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NASA's Mars Reconnaissance Orbiter shows dark streaks flowing down Martian slopes. When the streaks are widest, there is evidence of water molecules. When the streaks shrink in the cold, water disappears. The water is not the same as a stream on Earth, but more like a hint of wetness. Although scientists are not entirely sure where the water source is, they say it could be from a salty underground reservoir or soaking up moisture from the atmosphere. Listen to hear how water can be important for future explorations on Mars.
Story Length: 2:01
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March 6, 2015
4:37
In 2024 crews of four will be sent to Mars with the goal of creating a permanent human settlement there. The mission is being planned by a non-profit organization in the Netherlands called Mars One. 200,000 people applied to be one of the first four people to make this all expense paid trip. Mars One has narrowed the applicants down to 100. Shirelle Webb, a 22 year old college student from Texas has made the cut. Listen to learn why she wants to be considered for the one-way trip.
Read MoreJanuary 6, 2015
1:54
NASA’s Curiosity Rover has found unexpected bursts of methane in the Martian atmosphere. Scientists don’t know where the methane is coming from but some see these bursts as evidence that there are or once were living microbes on the red planet. Listen to learn more about this important gas and the implications of its discovery on Mars.
Read MoreApril 3, 2014
8:15
The Hubble Telescope has been transmitting data from space for 24 years. It has endured several changes in U.S. Presidents and it will continue to stay in space until at least 2020. What have we learned from the Hubble Telescope over the last two decades?
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