All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way?
Cell & Microbiology
Aug 19, 2011
9
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Meteorites hold a record of the chemicals that existed in the early Solar System and that may have been a crucial source of the organic compounds that gave rise to life on Earth. Since the 1960s, scientists have been trying ...
Space Exploration
Aug 8, 2011
3
2
A chance discovery of a genetic mutation in wild barley that grows in Israel's Judean Desert, in the course of a doctoral study at the University of Haifa, has led to an international study deciphering evolution of life on ...
Biotechnology
Jul 25, 2011
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(AP) -- An expected fight over teaching evolution in Texas classrooms fizzled Thursday when the state's Board of Education gave preliminary approval to supplemental science materials for the coming school year and beyond ...
Other
Jul 22, 2011
1
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The plot has the makings of a summer blockbuster: An asteroid on a potential collision course with our planet holds the power to destroy life on Earth but also holds clues to what seeded it with the ingredients for life. ...
Space Exploration
Jul 18, 2011
1
0
Lobsters without shells and a small shark that bulks up with water to scare off predators are among hundreds of potential new species found in the Philippines, according to a US-led biodiversity survey.
Plants & Animals
Jun 30, 2011
0
0
Any sulfurous molecules that astronomers spot on alien worlds might be a way to reveal whether or not those distant planets host life, researchers suggest.
Astronomy
Jun 30, 2011
17
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Ground-level ozone is an air pollutant that harms humans and plants. Both climate and weather play a major role in ozone damage to plants. Researchers at the University of Gothenburg, Sweden, have now shown that climate change ...
Earth Sciences
Jun 30, 2011
0
0
This spring, scientists from the California Academy of Sciences braved leeches, lionfish, whip-scorpions and a wide variety of other biting and stinging creatures to lead the most comprehensive scientific survey effort ever ...
Plants & Animals
Jun 24, 2011
3
0
(PhysOrg.com) -- A team of scientists led by Montana State University has discovered the "when" of a major event that led to the evolution of complex life on Earth.
Earth Sciences
Jun 21, 2011
1
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