Scientists at the Goddard Space Flight Center in Greenbelt,Maryland, found the substance glycine in material brought back to Earth from a comet.

VOA: special.2009.09.30

Visitors to Mars Day crowded around a piece of the meteorite in the huge Milestones of Flight Gallery.

VOA: special.2010.07.28

Tens of thousands of birds stop in the Cape May area on their flight south for the winter.

VOA: special.2009.06.01

In the late nineteen nineties, the Canadian professor was working in Nepal when his return flight was canceled.

VOA: special.2009.12.21

And they had to make this move without the equipment in the command module that kept the spacecraft on its flight path.

VOA: special.2009.07.22

But his flight gave Americans the feeling that the United States could pull ahead of the Soviet Union in the space race.

VOA: special.2009.07.08

Their purpose was to explore some of the problems of manned flight, during short periods,in lower space.

VOA: special.2010.07.07

Researchers believe the increase in heart rate might demonstrate what they call the fight or flight response.

VOA: special.2009.08.18

The pilot spent fifty hours in a simulator -- a copy of the plane on the ground -- preparing for his ten-minute flight.

VOA: special.2010.07.07

Once the flight landed in New York he deployed the emergency slide and left the plane.

VOA: special.2010.08.13

The X-15 was the first major investment by the United States in manned space flight technology.

VOA: special.2010.07.07

The air pressure in a plane during flight is lower than at sea level.

VOA: special.2009.07.14

Scientists developed the new welding technology at the Marshall Space Flight Center in Montgomery,Alabama.

VOA: special.2009.12.30

It was used in nineteen sixty-one during the flight of astronaut Alan Shepard.

VOA: special.2010.02.28

Flight attendants tell what to do "in the event of a water landing."

VOA: special.2009.01.30

Alan Shepard made only a fifteen-minute flight in the little one-man Mercury spacecraft.

VOA: special.2009.07.08

His flight ended when his spacecraft landed in the ocean,as planned.

VOA: special.2010.02.28

But Steven Slater is in a lot of legal trouble and details of exactly what happened on that JetBlue flight and how he acted are still up in the air.

VOA: special.2010.08.13

Bob Dempsey, at the Johnson Space Center in Texas, is the lead International Space Station flight director for this mission.

VOA: standard.2010.02.18

He spoke to reporters at the airport in Pakistan's southern coastal city of Karachi before his flight late Wednesday.

VOA: standard.2010.04.23

One effect of the attempt to blow up flight 253 is increased security at international airports in Europe.

VOA: standard.2009.12.27

The Sonex and Sikorsky projects are two examples in a growing field of innovation in electric powered flight - most in their infancy.

VOA: standard.2010.08.11

NASA officials cleared the flight after technicians fixed a hydrogen leak in the shuttle's fueling system, which delayed the launch from last week.

VOA: standard.2009.03.15

The attempted bombing by a Nigerian of a U.S.-bound flight has provoked sharp reactions in image-conscious Nigeria.

VOA: standard.2009.12.28

Astronaut Neil Armstrong, the first human to step on the Moon, observed the extraordinary accomplishment of the Apollo 11 mission forever established a lasting legacy in space flight.

VOA: standard.2009.07.16