SpaceX Says It Knows Why Crew Dragon Exploded

Posted on Categories Discover Magazine

SpaceX's Crew Dragon spacecraft opens its nose cone before docking with the International Space Station on March 3. (Credit: NASA) Almost three months after SpaceX’s Crew Dragon capsule blew up during a test on April 20, the results of the investigation place blame on a leak and a faulty valve. According to a report released by SpaceX, the “anomaly” in the test occurred about 100 milliseconds prior to ignition of the last thrusters. The leak let nitrogen tetroxide, a comb ...read more

Protests Resume in Hawaii With Start of Thirty Meter Telescope Construction

Posted on Categories Discover Magazine

Telescopes atop Mauna Kea in Hawaii. (Credit: EastVillage Images/Shutterstock) The Thirty Meter Telescope (TMT) has had a tumultuous start. Set to be the world’s largest visible light telescope, construction was slated to begin in 2015 near the peak of Hawaii’s Mauna Kea. But protests over construction on a mountain considered sacred by some Native Hawaiians stalled the project and sent it back to the courts. As a result, the TMT had to restart the lengthy approval process. T ...read more

ISS Mouse Experiment Tests How the Body Adapts to Living on the Moon

Posted on Categories Discover Magazine

Japan's experiment module on ISS, called Kibo. (Credit: NASA) Astronauts living on the International Space Station spend hours working out every day just to avoid losing serious muscle mass and bone density in microgravity. But will such precautions be needed to live on worlds that are simply lower in gravity than Earth, like the moon and Mars? And what effect would such gravity have on growing children? These questions are almost entirely unanswered by science, but they're vital for humani ...read more

At STEM Competitions, Gender Norms Still Hold Girls Back

Posted on Categories Discover Magazine

Rachel Seevers shows off her jellyfish-inspired propulsion device at ISEF. (Credit: Chris Ayers, Society for Science & the Public) Seventeen-year-old Rachel Seevers waited nervously at the 2019 International Science and Engineering Fair (ISEF). The high school senior was about to demonstrate a new kind of underwater propulsion system she’d created and tested in her parents’ basement. But no one came to talk to her. So, Seevers tried an experiment. She and a nearby male partici ...read more

The Canadians Who Got America to the Moon

Posted on Categories Discover Magazine

Canadian John Hodge, left, with astronaut Al Shepard and Flight Director Chris Kraft. NASA. There was nothing particularly different about February 20, 1959. For the workers at the A.V. Roe plant in Malton, Ontario, it was just another Friday working on cutting-edge aircraft before the chilly winter weekend. Then, out of nowhere that afternoon, the plant’s public announcement system crackled to life. A.V. Roe’s President Crawford Gordon’s angry voice addressed the workforce ...read more

Page 30 of 805« First...1020...2829303132...405060...Last »