We May Not Be the Only Humans on Earth
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A 3ft tall &#39;hobbit&#39; discovered on a remote Indonesian island has raised the extraordinary possibility that our human species might not be alone on Earth.
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There have been a couple of movies recently depicting the impending collision of an asteroid with Earth. It might not be sci-fi anymore.
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A top scientist in the storied, sometimes controversial field explains how a population of creatures can be viewed as a high-level organism unto itself rather than a collection of disparate individuals.
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It has been pointed out many times that we are engaged in a titanic global experiment. The further it proceeds, the clearer the picture should become.
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When it comes to DNA, a human is closer to a chimpanzee than a mouse is to a rat. Yet tiny differences sprinkled throughout the genome have made all the difference, giving humans agriculture, language, art, music, technology and philosophy -- all the achievements that make us profoundly different. Until recently, there was no way to unravel these crucial differences, but that's rapidly changing.
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The 130 extrasolar planets discovered so far are in solar systems very different from our own, in which life-bearing planets like Earth are unlikely to exist. But an obscure characteristic of these planets and their stars has led astronomers to predict that our galaxy is brimming with solar systems like ours. The key to their prediction is something called metallicity.
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By Cheryl Winkelman, STAFF WRITER We are not alone in the universe if the numerous sightings of unidentified flying objects are to be believed.
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Ten thinkers and scientists that could change the world.
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Those of us not raised with the comforts of religion must make do with denial. It&#39;s not a great trade. The overwhelming probability that all of us, our successes and failures notwithstanding, will wind up
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Scientists have unearthed a new species of hobbit-sized humans that may have lived as recently as 12,000 years ago, sharing the earth alongside modern-day man.
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Researchers behind the study speculate that other life-forms may have already sent us messages, perhaps even as organic material embedded in asteroids that have struck Earth.
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A group of British scientists believes people should be viewed as 'superorganisms,' made of conglomerations of human, fungal, bacterial and viral cells. It's a sensible view, given that human bodies contain more than 500 bacterial species. By Rowan Hooper.
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The odds aren't as long as you might think.
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"It's human nature to look." Sure, but does that make it right?
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Genetic evidence suggests humans have moved into the evolutionary fast lane and are becoming increasing different.
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Ice caps are melting on both Earth and Mars. According to one researcher's controversial theory, this suggests that global warming has nothing to do with humankind.
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SPACE.com / To most common terrestrial dwellers, there's no place like Earth. But new simulations show that many Earth-like planets might exist outside of our solar system.