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Long, dark 'streaks' spotted on Mars aren't what scientists thought - Live Science

11.06.2025 08:05

Long, dark 'streaks' spotted on Mars aren't what scientists thought - Live Science

Mysterious dark streaks flowing across Mars

The streaks, first observed running al… [+2456 chars]

's surface may not be the result of running water after all, a new artificial intelligence (AI) analysis suggests.

I took a video of my serve (60 FPS) and it took 0.4 seconds from my racket to the service line. How fast would you say my serve was?