But Richard Branson is not the only one working to make space flight available to the public.

VOA: special.2009.12.18

Several companies are working to make drugs that can help lupus patients.

VOA: special.2009.04.14

We've been working to make our schools healthier. We've been working to increase the amount of physical activity that our kids are getting, not just during the day at school but also at home.

VOA: special.2010.06.07

Experts say any device used to heat a home should be inspected to make sure it is working correctly.

VOA: special.2010.02.02

For example,Mister Venter is working to design cells that can make it easier to capture carbon dioxide.

VOA: special.2010.07.20

He said: "When I saw hard-working people suffering under debts, sickness and worries, I knew there was plenty to make up songs about."

VOA: special.2010.06.13

"It's revolved around four main pillars. We've been working to give parents the information that they need to make healthy decisions for their families.

VOA: special.2010.06.07

Most of the money will go towards working with industry on new technologies to make human space flight safer.

VOA: standard.2010.04.15

"Even the most vociferous critics of the United States also want to make sure that the U.S.economy is working and growing again,"

VOA: standard.2009.04.19

"This is at a time when we are working to relaunch negotiations and we believe that these actions make it more difficult for our efforts to succeed.

VOA: standard.2009.11.17

Though election officials are still working toward a November 29 poll, observers fear there is still too much work to be done and scrambling to make the deadline could result in a flawed vote.

VOA: standard.2009.09.29