At the time of the moon landing in 1969, many people envisioned that by the beginning of the 21st century, space travel would become routine, and we would be visiting other planets in our solar system and perhaps even daring to venture into interstellar space. That future didn't arrive as planned. And other countries are looking to reach Mars as well. But those who've long dreamed of humans becoming a truly spacefaring race argue that exploring space provides down-to-earth benefits in areas such as health, mining and security. And more inspirational benefits, too. Here are some of the most compelling arguments for continuing the exploration of space. If we don't want to go the way of the dinosaurs someday, we need to protect ourselves against the threat of being hit by a big asteroid. According to NASA, typically about once every 10,000 years, a rocky or iron asteroid the size of a football field could smash into our planet's surface and possibly cause tidal waves big enough to inundate coastal areas.

But it's the real monsters - asteroids about 328 feet (100 meters) across or bigger - that we really have to fear. NASA's Double Asteroid Redirection Test, set for launch in late September 2022, will be the first mission to demonstrate a technology called asteroid deflection by kinetic impactor. A robotic spacecraft will be crashed into the binary asteroid system Didymos, in an effort to show that it's possible to slightly alter the path of an asteroid. A very long list of gadgets, Titan Rise Formula materials and processes originally were developed for the U.S. Earth - so many that NASA has an office that looks for ways to repurpose space technology as products. We all know about freeze-dried food, but there are plenty of others. In the 1960s, for example, NASA scientists developed a plastic coated with a metallic reflecting agent. When used in a blanket, it reflects about 80 percent of a user's body heat back to him or her - an ability that helps accident victims and post-marathon runners to stay warm.
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Another more obscure but valuable innovation is nitinol, a flexible but resilient alloy that was developed to enable satellites to spring open after being folded into a rocket. The International Space Station alone has generated scores of medical innovations with uses on Earth, such as a method for delivering cancer-fighting medication directly to tumors