Quantcast
Last updated on April 20, 2014 at 17:20 EDT

Latest Planetary habitability Stories

6ed0483544c45d720df2fbcd486ea9a01
2007-04-25 17:20:00

GENEVA -- Swiss scientist Michel Mayor, who heads the European team that announced the discovery of a new potentially habitable planet, has his sights set on an even bigger target -- detecting signs of extraterrestrial life. Mayor predicts that top researchers are less than two decades away from being able to detect real signs of such life - if it exists. "There's only one thing we can do. We can do science, we can do experiments. We have the methodology, the ability to do this simply on...

dea4309a9a3712c58038d2343f8bb2701
2007-04-11 10:15:00

NASA scientists believe they have found a way to predict the color of plants on planets in other solar systems. Green, yellow or even red-dominant plants may live on extra-solar planets, according to scientists whose two scientific papers appear in the March issue of the journal, Astrobiology. The scientists studied light absorbed and reflected by organisms on Earth, and determined that if astronomers were to look at the light given off by planets circling distant stars, they might predict...

0640bf70f5c2dec7599ea0a5839f07611
2007-01-15 10:50:00

A recent study found 20 new star systems in the sun's local neighborhood. Most of the new discoveries are red dwarfs, much smaller and dimmer than the sun. Yet scientists are growing more confident that these stars could host habitable planets. NASA - Ancient astronomers logically focused their efforts on the brightest stars, the ones they could see in the night sky. Many modern astronomers, aided by ever-more-sensitive telescopes, have investigated objects that are unimaginably distant and...

ce50f248c8da69accc0d017deffd299a1
2006-09-11 12:20:00

More than one-third of the giant planet systems recently detected outside our solar system may harbor Earth-like planets covered in deep global oceans that offer abundant potential for life, according to a new study by scientists associated with NASA's Astrobiology Institute. The study focuses on planetary systems that contain "Hot Jupiters": gas giant planets that orbit extremely close to their parent stars -- even closer than Mercury to our own sun. Hot Jupiters are believed to have...

2006-02-21 07:37:41

AAAS -- In the search for life on other worlds, scientists can listen for radio transmissions from stellar neighborhoods where intelligent civilizations might lurk or they can try to actually spot planets like our own in habitable zones around nearby stars. Either approach is tricky and relies on choosing the right targets for scrutiny out of the many thousands of nearby stars in our galactic neighborhood. Margaret Turnbull, an astronomer at the Carnegie Institution of Washington, has...

2006-02-19 00:10:00

By Maggie Fox, Health and Science Correspondent ST. LOUIS -- Astronomers looking for extraterrestrial life now have a short list of places to point their telescopes. They include nearby stars of the right size, age and composition to have Earth-like planets circling them, scientists said on Saturday. But cuts in federal funding mean that private philanthropists who pay for the bulk of their work may find out first when and if extraterrestrial life is discovered, the astronomers told a meeting...

5c8b3b4d160a6efcf063f158a9c9b65b1
2006-01-30 09:25:00

Cambridge, MA -- Common wisdom among astronomers holds that most star systems in the Milky Way are multiple, consisting of two or more stars in orbit around each other. Common wisdom is wrong. A new study by Charles Lada of the Harvard-Smithsonian Center for Astrophysics (CfA) demonstrates that most star systems are made up of single stars. Since planets probably are easier to form around single stars, planets also may be more common than previously suspected. Astronomers have long known...

2005-11-17 18:40:00

By Maggie Fox, Health and Science Correspondent WASHINGTON -- Tiny zircon crystals dug up from ancient Australian deposits appear to have been formed right after the birth of the planet -- a finding that suggests that early on, Earth had a cool crust much like today's that could have harbored life, scientists said on Thursday. Most remnants of the very early crust, formed more than 4 billion years ago, are gone -- recycled as part of the steady ongoing process known as plate tectonics. But...

2005-11-17 17:23:10

A surprising new study by an international team of researchers has concluded Earth's continents most likely were in place soon after the planet was formed, overturning a long-held theory that the early planet was either moon-like or dominated by oceans. The team came to the conclusion following an analysis of a rare metal element known as hafnium in ancient minerals from the Jack Hills in Western Australia, thought to be among the oldest rocks on Earth. Hafnium is found in association with...

4a7c26df90a68be32e84f398313a52f41
2005-11-17 07:25:00

More than half the stars in our galaxy are small, dim M dwarfs. Until recently, scientists believed these stars put out too little light to support life on any planets that orbited them. But at a recent workshop held at the SETI Institute, a multidisciplinary group of researchers concluded not only that M dwarfs might host habitable planets, but that they might also be good targets in the search for extraterrestrial intelligence. Astrobiology Magazine -- Scientists have been searching...


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...

More Articles (1 articles) »