Symptoms of Age-Related Macular Degeneration (AMD) An early symptom of wet AMD is that straight lines appear wavy. An Amsler Grid chart can help spot this early distortion of vision. You may also notice a small blind spot, resulting in a loss of central vision.
Traveling at approximately 29,000 km/h (18,000 mph) the shuttle orbits Earth every 90 minutes. By using current technology and a spacecraft powered by chemical rocket engines, a trip to Mars could take between six to nine months.
It takes 2 days. You might think that that's a long time for a space shuttle to go to the space station. Especially when you know that it takes about 2 minutes for the space sâ¦huttle to go into space. But here's why: The space station is orbiting the earth, and so will the space shuttle when it goes into space.