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Science & Space

The most popular blog posts about science & space on Hacker News. 159 posts.

2026
17

The hidden engineering of runways

[Note that this article is a transcript of the video embedded above.] September 2025 was an unusually bad month for runway overruns in the US. On the night of September 24th, an Embraer 145 with 53 people on board landed long at the Roanoke-Blacksburg Regional Airport in Virginia, overshooting the

18

The Los Angeles Aqueduct Is Wild

[Note that this article is a transcript of the video embedded above.] On the northern edge of Los Angeles, fresh water spills down two stark concrete chutes perched on the foothills of the San Gabriel Mountains, a place simply called The Cascades. It’s a deceptively simple-looking finish line: the

19

The Mathocalypse

More Updates (Oct. 12): Jeffrey Ketchersid has used Claude Code agents to show that BusyBeaver(10) exceeds Graham’s number, beating the previous best result that BB(13) does so. In response t…