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Sprouting in Orbit
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| Topic: Missions |
11/26/12 |
| Summary: Astronaut Don Pettit continues his diary from Expedition 31 on the international space station. In this installment he reports on the progress of plants being grown in the conditions of low Earth orbit. |
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Dinosaurs and the Evolution of Flight
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| Topic: Origin & Evolution of Life |
11/25/12 |
| Summary: A new study on feathers in bird-like dinosaurs is helping scientists understand how flight may have evolved on Earth. |
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Microbes that Fight Greenhouse Gases
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| Topic: Biosphere |
11/25/12 |
| Summary: Nitrous oxide is released into the atmosphere could cause more damage to Earth's environment than carbon dioxide. Luckily, a previously unknown army of microorganisms helps transform the nitrous oxide into harmless nitrogen gas. |
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Dwarf Planet MakeMake Lacks Atmosphere
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| Topic: Outer Solar System |
11/24/12 |
| Summary: New observations of the dwarf planet Makemake indicate that, unlike Pluto, the distant world does not have an atmosphere |
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Hunting Amino Acids
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| Topic: Origin & Evolution of Life |
11/24/12 |
| Summary: A new instrument could allow astrobiologists to study chirality, or "handedness," of amino acids on our solar system's icy moons, asteroids and Kuiper Belt objects. |
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A New Microbial Symbiosis Discovered
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| Topic: Origin & Evolution of Life |
11/23/12 |
| Summary: By accidentally impaling his hand on a tree branch, a 71-year-old man helped scientists discover a new bacterium and solve a mystery about how bacteria came to live inside insects. |
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Robot Could Explore Moon Caverns
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| Topic: Robotics & A.I. |
11/22/12 |
| Summary: A robot that has been exploring a coal mine pit in Pennsylvania could be rappelling into holes on the Moon in the future. |
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Do Aliens Use Hairspray?
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| Topic: Alien Life |
11/22/12 |
| Summary: Chemicals such as those found in hairspray might one day serve as signs that aliens have reshaped distant worlds, researchers say. |
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The Lazarus Effect
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| Topic: Origin & Evolution of Life |
11/21/12 |
| Summary: Researchers have solved an age-old riddle surrounding the evolutionary relationships of a much-debated fossil mammal. The findings also show that the family of mammals represented by the fossil survived the extinction event that marks the end of the Age of Dinosaurs. |
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