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  • Illustration concentric circles with the Sun in the center and then Earth and Mars. Caption: In orbit, Mars is about 50 million miles farther away

    Mars is actually cold. Mars is about 50 million miles farther away from the Sun than Earth. That means it gets a lot less light and heat to keep it warm. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • Illustration of people in ancient Egyptian dress pointing over pyramids into the night sky. Caption: Even the ancient Egyptians called Mars "The Red One."

    Mars definitely has a reddish tint, and even the ancient Egyptians called Mars “The Red One.” Where does the redness come from? The rocks on Mars are full of iron, and the dust from those rocks swirls around the atmosphere, which makes the planet appear red. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • Illustration of the Sun, Earth, and Mars. Caption: the planets are in perfect positions to get to Mars

    What does it take to get a spacecraft to Mars? Scientists cover a few key things to remember when planning a trip to the Red Planet. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • How do you land on Mars? Caption: Very carefully.

    How does a spacecraft land on Mars as it hurtles towards the planet at thousands of miles per hour? It needs a heat shield to protect it from the friction of entry into the atmosphere. The spacecraft will also need a parachute to help slow down its descent. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • A photo of the Mars surface shows ridges with steep slopes on both sides.

    Tour three Martian landscapes and find out how erosion and water has affected the surface of Mars. Flyover images show the structure and composition of the landscape of Mars and focus on Candor Chasma, part of a canyon system of Mars.

    (Source: DCMP)

  • A cube shaped space craft on a tripod of legs and four rotor-like wings on top sitting on the surface of a barren planet. Caption:  5 Survive Mars Environment. "And it has to survive the harsh environment of Mars."

    NASA engineers are looking for new ways to explore Mars. They are working with a small helicopter that could help scout trails for future explorations into space. Part of the “Crazy Engineering” series.

    (Source: DCMP)

  • Earth and Mars passing each other in space. Caption: Mars and the Earth had been passing each other

    Mars is the planet in our solar system most similar to Earth. Rumors of life on it may be substantiated as NASA orbiters and rovers discover new evidence of frozen water just beneath the rusty soil. Did alien life exist there? As Earth reels with the effects of global warming, Mars becomes the most likely candidate for eventual human habitation. Cutting-edge computer graphics are used to show what life would be like on Mars, and to imagine what kind of life forms might evolve in alien atmospheres.

    (Source: DCMP)

  • Illustration of the planets in our solar system. Caption: Mars is more like Earth than any other planet.

    Examines the similarities and differences between Mars and Earth. Comments on the size, color, atmosphere, and temperature of Mars. Includes footage from recent missions to Mars and speculates on possible manned space flights to the Red Planet.

    (Source: DCMP)

  • Diagram of the atmosphere above a planet's surface. A ship passes through the atmosphere at 13,000 mph and deposits a rover at 0 mph. Caption: we have to slow down from 13,000 miles an hour to zero.

    Landing a spacecraft on a distant planet is the most difficult part of a mission. Scientists use animation to show how difficult it is to land on Mars. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • Illustration of Mars in space. Caption: (narrator) How could life have first formed on Mars?

    In the last few years, the Red Planet has yielded up many new clues that life may have once existed there...and may even exist there today. There is now proof that water once flowed on the surface, that Mars once had lakes, and that the frozen poles are mostly water. Mars has snow--an aurora--and lightning generated by dust storms. Most intriguing of all are the seasonal plumes of methane that just may point to bacteria living below the surface.

    (Source: DCMP)

  • An illustration depicts migration from Earth to Mars.

    The Red Planet, with the most similar environment to Earth in the entire solar system, is a third alternative being explored for colonization. The discovery of ice on its surface has excited and encouraged many space scientists despite the many challenges to establishing a colony on Mars. Part of the "Space Colonies" series.

    (Source: DCMP)

  • Illustration of a split screen showing a robot with wheels on the surface of a red planet and people at a computer. Caption: engineers send computer commands overnight,

    Before a rover starts exploring a new planet, engineers send computer commands telling it where to go. They can send a string of specific commands, or they can let the rover think on its own. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • Illustration concentric circles with the Sun in the center and then Earth and Mars. Caption: Earth and Mars wind up on opposite sides of the sun.

    About every two years, Earth and Mars wind up on opposite sides of the sun, which can block the signals sent by the rover. During this solar conjunction, scientists must ensure they do not lose any of the data being sent by “Curiosity.” Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • Spatial view of a crater on the moon. Caption: then we head straight down to the bottom of a crater,

    Team members at NASA's Jet Propulsion Laboratory share the challenges faced during the final minutes before “Curiosity” landed on the surface of Mars. “Curiosity” is a car-sized robotic rover exploring Gale Crater on Mars as part of NASA’s Mars Science Laboratory mission (MSL).

    (Source: DCMP)

  • Small round space craft descending towards a red planet. Caption: so that we can go there and stay there to live.

    How do you plot a course to Mars, from one moving planet to another? What are the impacts of space travel on the body and can human beings survive the trip? Looks at the plans for a flight to the Red Planet.

    (Source: DCMP)

  • Planet Mars. Caption: negative 63 degrees Celsius and negative 81 degrees Fahrenheit. Source, NASA.

    In this episode, host Dianna Cowern interviews planetary geologist Raquel Nuno. They discuss the reasons why Mars is inhabitable for humans. Part of the "Physics Girl" series.

    (Source: DCMP)

  • Illustration of a robot with wheels on the surface of a reddish-brown planet. Caption: If Curiosity finds organics, it wouldn't prove life existed,

    Organics are carbon-based molecules and key ingredients to life. Scientists want to know if organics can be found on Mars. However, finding organics is difficult because they easily break down when exposed to harsh things like extreme radiation and chemical oxidants. These broken down particles give the Martian surface its rusty color. Part of the “Mars in a Minute” series.

    (Source: DCMP)

  • Crabs, various grasses, snails, and broken shells. Caption: The marsh can be a rough place for plants to live.

    Dr. Randall Hughes is interested in what makes a salt marsh less susceptible to disturbances, such as drought. She looks at species diversity to determine what combinations of plants and animals make for a more productive ecosystem. Part of the series "In The Grass, On The Reef."

    (Source: DCMP)

  • Person holding a small crab. Caption: could wreak so much havoc in the marshes of Cape Cod?

    A quick glance at the marsh next to Saquatucket Harbor in Harwich Port, Massachusetts, reveals right away that some of the grass is missing. The cordgrass there, and all around Cape Cod, has been slowly disappearing for decades. Marine ecologist Mark Bertness of Brown University studies this critical ecosystem, which protects our coastal environment by nurturing a complex web of plants and animals, filtering nutrients, and serving as a critical storm barrier. Bertness says the marshes are being overrun by purple marsh crabs because their main predators, blue crab and finfish, are being overfished. So, the purple marsh crabs are free to gorge on healthy fields of cordgrass and once done feeding, they leave behind nothing but lumpy fields of mud.

    (Source: DCMP)

  • Person standing in ankle deep water and grass holding a clipboard leans down and reaches into the water. Caption: She is researching coastal salt marshes.

    The salt marshes along Florida’s Gulf Coast provide a variety of ecosystem services and are economically important, but in decline. Dr. Hughes studies these marshes in hopes of finding a way to slow their decline and preserve these services. Part of the series "In The Grass, On The Reef."

    (Source: DCMP)

Collections

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  • Biology

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    • Text Document
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    • 2.5D Tactile Graphic
    • 3D Model
    • Audio File

    Biology related concepts

    A collection containing 59 resources, curated by Benetech

  • Vision

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    • Text Document
    • PDF
    • 2.5D Tactile Graphic
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    Resources related to vision

    A collection containing 12 resources, curated by Charles LaPierre