"You'll find something on Earth as close to what is pretty much on Mars.

VOA: special.2010.07.28

But no matter what the size,tornado winds are the strongest on Earth.

VOA: special.2010.05.11

He told students it was time for them to learn what it means to be a human being on Earth at a time when every living system was failing.

VOA: special.2009.06.05

What and how the Japanese eat, he says,explains why they are the healthiest people on earth.

VOA: standard.2010.02.23

Both Melvin and Satcher say they hope there will be many more African-American space explorers inspired by what they've accomplished, not only in outer space but on Earth.

VOA: standard.2010.02.02

But the commissioners noted what they called 'the harsh fact that these countries are among the poorest on earth, and that the full claims would have been impossible for either side to pay.

VOA: standard.2009.08.20