• NASA's Mars Helicopter Completes Flight Tests https://www.jpl.nasa.gov/news/news.php?feature=7361 3 comments 1/4/2019 worldnews
• NASA's Mars Helicopter Completes Flight Tests https://www.jpl.nasa.gov/news/news.php?release=2019-052&rn=news.xml&rst=7361 19 comments 28/3/2019 space
• NASA’s Mars helicopter completes flight tests,a small autonomous rotorcraft, will travel with the agency’s Mars 2020 rover, currently scheduled to launch in July 2020 https://www.myheartcares.com/2019/04/nasas-mars-helicopter-completes-flight-tests.html 151 comments 3/4/2019 space