The light speed is about 1,080,000,000 kilometres per hour. And it takes about eight minutes for it to reach earth fr the Sun. Now imagine how far away Sun is. (It’s 149,597,870 kilometres). The fastest spacecraft was NASA’s Juno probe which had a maximum speed of 266,000 kilometres per hour). Now tell me how long it would take to reach sun at that speed and get back to earth?
The light speed is about 1,080,000,000 kilometres per hour. And it takes about eight minutes for it to reach earth fr the Sun. Now imagine how far away Sun is. (It’s 149,597,870 kilometres). The fastest spacecraft was NASA’s Juno probe which had a maximum speed of 266,000 kilometres per hour). Now tell me how long it would take to reach sun at that speed and get back to earth?