I don't know why scientists keep studying these planets that man can never be able to reach not in this lifetime. 40 light-years would be approximately 378.4 trillion kilometers (234.8 trillion miles) away from Earth. So, even it would sustain life it will take voyager 1 (fastest spacecraft) approximately 70,000 (seventy thousand ) years to reach.
“NASA′s TESS Finds Intriguing World Sized Between Earth, Venus - Science@NASA”
“NASA′s TESS Finds Intriguing World Sized Between Earth, Venus - Science@NASA”