* Astronomy

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RE: Alien life

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Alien invaders

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RE: Alien life

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Is there anybody out there? Probably not, according to a scientist from the University of East Anglia. A mathematical model produced by Prof Andrew Watson suggests that the odds of finding new life on other Earth-like planets are low, given the time it has taken for beings such as humans to evolve and the remaining life span of Earth.
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New planets around other stars (called extrasolar planets or exoplanets) are being discovered all of the time by astronomers, however, a new mathematical study by an English environmental scientist states that intelligent extraterrestrial (ET) life in the universe is probably rare.

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You wouldn't bet on many things surviving a direct hit from a massive asteroid. Yet a few hardy microbes have been shown to live through a simulated smash, boosting the theory that life on Earth could have been seeded from another planet.
Large asteroids or comets that collide with rocky planets like Mars blast fragments into space, and some researchers reckon that this may feed a cosmic conveyor belt of life, in which streams of alien microbes travel from planet to planet inside meteoroids. However, no one had tested whether organisms could survive the extreme temperatures and pressures of the initial collision.

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Is there life out there? If you are under 50, you have grown up with tales of intrepid space explorers who defend the Earth from attacks from dastardly alien plots to enslave the population.
Earlier generations thrilled to the exploits of Buck Rogers and Flash Gordon at the movies and on the radio. Even more than 100 years ago readers thrilled to the memorable stories of H. G. Wells, such as, War of the Worlds. The common theme in almost all science fiction literature is the presence of alien life.

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Drake Equation

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In the event that an asteroid or comet would impact Earth and send rock fragments containing embedded microorganisms into space, at least some of those organisms might survive and reseed on Earth or another planetary surface able to support life, according to a study published in the Spring 2008 (Volume 8, Number 1) issue of Astrobiology, a peer-reviewed journal published by Mary Ann Liebert, Inc. The paper is available free online.

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A controversial theory, that strange red rains in India six years ago might have contained microbes from outer space, hasnt died.
In fact, things might be getting even weirder.
A new study suggests the claimed connection between scarlet rain and tiny celestial visitors may be consistent with historical accounts linking coloured rain to meteor passings. These would seem to echo the India case, in which organisms are proposed to have fallen out of a breaking meteor.

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