nov 262013
 
Which Ancient Minerals Gave Rise to Life?

  Life originated as a result of natural processes that exploited early Earth’s raw materials. Scientific models of life’s origins almost always look to minerals for such essential tasks as the synthesis of life’s molecular building blocks or the supply of metabolic energy. But this assumes that the mineral species found on Earth today are [continue reading]

aug 292013
 
Are We All Martians?

  New research supports theory that life started on Mars   New evidence has emerged which supports the long-debated theory that life on Earth may have started on Mars. Professor Steven Benner will tell geochemists gathering today (Thursday 29 Aug) at the annual Goldschmidt Conference that an oxidized mineral form of the element molybdenum, which may have [continue reading]

jul 312013
 
Cracking How Life Arose on Earth May Help Clarify Where Else It Might Exist

  A unique theory about how life arose on Earth may reveal clues to whether and where else it might have arisen in the Universe. This artist’s conception shows a young, hypothetical planet around a cool star. Image Credit: NASA Does life exist elsewhere or is our planet unique, making us truly alone in the Universe?  Much [continue reading]

jul 112013
 
How the Early Earth Kept Warm Enough to Support Life

  Solving the “faint young Sun paradox” — explaining how the early Earth was warm and habitable for life beginning more than 3 billion years ago even though the Sun was 20 percent dimmer than today — may not be as difficult as believed, says a new University of Colorado Boulder study. An artist’s conception [continue reading]

apr 062013
 
The Power Behind Primordial Soup Discovered

  Researchers at the University of Leeds may have solved a key puzzle about how objects from space could have kindled life on Earth. An artists impression of a meteorite landing in a hot, acidic pool of liquids. Image Credit: James McKay 2013 (www.jamesmckay.info) While it is generally accepted that some important ingredients for life came from [continue reading]

nov 022012
 
Asteroid Belts at the Right Place Needed for Complex Life?

  Solar systems with life-bearing planets may be rare if they are dependent on the presence of asteroid belts of just the right mass, according to a study by Rebecca Martin, a NASA Sagan Fellow from the University of Colorado in Boulder, and astronomer Mario Livio of the Space Telescope Science Institute in Baltimore, Md.  [continue reading]