SOLAR SYSTEM

Detailed explanation-1: -The future of space flight will be the same as it is today: scientific robotic exploration and limited commercial missions, such as communication satellites. Meanwhile, the future of space travel for humans will still be a fantasy. These are just a few reasons why.

Detailed explanation-2: -Yet the edge of space – or the point where we consider spacecraft and astronauts to have entered space, known as the Von Karman Line – is only 62 miles (100 kilometers) above sea level. If playback doesn’t begin shortly, try restarting your device.

Detailed explanation-3: -NASA engineers will develop new technologies to improve air transport at home and meet the challenges of advanced space exploration. Our scientists will work to increase an understanding of our planet and our place in the universe. We will continue to try to answer the question, “Are we alone?”

Detailed explanation-4: -The launch of a spacecraft comprises a period of powered flight during which the vehicle rises above Earth’s atmosphere and accelerates at least to orbital velocity. Powered flight ends when the rocket’s last stage burns out, and the spacecraft separates and continues in freefall.

Detailed explanation-5: -The main objective of Space Biology research is to build a better understanding of how spaceflight affects living systems in spacecraft such as the International Space Station (ISS), or in ground-based experiments that mimic aspects of spaceflight, and to prepare for future human exploration missions far from Earth.

Detailed explanation-6: -That  18 billion light-year figure is the limit of the reachable Universe, set by the expansion of the Universe and the effects of dark energy.