And editor Robert Coontz says the top 10 breakthroughs also included the discovery of water on the moon by the LCROSS mission.

VOA: standard.2009.12.24

In the early-1950s, Les Paul and Mary Ford had other Top 10 hits, including "Vaya Con Dios,"

VOA: standard.2009.08.14

Released in 1955, it was the first of more than a dozen Top 10 R&B hits Richard collected over the next three years.

VOA: standard.2010.07.08

A year later, he notched his first Top 10 single as a solo artist, "Just Another Day."

VOA: standard.2010.04.02

Joblessness stands at 9.5 percent, and many economists expect it to top 10 percent in coming months.

VOA: standard.2009.08.05

In his new book, "The 5-Factor World Diet", he ranks the world's top 10 healthiest nations.

VOA: standard.2010.02.23

Ten years ago, almost all of Miami's top 10 radio stations broadcast in Spanish.

VOA: standard.2010.04.19

The collection gave Lionel his first Top 10 debut on the Billboard 200 chart.

VOA: standard.2009.06.24

The prestigious journal Science is out with its top 10 breakthroughs of 2009.

VOA: standard.2009.12.24

His 2009 Number One hit "Big Green Tractor" is Number 10 on the year's Top Country Songs list.

VOA: standard.2009.12.22

The United States has provided about $10 million of military equipment and supplies to the Somali government, and the State Department's top envoy to Somalia says more assistance will be on the way.

VOA: standard.2009.07.31