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Latest Mars Ocean Hypothesis Stories

Martian Meteorites Offer Evidence Of Early Atmosphere On Red Planet
2014-04-17 06:47:34

Lawrence LeBlond for redOrbit.com - Your Universe Online Martian meteorites that fell to Earth are revealing secrets of an early atmosphere on Mars that is hidden in the chemical signatures of each ancient rock. Geologists, who collected and studied 40 of these otherworldly rocks, have found an important key to how the atmospheres of Mars and Earth diverged very early in the evolution of the Solar System. The results of this study, published in the journal Nature, will help guide...

Martian Atmosphere May Have Experienced Greenhouse Conditions In Ancient Times
2013-11-25 03:46:52

[ Watch the Video: Was A Greenhouse Gas Effect Responsible For Ancient Water On Mars? ] redOrbit Staff & Wire Reports - Your Universe Online The combination of molecular hydrogen, carbon dioxide and water could have created a greenhouse effect on Mars nearly four billion years ago, raising temperatures to the point that liquid water could exist, according to research appearing in the latest edition of the journal Nature Geoscience. That could help explain Nanedi Valles,...

Image 1 - Researchers Take Temperature Of Mars's Past
2011-10-13 04:19:02

Researchers at the California Institute of Technology (Caltech) have directly determined the surface temperature of early Mars for the first time, providing evidence that's consistent with a warmer and wetter Martian past. By analyzing carbonate minerals in a four-billion-year-old meteorite that originated near the surface of Mars, the scientists determined that the minerals formed at about 18 degrees Celsius (64 degrees Fahrenheit). "The thing that's really cool is that 18 degrees is not...

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2011-04-22 06:05:00

New research shows that hostile conditions on Mars were much worse 600,000 years ago than they are today, with evidence suggesting the red planet once had a much dustier, stormier atmosphere. NASA's Mars Reconnaissance Orbiter (MRO) discovered that the total amount of atmosphere on Mars changes significantly as the tilt of the planet's axis varies.  The process can affect the stability of liquid water -- if it exists on the surface "“ and can also increase the frequency and...

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2011-03-08 14:13:35

Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be. At several places where cratering has exposed material from depths of about 5 kilometers (3 miles) or more beneath the surface, observations by a mineral-mapping instrument on NASA's Mars Reconnaissance Orbiter indicate carbonate minerals. These are not the first detections of carbonates on Mars. However, compared to...

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2009-05-20 14:55:00

Researchers have long debated the prospect of finding water on Mars, but a new report from researchers in Spain shows that the Red Planet could have been frozen while still maintaining a habitat for liquid water flows at one point in its history. Some researchers argue that early Mars could not have contained water because its temperatures would have been well below the freezing point for water to exist. Researcher Alberto Fairen of NASA Ames Research Center and colleagues used computer...

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2007-12-25 08:39:46

How Mars could have been warm and wet but limestone free CAMBRIDGE, Mass. -- Planetary scientists have puzzled for years over an apparent contradiction on Mars. Abundant evidence points to an early warm, wet climate on the red planet, but there's no sign of the widespread carbonate rocks, such as limestone, that should have formed in such a climate. Now, a detailed analysis in the Dec. 21 issue of Science by MIT's Maria T. Zuber and Itay Halevy and Daniel P. Schrag of Harvard University...

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2007-07-23 09:50:36

Thermodynamic studies of Martian clay soils suggest inconsistencies in theories of a thick carbon dioxide atmosphere, says a study in Nature. FAYETTEVILLE, Ark. - A study of the thermodynamics of clays found on Mars suggests that little carbon dioxide could have been present during their formation, which contradicts a popular theory of the early Martian atmosphere and will send researchers looking for other explanations for clay formation. Vincent Chevrier of the University of Arkansas and...


Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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