this post was submitted on 17 Apr 2025
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Today I Learned (TIL)

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You learn something new every day; what did you learn today? Submit interesting and specific facts about something that you just found out here.

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The original was posted on /r/todayilearned by /u/voidinvelvet on 2025-04-17 10:18:42+00:00.

Original Title: TIL that the Mariana Trench, the deepest part of Earth’s oceans, descends nearly 11 kilometers (about 36,000 feet) into complete darkness. Down there, temperatures are near freezing, and the pressure is over 1,000 times greater than at sea level enough to crush most human-made submarines.

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