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Latest Planetary habitability Stories

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2005-10-19 07:03:44

Astrobiology Magazine -- With this essay by Steven Soter, Astrobiology Magazine presents the first in our series of 'Gedanken', or thought, experiments - musings by noted scientists on scientific mysteries in a series of "what if" scenarios. Gedanken experiments, which have been used for hundreds of years by scientists and philosophers to ponder thorny problems, rely on the power of one's imagination to project these scenarios to logical conclusions. They do not involve lab equipment or,...

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2005-08-29 13:25:54

M-dwarf stars, much smaller, dimmer and cooler than stars like our sun, are by far the most common type of star in our galaxy. Yet scientists searching for life on other worlds have not shown much interest in M dwarfs. That's about to change. Astrobiology Magazine -- When you look up at the night sky, none of the stars you see are M dwarfs. These diminutive stars, much smaller and dimmer than our own sun aren't bright enough to see with the naked eye. Yet M dwarfs (also known as red dwarfs)...

2005-06-20 23:07:41

Recent research argues that an atmosphere rich in oxygen is the most likely source of energy for complex life to exist anywhere in the Universe, thereby limiting the number of places life may exist. Professor David Catling at Bristol University, along with colleagues at the University of Washington and NASA, contend that significant oxygen in the air and oceans is essential for the evolution of multicellular organisms, and that on Earth the time required for oxygen levels to reach a point...

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2005-05-04 07:50:00

Bernard Foing, Chief Scientist for the European Space Agency, provides on overview of the most notable discoveries made during the Mars Express mission, Europe's first trip to the Red Planet. In part two of this overview, Foing looks at how these discoveries could help pinpoint the prospects for life on Mars. Astrobiology Magazine -- The European Space Agency's Mars Express spacecraft has been orbiting Mars for over a year. While the high resolution images of the planet's many craters,...

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2005-04-28 07:25:00

Looking for biosignatures that would be characteristic of intelligent life is not always about extrapolating the most intelligent things a species might be doing. For instance, would one look for pollutants in the atmosphere? Carnegie Institutions' Maggie Turnbull answers that and other questions from colleagues following her lecture, "Remote Sensing of Life and Habitable Worlds". Astrobiology Magazine -- Maggie Turnbull, an astronomer with the Carnegie Institution, has spent many years...

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2005-04-21 12:09:54

Of the 500 scientifically interesting stars within 30 light-years, how many habitable zones will astronomers be able to image? If there's a planet in those habitable zones, how detectable will that planet be? Carnegie's Maggie Turnbull presented a talk, "Remote Sensing of Life and Habitable Worlds: Habstars, Earthshine and TPF," at a NASA Forum for Astrobiology Research on March 14, 2005. This edited transcript of the lecture is part three of a four-part series. Astrobiology Magazine -- From...

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2005-04-20 11:55:00

Maggie Turnbull, an astronomer with the Carnegie Institution, has spent many years thinking about what kind of stars could harbor Earth-like planets. Her database of potentially habitable star systems could be used as a target list for NASA's forthcoming Terrestrial Planet Finder (TPF) mission. Turnbull presented a talk, "Remote Sensing of Life and Habitable Worlds: Habstars, Earthshine and TPF," at a NASA Forum for Astrobiology Research on March 14, 2005. This edited transcript of the...

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2005-04-12 07:25:00

Astrobiology Magazine -- Maggie Turnbull, an astronomer with the Carnegie Institution, has spent many years thinking about what kind of stars could harbor Earth-like planets. Her database of potentially habitable star systems could be used as a target list for NASA's upcoming Terrestrial Planet Finder (TPF) mission. Turnbull presented a talk, "Remote Sensing of Life and Habitable Worlds: Habstars, Earthshine and TPF," at a NASA Forum for Astrobiology Research on March 14, 2005. This edited...

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2005-01-11 07:35:00

Astronomer Royal, Sir Martin Rees describes how for the first time, humans as a species may start to change in observable ways within single lifetimes and under some loose control of our own influence. If this future plays out, the future itself becomes more difficult to forecast. Interview with Sir Martin Rees, Part 3. Astrobiology Magazine -- Britain's Astronomer Royal, Martin Rees , took time from his busy schedule to talk with Astrobiology Magazine's Chief Editor and Executive Producer,...

2003-02-06 06:00:00

By: Astrobiology News staff writer NASA Astrobiology Institute -- When the crescent moon is just a sliver each month, the phrase--'old moon in the young moon's arms'-- poetically describes a marvel of nature. When the crescent moon is just a sliver each month, the phrase--'old moon in the young moon's arms'-- poetically describes a marvel of nature. This marvel shows the shadow of the Earth reflecting back the largely blue light from the Earth, known as earthshine. As recently presented...


Latest Planetary habitability Reference Libraries

Planetary Astronomy
2014-01-12 00:00:00

Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...

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