He defended his decision to end the Constellation program that NASA began under former President George W.Bush.

VOA: special.2010.04.28

NASA is to continue developing the Orion crew capsule, which was part of the cancelled Constellation program.

VOA: special.2010.04.28

He thinks NASA should focus on getting to Mars, not going to the moon under the Constellation program.

VOA: standard.2010.04.15

That budget would end funding for the Constellation program, which would have returned U.S.astronauts to the moon as a stepping stone to Mars.

VOA: standard.2010.04.15

But the Obama administration says it wants to scrap the program, known as Constellation, following an independent panel's finding that NASA lacks the resources to see it through.

VOA: standard.2010.03.18

Shuttle worker Jeffrey Bell argues NASA should continue with Constellation.

VOA: standard.2010.03.18

Three more Space Shuttle missions are scheduled for this year. The end of the Space Shuttle and the cancellation of the Constellation program, will cost 7,000 people their jobs at the Kennedy Space Center in Florida.

VOA: standard.2010.04.15