the best science on the web about
Mars

All About Mars
Image: NASA

All About Mars

Like Earth, Mars' surface has been changed by volcanoes, meteor impacts, huge dust storms, and shrinking and expanding ice caps. Some scientists believe the planet may once have experienced the largest floods in the solar system.

Find out what we know about the Red Planet and why we're so interested in finding evidence of life on it.

NASA
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Fly to Mars

Fly to Mars

Can you land this spacecraft on Mars? Watch the positions of Earth and Mars as they orbit the sun, then hit "Launch" to fire your engines. Hint: Timing is everything! More...

Game
BrainPOP
NASA’s Orion Flight Test and the Journey to Mars

NASA’s Orion Flight Test and the Journey to Mars

One step closer to astronauts stepping on Mars — that's what NASA hopes we'll be after the December 2014 Orion test flight. Get details about this uncrewed, milestone mission. More...

Article
NASA
‘8 Planets and a Dwarf’ Sudoku

‘8 Planets and a Dwarf’ Sudoku

Love puzzles? This online Sudoku-like puzzle involves all the planets of the solar system, plus Pluto. Featuring 5 levels, you can start with “very easy” and work your way up to “extra challenging.” More...

Game
Windows to the Universe
Curiosity Rover’s First Drive on Mars

Curiosity Rover’s First Drive on Mars

What did Curiosity see during its first test drive on Mars? Take a look at the panorama the rover sent back of its landing site. More...

Images
Space.com
Mars: Facts and Information

Mars: Facts and Information

Ready for a challenge? Take an in-depth look at Mars' geology, composition, structure, orbit, rotation, and more. More...

Article
Space.com
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Dava Newman, Aerospace Engineer/Sailor

Dava Newman, Aerospace Engineer/Sailor

Aerospace engineer Dava Newman designs “second-skin” space suits to give astronauts more mobility while expending less energy. Find out why a more efficient space suit is important for travel to the moon. More...

Profile
NOVA/PBS
Orion Flight Test to Carry Mementos and Inspirational Items

Orion Flight Test to Carry Mementos and Inspirational Items

Ernie's rubber ducky, Grover's cape, and Cookie Monster's beloved cookie are set to travel into space along with a whole collection of fun and cool items. Take a look! More...

Article
NASA
Is There Life on Mars?

Is There Life on Mars?

For more than four decades, scientists have been trying to answer just that question. Go behind the scenes at NASA to see the clues they've found, and the challenges we still face. More...

Video
NOVA/PBS
6 Cool Takeaways from NASA’s Mars Rover Curiosity

6 Cool Takeaways from NASA’s Mars Rover Curiosity

After six months crawling Mars' surface, Curiosity delivered some big discoveries and conclusions. For starters, the red planet gets "pounded by radiation." Check out the rest. More...

Article
National Geographic
Comet Siding Spring: Duck and Cover!

Comet Siding Spring: Duck and Cover!

What will happen to the Mars orbiters when a comet just misses the planet on October 14, 2014? Hopefully nothing bad! See how NASA is preparing. More...

Article
NASA
Mars

Mars

Explore Mars, the planet most like Earth in our solar system, with Tim and Moby… And find out the big ways the red planet is different from our "blue marble." More...

Video
BrainPOP
Mars Facts

Mars Facts

The escape velocity for Mars is less than half what it is for Earth and even Venus. Find out why. More...

Article
NASA
Radioisotopes: Energy for Space Exploration

Radioisotopes: Energy for Space Exploration

Spaceships have been able to reach the outer planets and beyond, because they use heat from radioactive material to generate power. More...

Video
Department of Energy
Dry Ice “Snowboards” on Mars

Dry Ice “Snowboards” on Mars

Find out why new research about hunks of dry ice on Mars led one NASA planetary scientist to say, "Now I dream of snowboarding down a Martian sand dune on a block of dry ice." More...

Article
NASA
Exploration of Mars

Exploration of Mars

Before the U.S. landed the Curiosity rover on Mars, what other space explorations took place? Check out both the successful and failed missions. More...

Article
Smithsonian
Mars’ Ice Patchy, Water Cycle Quite Active, Study Reveals

Mars’ Ice Patchy, Water Cycle Quite Active, Study Reveals

Research on the underground ice of Mars suggests that the red planet has an active water cycle. Investigate how scientists made this discovery. More...

Article
National Geographic
Martian Topography: Image Gallery

Martian Topography: Image Gallery

More than 200 million measurements from MOLA (Mars Orbiter Laser Altimeter) were used to create topographic maps of Mars. View the Red Planet in a new and fascinating way. More...

Images
NASA
NASA Orbiter Observations Point to ‘Dry Ice’ Snowfall on Mars

NASA Orbiter Observations Point to ‘Dry Ice’ Snowfall on Mars

Rather than snow made of frozen water, the Red Planet has snowfalls of frozen carbon-dioxide, or dry ice. Take a look at the evidence from the Mars Reconnaissance Orbiter. More...

Article
NASA
Return to Mars

Return to Mars

What would it be like to roam around on Mars? Find out with these hands-on activities. More...

Interactive
Exploratorium
Scientist Profile: Mars Rover Engineer

Scientist Profile: Mars Rover Engineer

Dr. Ayanna Howard uses artificial intelligence (AI) to make robots "smarter" so they can travel into space and other hazardous locations. Take a look at her SmartNav robot, which is headed to Mars. More...

Profile
DragonflyTV/PBS
Why Is Mars Red?

Why Is Mars Red?

Why is Mars red? Because it’s rusty. We’re still not sure whether water was involved in making it that way though. More...

Article
Space.com
Curiosity Rover: Interactives

Curiosity Rover: Interactives

See how the parts of this rover are similar to what a human would need to explore Mars, then follow Curiosity's descent to Mars. More...

Interactive
NASA
Interactive Mars Habitat

Interactive Mars Habitat

What might the first colony on Mars look like? Find out with this awesome 3D interactive that lets you take a tour of a base design and working habitat. More...

Interactive
exploreMarsnow.org
Shield Volcanoes

Shield Volcanoes

One thing Earth and Mars have in common is shield volcanoes. Learn why these are not the most explosive type and what causes the shield-like shape to build up. Runny lava, anyone? More...

Article
BBC
Surface of Mars Possibly Shaped by Plate Tectonics in Recent Past

Surface of Mars Possibly Shaped by Plate Tectonics in Recent Past

The huge Martian volcano Olympus Mons shows evidence of recent tectonic thrusting — a surprise since most scientists think Mars is too small and its interior too cold for tectonic processes. More...

Article
Space.com
Curiosity Detects (But Can’t See!) Dust Devils on Mars

Curiosity Detects (But Can’t See!) Dust Devils on Mars

Searching the surface of Mars, NASA’s Rover Curiosity has traveled the planet picking up pressure that suggests the presence of dust devils. More...

Video
Space.com
Delving into Dust Devils

Delving into Dust Devils

Twisters of dust race across the Red Planet. But the mechanism of Martian dust devils is different from our Earthly variety. More...

Article
Space.com
Design a Mars  Parachute

Design a Mars Parachute

Find out how engineers created parachutes that can help a Mars Exploration Rover descend safely onto the Red Planet. Then build your own and test it out in a virtual wind tunnel. More...

Interactive
NOVA/PBS
Mars’ Moons

Mars’ Moons

Take a closer look at Phobos and Deimos, first spotted in 1877. Find out what we now know about these Martian moons thanks to NASA's Mariner 9 spacecraft. More...

Article
NASA
Space Kids

Space Kids

Meet six Jet Propulsion Lab (JLP) engineers who landed Curiosity on Mars and find out what ignited their passion for space. More...

Profile
NOVA/PBS

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