NASA warned the three astronauts inside about one hour before the object was to reach the area of the station.

VOA: special.2009.04.01

The astronauts would ride to the moon in the command module and then ride back to Earth in it.

VOA: special.2009.07.22

For several tense minutes, the astronauts of Gemini Six were sitting on top of a highly explosive mass of rocket fuel.

VOA: special.2009.07.01

"We'll be up shortly," he said. A few minutes later, the astronauts were able to see each others' spacecraft.

VOA: special.2009.07.01

Air Force pilot Gordon Cooper became an expert on the Redstone Rocket that would launch Mercury astronauts on short training flights.

VOA: special.2009.06.10

The plan is for Orion to provide astronauts with a spacecraft that can link with the International Space Station.

VOA: special.2010.04.28

This meant the Apollo Eight astronauts could fire the rocket that would send them from Earth orbit toward the moon.

VOA: special.2009.07.08

Astronauts Frank Borman,James Lovell and William Anders were in the spacecraft at the top of the Saturn Five rocket.

VOA: special.2009.07.08

To explore the surface of the moon, astronauts must be able to survive outside the protection of their spacecraft.

VOA: special.2009.07.01

Back on Earth, space scientists and engineers worked around the clock to design and test new ideas to help the astronauts survive.

VOA: special.2009.07.22

Near the moon, the astronauts fired rockets to slow the spacecraft enough to put it into moon orbit.

VOA: special.2009.07.15

That was when men from Earth -- American astronauts flew their Apollo Eleven spacecraft to the moon, landed and returned home safely.

VOA: special.2009.07.29

Gemini's purpose was to bring the United States closer to its goal of landing astronauts on the moon.

VOA: special.2009.06.24

Three astronauts were named for the first manned Apollo test flight: Virgil Grissom, Edward White and Roger Chaffee.

VOA: special.2009.07.08

Now the problem was how to get the astronauts back to Earth as quickly and safely as possible.

VOA: special.2009.07.22

The astronauts' decrease in bone strength measured from point six percent to five percent for each month spent on the space station.

VOA: special.2009.03.10

Its purpose was to bring the United States closer to its goal of landing astronauts on the moon.

VOA: special.2009.07.01

Astronauts John Young, Thomas Mattingly and Charles Duke flew Apollo Sixteen to the moon in April,nineteen seventy-two.

VOA: special.2009.07.29

NASA also said the first astronauts had to be military pilots with experience in test flying airplanes.

VOA: special.2009.06.10

Two hours after Apollo Thirteen went around the moon, the astronauts fired the rocket for five minutes.

VOA: special.2009.07.22

One hundred forty meters from the surface, the astronauts took control of the lander from the computer.

VOA: special.2009.07.15

The Gemini astronauts were developing the control that would be needed for a trip to the moon.

VOA: special.2009.06.24

As the American astronauts continued to float through space, they inspected each other and each other's spacecraft.

VOA: special.2009.07.01

So astronauts Tom Stafford, John Young and Eugene Cernan did that during the flight of Apollo Ten.

VOA: special.2009.07.08

The new capsule could also be used if astronauts need to leave the station in an emergency.

VOA: special.2010.04.28

The team used the same computer program to study images of the hipbones of the thirteen astronauts.

VOA: special.2009.03.10

Gemini,it was hoped, would move America closer to its goal of landing astronauts on the moon.

VOA: special.2009.06.24

The astronauts also left many scientific devices that would continue to report information about the moon.

VOA: special.2009.07.29