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News tagged with life

Organic carbon from Mars, but not biological

(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...

Space & Earth / Space Exploration

created May 24, 2012 | popularity 4.4 / 5 (5) | comments 2 | with audio podcast

Hacking code of leaf vein architecture solves mysteries, allows predictions of past climate

(Phys.org) -- UCLA life scientists have discovered new laws that determine the construction of leaf vein systems as leaves grow and evolve. These easy-to-apply mathematical rules can now be used to better ...

Biology / Plants & Animals

created May 23, 2012 | popularity 4 / 5 (11) | comments 2 | with audio podcast

Spitzer sees the light of alien 'super earth'

(Phys.org) -- NASA's Spitzer Space Telescope has detected light emanating from a "super-Earth" planet beyond our solar system for the first time. While the planet is not habitable, the detection is a historic ...

Space & Earth / Astronomy

created May 08, 2012 | popularity 4.7 / 5 (18) | comments 16 | with audio podcast

Organic compounds found in proto-planetary disks

(PhysOrg.com) -- A new study from scientists in the US has reported that organic compounds could be formed in proto-planetary disks, and could have seeded the development of life in our own and other planetary ...

Space & Earth / Astronomy

created Mar 30, 2012 | popularity 5 / 5 (7) | comments 0 | with audio podcast report

Oldest organism with skeleton discovered in Australia

A team of paleontologists has discovered the oldest animal with a skeleton. Called Coronacollina acula, the organism is between 560 million and 550 million years old, which places it in the Ediacaran period ...

Other Sciences / Archaeology & Fossils

created Mar 08, 2012 | popularity 4.5 / 5 (32) | comments 23 | with audio podcast

How to rediscover life on Earth by looking at the Moon

(PhysOrg.com) -- By observing the Moon using ESO's Very Large Telescope, astronomers have found evidence of life in the universe -- on Earth. Finding life on our home planet may sound like a trivial observation, ...

Space & Earth / Astronomy

created Feb 29, 2012 | popularity 4.1 / 5 (11) | comments 0 | with audio podcast

DNA nanorobot triggers targeted therapeutic responses

Researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University have developed a robotic device made from DNA that could potentially seek out specific cell targets within a complex ...

Nanotechnology / Bio & Medicine

created Feb 16, 2012 | popularity 5 / 5 (9) | comments 8 | with audio podcast

New strategy directly activates cellular 'death protein'

Researchers at Dana-Farber/Children's Hospital Cancer Center have devised a strategy to directly activate a natural "death" protein, triggering the self-destruction of cells. They say the development could represent a new ...

Chemistry / Biochemistry

created May 31, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

UCLA life scientists view biodiversity through a whole new dimension

(Phys.org) -- How can blue whales, the largest animals on the planet, survive by feeding on krill, shrimp-like creatures that are the size of a penny? According to UCLA life scientists, it's all a matter of ...

Biology / Plants & Animals

created May 31, 2012 | popularity 5 / 5 (4) | comments 1 | with audio podcast

10 million years needed to recover from mass extinction

(Phys.org) -- It took some 10 million years for Earth to recover from the greatest mass extinction of all time, latest research has revealed.

Space & Earth / Earth Sciences

created May 27, 2012 | popularity 4.4 / 5 (8) | comments 21 | with audio podcast

Gourmet butterflies speed north: study

A new study led by scientists in the Department of Biology at the University of York has shown how a butterfly has changed its diet, and consequently has sped northwards in response to climate change. Their study is published ...

Biology / Ecology

created May 24, 2012 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Famed US alien seeker shifts gaze back to Earth

After decades spent scanning the heavens for signs of life elsewhere in the cosmos, astronomer Jill Tarter is stepping back, and letting a colleague take charge of the quest.

Space & Earth / Space Exploration

created May 22, 2012 | popularity 5 / 5 (4) | comments 13

Economic growth in China has not meant greater life satisfaction for Chinese people: long-term study

Despite an unprecedented rate of economic growth, Chinese people are less happy overall than they were two decades ago, reveals timely new research from economist Richard Easterlin, one of the founders of the field of "happiness ...

Other Sciences / Social Sciences

created May 14, 2012 | popularity 4 / 5 (4) | comments 8 | with audio podcast

New bacterium forms intracellular minerals

A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism. Published in Science on Apr ...

Biology / Cell & Microbiology

created May 11, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Is a new form of life really so alien?

The idea of discovering a new form of life has not only excited astronomers and astrobiologists for decades, but also the wider public. The notion that we are the only example of a successful life form in the galaxy has, ...

Biology / Other

created May 08, 2012 | popularity 3.6 / 5 (12) | comments 34 | with audio podcast

Life

Life on Earth:

Life (cf. biota) is a characteristic that distinguishes objects that have self-sustaining biological processes ("alive," "living"), from those which do not —either because such functions have ceased (death), or else because they lack such functions and are classified as "inanimate."

In biology, the science that studies living organisms, "life" is the condition which distinguishes active organisms from inorganic matter, including the capacity for growth, functional activity and the continual change preceding death. A diverse array of living organisms (life forms) can be found in the biosphere on Earth, and properties common to these organisms—plants, animals, fungi, protists, archaea, and bacteria — are a carbon- and water-based cellular form with complex organization and heritable genetic information. Living organisms undergo metabolism, maintain homeostasis, possess a capacity to grow, respond to stimuli, reproduce and, through natural selection, adapt to their environment in successive generations. More complex living organisms can communicate through various means.

In philosophy and religion, the conception and nature of life varies, and offer interpretations in the frameworks of existence and consciousness, and touch on many other related issues, such as, ontology, value, life stance, purpose, conceptions of God, the soul and the afterlife.

For more information about Life, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: earth , mars , nasa , microbes , amino acids