Lynn was referring to decades of controversy over whether it was possible to develop a missile that could hit and destroy an incoming missile in flight, and to do so at a reasonable and sustainable cost.

VOA: standard.2010.03.26

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

VOA: special.2009.12.21

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

Jeff Chelsky, a World Bank senior economist,says investors are avoiding higher risk debt in a flight to quality.

VOA: special.2009.03.13

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

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

And NASA is also being called on to develop new technologies to solve problems involved in long-term space flight for humans and robots.

VOA: special.2010.04.28

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

VOA: special.2010.07.07

She wrote about their flight in a single-engine airplane over Canada and Alaska to Japan and China.

VOA: special.2009.06.28

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

And in nineteen ninety-eight, at age seventy-seven, he returned to space in an historic flight.

VOA: special.2009.06.17

It happened so early in the flight, at a level of about 900 meters, that the crew had little time to decide what to do.

VOA: special.2009.01.30

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