The fire was so big that American astronaut John Glenn could see it from space as he orbited Earth.

VOA: special.2009.03.22

Yet,it took some time for the team to confirm that the amino acid glycine came from space.

VOA: special.2009.09.30

Many scientists believe that a huge object from space hit Earth about 65 million years ago.

VOA: special.2009.01.20

The presence of carbon thirteen confirmed that the glycine was from space.

VOA: special.2009.09.30

Some are so large that they can be seen from space.

VOA: special.2010.08.10

Dr.Craig Smith,the chief executive of Electro Optic Systems, says laser beams fired from the ground could protect astronauts and satellites by targeting space junk that travels at potentially devastating speeds.

VOA: standard.2010.07.24

"So we are really talking about drastic reductions, and they must come from countries which have overused their share of the global atmospheric space, which have a natural debt that must be paid, and I think if countries like India are asking for that, it is not wrong.

VOA: standard.2009.11.27