News tagged with terrestrial life
Earth siblings can be different: Chemical clues on the formation of planetary systems
An international team of researchers, with the participation of IAC astronomers, has discovered that the chemical structure of Earth-like planets can be very different from the bulk composition of the Earth. ...
Feb 23, 2012 |
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Life possible on 'large parts' of Mars: study
Australian scientists who modelled conditions on Mars to examine how much of the red planet was habitable said that "large regions" could sustain life.
Space & Earth / Space Exploration
Dec 12, 2011 |
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Researchers pinpoint date and rate of Earth's most extreme extinction
It's well known that Earth's most severe mass extinction occurred about 250 million years ago. What's not well known is the specific time when the extinctions occurred. A team of researchers from North America ...
Space & Earth / Earth Sciences
Nov 17, 2011 |
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Meteorite holds clues to organic chemistry of the early Earth: study
(PhysOrg.com) -- Carbonaceous chondrites are a type of organic-rich meteorite that contain samples of the materials that took part in the creation of our planets nearly 4.6 billion years ago, including materials ...
Space & Earth / Space Exploration
Jun 09, 2011 |
4.7 / 5 (6) |
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Musical chairs around the periodic table
Life on Earth is composed of a handful of essential elements from the periodic table. Recently, one group of researchers claimed that this ingredient list should be expanded, having found a bacteria that presumably ...
Space & Earth / Space Exploration
Feb 17, 2011 |
4.8 / 5 (5) |
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Report casts world's rivers in 'crisis state'
(PhysOrg.com) -- The world's rivers, the single largest renewable water resource for humans and a crucible of aquatic biodiversity, are in a crisis of ominous proportions, according to a new global analysis.
Sep 29, 2010 |
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Probing Question: What is a Near Earth?
In the 1997 movie "Contact" (based on the novel by Carl Sagan), actress Jodie Foster plays an astrophysicist devoted to SETI -- the Search for Extra-Terrestrial Intelligence. Despite doubting colleagues, she ...
Sep 27, 2010 |
3.6 / 5 (10) |
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Uninhabited water: Where no microbe has gone before
(PhysOrg.com) -- NASA's 'follow the water' strategy to find life on other planets might need rethinking, according to Australian National University research describing the amount of water on Earth that doesn't ...
Space & Earth / Earth Sciences
May 13, 2010 |
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Earth microbes may contaminate the search for life on Mars
Bacteria common to spacecraft may be able to survive the harsh environs of Mars long enough to inadvertently contaminate Mars with terrestrial life according to research published in the April 2010 issue of ...
Space & Earth / Space Exploration
Apr 27, 2010 |
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Professor: We have a 'moral obligation' to seed universe with life
(PhysOrg.com) -- Eventually, the day will come when life on Earth ends. Whether that’s tomorrow or five billion years from now, whether by nuclear war, climate change, or the Sun burning up its fuel, the last ...
Feb 09, 2010 |
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Law of probabilities backs hopes for E.T., conference hears
The law of probabilities backs theories that we are not alone in the Universe, although an encounter with an advanced civilisation may shock our species, scientists at a conference said here on Monday.
Space & Earth / Space Exploration
Jan 25, 2010 |
4.1 / 5 (17) |
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Seeking Life's Shadow
They haven't yet figured out how to draw blood from stones, but a group of French researchers is offering new insight that could change how scientists search for signs of life in Martian rocks.
Space & Earth / Space Exploration
Oct 01, 2009 |
4.7 / 5 (3) |
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Why leave it to nature? Chemistry professor wants to understand, simplify, photosynthesis
(PhysOrg.com) -- Amid calls for transformative change in the world’s energy supply, Harvard chemist Ted Betley is taking a back-to-basics approach and examining the mother of all energy supplies -- photosynthesis ...
Sep 30, 2009 |
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