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Unsettled Youth
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| Topic: Cosmic Evolution |
11/07/09 |
| Summary: NASA's Spitzer Space Telescope has discovered a young star where young planets jostle about like unsettled children. The system may be similar to our own solar system before our planets settled into their familiar orbits. |
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Think Global, Act Local
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| Topic: Climate |
11/06/09 |
| Summary: Recently, Astrobiology Magazine's climate blog, The Hot Zone, spoke with Dr. Anastasia Romanou, Associate Research Scientist at NASA GISS, about the need for precise local measurements of climate phenomena. Local measurements can provide information about the real impacts of climate change. |
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Starring Intelligent Aliens
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| Topic: Alien Life |
11/05/09 |
| Summary: The most probable place to find intelligent life in the galaxy is around stars very similar to our sun, a new study has found. |
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Mercury Rising
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| Topic: Mercury |
11/04/09 |
| Summary: On its final flyby of Mercury, NASA's Messenger spacecraft has captured images of never before seen regions of the planet. Messenger is providing new scientific findings about the closest planet to the sun, and teaching astrobiologists about how rocky planets form and evolve. |
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Primitive Particles
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| Topic: Meteorites, Comets and Asteroids |
11/03/09 |
| Summary: Scientists have discovered 'ultra-primitive' material in stratospheric dust samples collected by high-flying aircraft. The material likely wafted into the atmosphere of Earth as our planet passed through the tail of a comet, and could help scientists understand the early solar system and the role that comets may have played in life's origins. |
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Fantastic Voyage
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| Topic: Missions |
11/02/09 |
| Summary: By travelling to the outer solar system, the two Voyager spacecraft allowed us to see amazing details of far-distant planets and moons. |
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A New Wrinkle in Ancient Ocean Chemistry
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| Topic: Climate |
11/01/09 |
| Summary: Scientists widely accept that the Earth's atmosphere underwent a dramatic rise in oxygen 2.4 billion years ago, which ultimately paved the way for complex life on our planet. New research has helped solve some important questions surrounding this 'Great Oxidation Event'. |
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Robot Armada Could Explore Alien Worlds
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| Topic: Robotics & A.I. |
10/31/09 |
| Summary: Some scientists believe that we are on the brink of big changes in planetary exploration. Future robotic explorers might be nothing like what we see today, and the new technologies could have benefits for astrobiologists. |
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Fish – It's What's for Dinner
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| Topic: Climate |
10/30/09 |
| Summary: The oceans of Earth play an essential role in making our planet habitable for life as we know it. The future of our oceans, however, may be in jeopardy. Recently, Astrobiology Magazine's climate blog, The Hot Zone, discussed how anoxic waters may affect the biosphere in years to come. |
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Life's Ancient Island in the Ice
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| Topic: Biosphere |
10/29/09 |
| Summary: During the last ice age, massive glaciers covered much of our planet. However, a region of Alaska, Siberia and the Canadian Yukon remained ice-free. This region, known as Beringia, supported unique organisms and was an important haven for evolution. Now, scientists may have uncovered how Beringia supported such diversity at a time when conditions for life were harsh. |
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