Martian Surface

The fourth planet from the Sun in the solar system. Mars orbits the Sun at an average distance of 1.52 AU. The planet has a mass 0.1 times the mass of Earth and a radius 0.5 times the radius of Earth. It is made of solid, rocky material, and has a thin atmosphere of carbon dioxide. Iron oxide, or rust, on the surface of Mars gives it its characteristic red color. The planet has bright polar ice caps made of frozen water and carbon dioxide. Mars also has two small moons, Phobos and Deimos.

Resources

Mars Mars inspires speculation like no other world in...

Radio Programs

Moon and Mars Digging holes on other worlds Saturday, May 10, 2014
Moon and Companions Seeing orange on a nearby planet Monday, March 17, 2014
Moon and Mars A garden spot on the Red Planet Wednesday, February 19, 2014
Moon and Mars Taking a trip to Mars Tuesday, January 21, 2014
Moon and Mars A comfortable planetary neighbor Monday, October 28, 2013
Moon and Mars Gentle giants on the planet Mars Sunday, September 29, 2013
Moon and Mars Drilling holes in the surface of Mars Sunday, September 1, 2013
Moon and Mars Prime real estate on other worlds Wednesday, September 19, 2012
Sky Crane A complicated landing for a complicated rover Sunday, August 5, 2012
Martian Nuke Powering up a Mars rover Saturday, August 4, 2012
Moon and Mars Listening in to the Red Planet Monday, June 25, 2012
Secret Mars Unlocking the secrets of the Red Planet Friday, March 2, 2012
Warming Mars Warming up a desert planet Sunday, February 19, 2012
More Moon and Mars Scaling the heights of Mars Friday, January 13, 2012
Moon and Mars Molding the image of the Red Planet Friday, December 16, 2011
Mars Science Laboratory I Plumbing for water on Mars Tuesday, November 22, 2011
More Moon and Companions Settling in on a new world Friday, November 18, 2011
Moon and Mars Strolling on alien worlds Thursday, October 20, 2011
Watery Mars Divining for water on Mars Thursday, April 14, 2011
Living in Space III Keeping tidy on other worlds Thursday, September 16, 2010
Life in the Solar System Looking for life in all the right places Tuesday, September 7, 2010
Mars and Regulus II Stripping away the Martian atmosphere Monday, June 7, 2010
Lasers III Getting back at Mars Wednesday, May 19, 2010
Moon and Mars Just talking about the weather Wednesday, March 24, 2010
Giovanni Schiaparelli Digging up Martian canals Sunday, March 14, 2010
Extreme Mars Highs and lows on the Red Planet Tuesday, January 26, 2010
Mars Looking in on a close neighbor Monday, January 25, 2010
Hellas Basin Mars takes a lickin' Tuesday, December 29, 2009
Hourglass Sea Mapping the Hourglass Sea Saturday, November 28, 2009
Moon, Mars, and Gemini A surprising place for a snowball fight Saturday, October 10, 2009
Mars in the Morning Ancient channels on Mars Wednesday, September 30, 2009
Moon and Mars Giant volcanoes on a quiet planet Saturday, September 12, 2009
Moon and Mars Settling down on a friendly planet Friday, August 14, 2009
Moon and Planets Blowing in the Martian winds Thursday, June 18, 2009
Martian Impact A violent solar-system collision Tuesday, June 16, 2009

Featured Images

Artist's concept of early morning fog, clouds, and frost on Mars
Morning Fog Tuesday, April 8, 2014
Downhill Racer Saturday, February 22, 2014
Fresh Martian impact crater seen by an orbiting spacecraft in late 2013
Fresh Impact Friday, February 7, 2014
Rio Tinto, a river in Spain, is a Mars analog
Red River Wednesday, October 9, 2013
Kasei Valles, an ancient flood channel on Mars
Ancient Flood Monday, June 10, 2013
Curiosity rover view of Mount Sharp, March 2013
Sharp Destination Tuesday, March 19, 2013
Curiosity view of Rocknest on Mars
Rocky Home Thursday, November 29, 2012
Early view of the rim of Gale Crater
Inside the Wall Sunday, August 12, 2012
August 8, 2012, view of Mars from the Curiosity rover
Getting Acquainted Wednesday, August 8, 2012
Endeavour Crater, winter home of the Opportunity Mars rover
Winter Wonderland Thursday, January 26, 2012
Craters fill an ancient river channel on Mars
Martian Rapids Monday, October 10, 2011
Panoramic view of Endeavour crater on Mars, imaged by the Opportunity rover
Final Destination Thursday, August 11, 2011
Rock varnish on a rock from the Atacama Desert
Bacteria Colony? Friday, July 29, 2011
Scientists are studying rocks in Chile to learn about possible life on Mars
Looking for Life Wednesday, July 27, 2011
Chile's Atacama Desert is an analog for studying conditions on Mars
Mars on Earth Tuesday, July 26, 2011
The Opportunity rover crosses the Martian plains toward Endeavour crater
Crater Crawling Saturday, April 16, 2011
Image of water distribution in northern hemisphere of Mars
Watery Mars Thursday, April 14, 2011
Ground and orbital views of Opportunity rover at Santa Maria crater
Looking In Tuesday, February 8, 2011
Over the Rim Friday, December 31, 2010
The Opportunity rover casts it shadow on the rim of a Martian crater
Martian Robot Wednesday, December 29, 2010
The next Mars rover, Curiosity, zaps a Martian rock with a small laser in this a
War of the Worlds? Wednesday, May 19, 2010
Martian 'Canali' Sunday, March 14, 2010
A Hole in Mars Tuesday, December 29, 2009
Martian Tattoo Monday, November 2, 2009
Dirty Secrets Wednesday, November 12, 2008
Going, Going, Gone Monday, November 10, 2008
Summer Days Friday, July 4, 2008
Martian Dust-Up Sunday, November 25, 2007
Stepping Up to the Plate Thursday, April 12, 2007
Watch Your Feet! Wednesday, March 14, 2007
Dirty Devils Wednesday, October 25, 2006
Gassy Eruptions Monday, August 21, 2006

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