Hacker News on 14 March 2021

• Security.txt
• Satellite imagery shows Northern California kelp forests have collapsed
• Reprojecting the Perseverance landing footage onto satellite imagery
• Tweeting “Memphis” autolocks your Twitter account
• Why are tar.xz files 15x smaller when using Python's tar compared to macOS tar?
• I wrote one of the fastest DataFrame libraries
• EBPFSnitch: An eBPF based Linux Application Firewall
• Refund of pre-installed Windows: Lenovo must pay 20k euros in damages
• LeoCAD 21.03
• SpaceX delivers 3rd batch of Starlink satellites in two weeks