Those Hubble measurements would reveal whether signs of life on Earth -- signs of us!
It is a celebration of life on earth and of the value of biodiversity for our lives.
Discussing the purpose of life on earth, its unwieldiness regularly defeats the best efforts of famous maestros.
The world is invited to take action in 2010 to safeguard the variety of life on earth: biodiversity.
Astrobiology offers a whole new paradigm for the conception of life on Earth.
It is a celebration of life on earth and of the huge value of biodiversity for all of our lives.
If there is intelligent life out there, maybe it is looking for signs of life on Earth from such transits.
Trudy, a crazy bag lady, has taken upon herself the task of showing visiting extraterrestrials the variety of life on earth.
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This would mean that 4 billion years ago, the age of the earliest signs of life on earth, interstellar distances were much smaller.
Our solar system has been around for 4.6 billion years, and the earliest signs of life on Earth date from about 3.8 billion years ago.
Eighty percent of life on Earth, the deepest valleys, the tallest mountains -- it's all underwater but we've only seen five percent of what's out there.
That might help evolutionary biologists answer the question of why, for billions of years, and in every form of life on earth, only two base pairs are used.
While fewer species live in the ocean than on land, marine life represents much older evolutionary lineages that are fundamental to our understanding of life on Earth, Appeltans says.
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But I ask because I am merely wondering whether we sometimes forget a grim reality of the story of life on Earth - that extinction has always been with us.
In the half century since Cloud and Barghoorn began scouring the globe for similar sites, the history of life on Earth has been traced back nearly three and a half billion years.
What makes this tale of amateur astral chemistry even more amazing is that cyanomethanimine is believed to be a precursor to RNA -- one of the building blocks of life on Earth.
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"These billions of tonnes of additional carbon dioxide in our atmosphere will remain there for centuries, causing our planet to warm further and impacting on all aspects of life on Earth, " said WMO Secretary-General Michel Jarraud.
Ibana: Our responsibility towards future generations is mediated by the quality of life on Earth which we shall pass forward to the future in a state that is hopefully better than when we have found it.
My company, Moon Express, is focused on the next stage of commercial space beyond low Earth orbit, and is already developing early precursor robotic missions in partnership with NASA to explore the Moon and learn how to develop its resources for the benefit of life on Earth.
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As an alien robot attempting to master the ways of New Yorkers, Murphy is expectably uproarious, but more than half of his screen time is given over to his straight-man role as the captain, who, along with the rest of his crew, undergoes an emotional awakening upon contact with the joyful irrationality of life on earth.
In this way, things like rocket engines, satellites, Mars-exploring rovers, space suits, and water purifiers on the International Space Station become part of everyday life on Earth.
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Things that change our perception of our life on earth and our place in the universe.
The group studied so-called "C3" plants, the most prevalent type of plant life on Earth for the past 400 million years.
"This database provides an example of how other biologists could similarly collaborate to collectively produce an inventory of all life on Earth, " Appeltans says.
ENGADGET: Scientists estimate at least one third of marine species remain unknown to humans
In Life Everywhere he offers a strong countervailing note of optimism, supported by most astrobiologists' view of evolution: Life on Earth has demonstrated a tendency for ever-greater complexity.
The young director, Joe Carnahan, wants to impress upon us the intractability of our life on this earth.
Abrupt methane releases from frozen regions may have played a major role in two events, 55 and 251 million years ago, that extinguished much of the life then on Earth.
The first Millennium Ecosystem Assessment report, released in March, warned that approximately 60 percent of the ecosystem supporting life on Earth was being degraded or used unsustainably and that the consequences of degradation could grow significantly worse in the next half century.
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