The fifteen-minute flight ended with a soft splash into the ocean about five hundred kilometers from Cape Canaveral.
VOA: special.2011.05.15
It turns out to be-- there's a fairly complicated balance between the time of flight and the range.
答案表明,在飞行时间与射程之间,有着一个相当复杂的平衡关系
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
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
She wrote about their flight in a single-engine airplane over Canada and Alaska to Japan and China.
VOA: special.2009.06.28
They were more than two-thirds of the way to the moon on a flight path that would take them to a moon landing.
VOA: special.2009.07.22
Instead, he and co-pilot Jeffrey Skiles and their three flight attendants prepared for a water landing.
VOA: special.2009.01.30
One of them,the Apollo-11, traveled to the moon just seven months after the last X-15 flight.
VOA: special.2010.07.07
The X-15 was the first major investment by the United States in manned space flight technology.
VOA: special.2010.07.07
A non-stop flight around the world without re-fueling was the last flight record to be set.
VOA: special.2010.10.06
Since the emergency landing of flight fifteen forty-nine, special radars have received a lot of attention.
VOA: special.2009.04.01
All two hundred twenty-eight people on the flight from Rio de Janeiro to Paris were killed.
VOA: special.2009.06.13
And in nineteen ninety-eight, at age seventy-seven, he returned to space in an historic flight.
VOA: special.2009.06.17
The agency carried out a test flight of its next-generation launch vehicle for astronauts.
VOA: special.2009.12.30
By November,nineteen sixty-seven, the moon launch rocket,Saturn Five, was ready for a test flight.
VOA: special.2009.07.08
Five hours after the explosion, flight controllers advised firing the rocket for thirty-five seconds.
VOA: special.2009.07.22
It was used in nineteen sixty-one during the flight of astronaut Alan Shepard.
VOA: special.2010.02.28
Alan Shepard made only a fifteen-minute flight in the little one-man Mercury spacecraft.
VOA: special.2009.07.08
He would be launched early in May,nineteen sixty-one, on a short,fifteen minute flight.
VOA: special.2009.06.10
The final test flight was made at the end of January, nineteen sixty-one.
VOA: special.2009.06.10
The astronauts had planned to re-open the door during their four-day flight.
VOA: special.2009.06.24
He would circle the Earth three times during a five-hour Mercury flight.
VOA: special.2009.06.17
The final test flight was made at the end of January,nineteen sixty-one.
VOA: special.2009.06.17
Then the X-15 pushes over the top of its flight path.
VOA: special.2010.07.07
A chimpanzee named Enos was launched on a three-orbit flight.
VOA: special.2009.06.17
Wiley Post made his famous flight in July, nineteen thirty-three.
VOA: special.2009.03.18
The objects might have belonged to the two-person flight team.
VOA: special.2011.01.18
His space flight lasted one hour and forty-eight minutes.
VOA: special.2009.06.17
Everything was "A-OK" for an orbital flight.
VOA: special.2009.06.17
It was his seventh X-15 flight.
VOA: special.2010.07.07
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