That is because the force of the object hitting Jupiter pushed very reflective particles high into the planet's atmosphere.

VOA: special.2009.08.25

The atmosphere is about twenty-percent oxygen and eighty percent nitrogen from Earth's surface to where space begins at one-hundred-twenty kilometers up.

VOA: special.2011.04.06

Scientists have long believed that Earth's satellite lacks the ability to hold water near its surface because it has no atmosphere.

VOA: special.2009.09.30

Mister Schroeder says that carbon dioxide levels in the atmosphere are much higher now than they were in the past.

VOA: special.2010.01.26

"I like the atmosphere. It's fun to learn things and enjoy a good beer. "I would call this a civilized education."

VOA: special.2010.05.14

He says the substances are especially dangerous because they travel through the air and stay in the atmosphere, soil and water.

VOA: special.2009.06.23

Those scientists included researchers who question the idea that human activity is causing temperatures in the atmosphere to rise.

VOA: special.2010.04.27

The severe economic crisis -- the Great Depression -- created an atmosphere for artistic imagination and creative expression.

VOA: special.2011.04.14

It was the only part of the spacecraft that could survive the fiery return through the Earth's atmosphere.

VOA: special.2009.07.22

Currently,the best explanation for the loss of methane is that it chemically reacts with dust in the atmosphere.

VOA: special.2009.12.30

Professor Caplan also believes that concerns about the possible escape of manufactured cells into the atmosphere are real.

VOA: special.2010.07.20

Scientists believe it is evidence that a large object struck Jupiter, cutting a hole in the atmosphere of the huge, gaseous planet.

VOA: special.2009.08.25

The report said the director of the Climatic Research Unit did not attempt to hide evidence disputing the warming of Earth's atmosphere.

VOA: special.2010.04.27

The flight tested the heat shield. The shield protected the spacecraft from the great heat produced when it returned through the Earth's atmosphere.

VOA: special.2009.06.10