Carlos I. El astronauta Noriega saluda enfrente a la Tierra, con la estacion espacial en primer plano

Learn about spacewalks with NASA’s first Hispanic astronaut, Franklin Chang-Díaz.

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El astronauta Michael Lopez-Alegria en la mision STS-113

Learn about spacesuits with NASA astronaut Michael López-Alegría, the U.S. record holder for the most spacewalks!

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Looking Into the Past

Vision artistica del Telescopio Espacial James Webb

NASA will use the James Webb Space Telescope to look at the light from stars formed in the early universe.

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    The universe is full of harmful radiation. Astronauts who live and work in space are exposed not only to ultraviolet rays but also to space radiation.
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Background Information

    What Would You Hear in a Weather Report From Mars?

    What is today’s high temperature? Is the sky mostly cloudy? Is there a chance of rain? Most of us listen to weather reports to help us decide what to wear and how to plan our day. Is lots of sun in the forecast? Don’t forget to wear sunscreen. Too much exposure to ultraviolet rays from the sun can lead to sunburn. We’re lucky here on Earth. Earth’s atmosphere contains a layer of ozone that prevents most of the ultraviolet rays from reaching us.

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Opportunities and Activities

  • Vision artistica del Mars Science Laboratory

    Send Your Name to Mars  →

    This is your chance to go to Mars! Fill in your information, and your name will be included with others on a microchip on the Mars Science Laboratory rover heading to Mars in 2011!