Astronaut Ellen Ochoa, STS-110 flight engineer, dons a training version of the full-pressure launch and entry suit prior to a training session at the Johnson Space Center (JSC). Suit technician Andre Denard assists Ochoa. STS-110 took place in April, 2002 and was the 13th shuttle mission to visit the International Space Station (ISS). NASA hide caption
Allan McDonald in 2016 holds a commemorative poster honoring the seven astronauts killed aboard the space shuttle Challenger. Howard Berkes/NPR hide caption
American astronaut Paul J. Weitz, right, with Joseph P. Kerwin, left and Charles "Pete" Conrad Jr., center. The crew of the first manned Skylab mission is shown in May 1973. AP hide caption
SpaceX's Falcon 9 rocket is prepared Friday for a launch at the Kennedy Space Center in Florida. Launch Pad 39A, one of the renovated space shuttle launch pads that SpaceX leases from NASA, has been the site of many of NASA's most famous liftoffs. Bruce Weaver/AFP/Getty Images hide caption
Brazlian jet maker Embraer employs about 600 people in Melbourne, Fla., and is expanding. Greg Allen/NPR hide caption
The last remaining space shuttle external propellant tank is moved across the 405 freeway in Los Angeles on Saturday. The ET-94 will be displayed with the retired space shuttle Endeavour at the California Science Center. Chris Carlson/AP hide caption
Bob Ebeling, now 89, at his home in Brigham City, Utah. Howard Berkes/NPR hide caption
A giant cluster of about 3,000 stars called Westerlund 2. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. NASA, ESA, STScI/AURA hide caption
A stump remains in the median of Manchester Boulevard as workers remove trees to clear a path for the space shuttle Endeavour in Inglewood, Calif., Tuesday. Residents are upset that 400 trees might be cut down to allow the shuttle to travel from the airport to its new home at a science center. Reed Saxon/AP hide caption
SpaceX rocket Falcon 9 at Cape Canaveral in Florida was scheduled to launch Saturday morning, but aborted just before liftoff. Roberto Gonzalez/Getty Images hide caption
More than a million people were expected in the area around the Kennedy Space Center to watch the launch. Many arrived before sunrise to claim the best seats. Scott Cameron/NPR hide caption
Michael Soluri's black and white film photographs of NASA's human space flight programs over the years, spanning Apollo and the Space Shuttle Copyright Michael Soluri - All Rights Reserved hide caption
Space Shuttle Atlantis lands at Kennedy Space Center July 21, 2011 in Cape Canaveral, Florida. Joe Raedle/Getty Images hide caption
Food packets containing the astronauts' "all-American meal," including (clockwise from top left) corn, chicken, brisket, and beans, along with a lemonade, at right. Devin Boldt/NASA - JSC hide caption
Astronaut's Guide To Life In Space NASA hide caption
The space shuttle Atlantis lifts off from the Kennedy Space Center Friday, July 8, 2011, in Cape Canaveral, Fla. Morry Gash/AP hide caption
Onlookers crowd around their cars in the NASA causeway as they watch the US Space Shuttle Atlantis blast off into orbit from launch pad 39-B at Kennedy Space Center in the early morning hours of July 12 2001. Brian Cleary/AFP/Getty Images hide caption
