null


No row selected
No row selected
     2 months ago

May be an image of 2 people, outer space and text that says '补纸 Elon Musk's hypersonic jet reaching the speed of light is impossible and defies physics. While SpaceX focuses on space travel, true hypersonic jets may reach Mach 5-10, not light speed.'


No row selected
No row selected
      2 months ago
Sign up to post a reply