space science and tech
Gaofen‑7 vs Landsat‑9 Space: Space Science And Technology
Gaofen-7 delivers 1.5 cm ground resolution and a 30-minute revisit, while Landsat-9 provides 30 m resolution with a 16-day revisit, making the Chinese satellite far more agile for rapid environmental monitoring. In my experience, the difference feels like the contrast between a high-definition medical scanner and a standard X-ray.