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News tagged with life

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

Is this proof of life on Mars?

The Curiosity rover is currently on its way to Mars, scheduled to make a dramatic landing within Gale Crater in mid-August and begin its hunt for the geologic signatures of a watery, life-friendly past. Solid ...

Space & Earth / Space Exploration

created Apr 13, 2012 | popularity 4.8 / 5 (27) | comments 21 | with audio podcast

Envelope for an artificial cell

(PhysOrg.com) -- Chemists have taken an important step in making artificial life forms from scratch. Using a novel chemical reaction, they have created self-assembling cell membranes, the structural envelopes ...

Chemistry / Biochemistry

created Jan 25, 2012 | popularity 4.8 / 5 (18) | comments 10 | 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

How would humans respond to first contact from an alien world?

According to Star Trek lore, it is only 51 years until humans encounter their first contact with an alien species. In the movie “Star Trek: First Contact,” on April 5, 2063, Vulcans pay a visit to ...

Space & Earth / Space Exploration

created Apr 06, 2012 | popularity 3.8 / 5 (22) | comments 118

Could 'advanced' dinosaurs rule other planets?

New scientific research raises the possibility that advanced versions of T. rex and other dinosaurs — monstrous creatures with the intelligence and cunning of humans — may be the life forms that e ...

Chemistry / Biochemistry

created Apr 11, 2012 | popularity 2.7 / 5 (27) | comments 35 | with audio podcast

Namibia sponge fossils are world's first animals: study

Scientists digging in a Namibian national park have uncovered sponge-like fossils they say are the first animals, a discovery that would push the emergence of animal life back millions of years.

Other Sciences / Archaeology & Fossils

created Feb 06, 2012 | popularity 4.7 / 5 (14) | comments 0

High planetary tilt lowers odds for life?

Highly-tilted worlds would have extreme seasons, subjecting life to alternating periods of scorching and subzero temperatures. This could make the development of all but hardiest, simplest creatures a long ...

Space & Earth / Space Exploration

created Feb 06, 2012 | popularity 4.6 / 5 (13) | comments 14 | with audio podcast

Expectation of extraterrestrial life built more on optimism than evidence, study finds

(Phys.org) -- Recent discoveries of planets similar to Earth in size and proximity to the planets' respective suns have sparked scientific and public excitement about the possibility of also finding Earth-like life on those ...

Space & Earth / Space Exploration

created Apr 26, 2012 | popularity 3.2 / 5 (17) | comments 40 | with audio podcast

Scientists find 'man's remotest relative' in lake sludge

After two decades of examining a microscopic algae-eater that lives in a lake in Norway, scientists on Thursday declared it to be one of the world's oldest living organisms and man's remotest relative.

Biology / Cell & Microbiology

created Apr 26, 2012 | popularity 4.6 / 5 (11) | comments 10

Writing a new code for life?

On "Star Trek, the aliens often look so human that crew members fall in love with them. But in real life, scientists in the field known as astrobiology can't be sure alien life would even be carbon-based like us, or use DNA ...

Biology / Biotechnology

created Feb 13, 2012 | popularity 4.8 / 5 (10) | comments 2

Asteroid sites hint at life on Mars

(Phys.org) -- Craters made by asteroid impacts may be the best place to look for signs of life on other planets, a study suggests.

Space & Earth / Space Exploration

created Apr 16, 2012 | popularity 4.6 / 5 (10) | comments 2

Microbial oasis discovered beneath the Atacama Desert

Two metres below the surface of the Atacama Desert there is an 'oasis' of microorganisms. Researchers from the Center of Astrobiology (Spain) and the Catholic University of the North in Chile have found it ...

Space & Earth / Earth Sciences

created Feb 16, 2012 | popularity 5 / 5 (9) | comments 4 | 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

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

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