtual reality app that presents separate visual inputs to each eye as a training approach.

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