is there life on other planets
Earthly extremes hint to life elsewhere
Even though animal life is abundant on Earth today, much of the life here remains microscopic, said Jocelyne DiRuggiero of Johns Hopkins University at a Harvard Origins of Life lecture. Credit: Rose Lincoln/Harvard Staff Photographer
If Jocelyne DiRuggiero was looking for life on Mars, she wouldn’t dig in the planet’s red soil. Instead, she’d head where you might not expect.
“I’d go to the salt flats, because there’s more water there,” DiRuggiero said.
In saying that, DiRuggiero drew on her experience investigating extreme environments, places that the hardiest single-cell organisms call home. Her recent investigation of Chile’s barren Atacama Desert, a high plateau that scientists believe is the driest place on Earth , showed that the microbial communities appeared to be thriving best in rocks composed of salts, which retained the most moisture.
DiRuggiero, a biologist from Johns Hopkins University, presented her findings on Wednesday (May 18) during a talk at Harvard’s Geological Museum sponsored by Harvard’s Origins of Life Initiative.
For most of Earth’s history, life has been dominated by microorganisms. Scientists estimate that life began 3.4 billion years ago and that the animal life that dominates the planet didn’t show up until 500 million to 600 million years ago. That means that for most of the planet’s history, life here was microscopic. That also means chances are that if there is alien life on other planets, it will be microscopic as well.
Even though animal life is abundant on Earth today, much of the life here remains microscopic, DiRuggiero said. Microorganisms have colonized land and sea from pole to pole in vast numbers that far outstrip the number of stars in the Milky Way galaxy. Even human bodies are home to vast numbers of microbes, DiRuggiero said. Though some bodily microbes are harmful, many help people to digest foods, fight off invaders, and perform other useful functions.
is there life on other planets - News
In the search for life on other planets, scientists are looking beyond single-celled organisms and are developing techniques that would help them detect multicellular life. In a recent study published in the journal Astrobiology, researchers are
That means that for most of the planet's history, life here was microscopic. That also means chances are that if there is alien life on other planets, it will be microscopic as well. Even though animal life is abundant on Earth today, much of the life
By Douglas Craig: Humanity's dream of exploring the wonders of space--to look for life on other planets and to better understand our place in the universe--has not diminished over the years. But advances in human space exploration beyond low-Earth
NASA's Kepler space telescope has found 171 systems containing more than one planet, like the two-planet system in this artist impression. BOSTON—Planets like company. No less than one in three of all planets around other stars found by NASA's Kepler
Given what we do understand about rocks and planets and dairy products and the Solar System, it's absurd to imagine that the Moon is made of green cheese. We know better. We also know better for life after death, although people are much more reluctant
Is it Possible that Life Exists on Other Planets?
The Possibility of Life on Other Planets
The possibility that life may exist on other planets is something which has long fascinated the world and managed to bring together groups of individuals that would otherwise never even think of intermingling. From scientific researchers to crackpot conspiracy theorists there are so many theories out there that center on the possibility of life on Earth that many people devote their lives to proving or disproving the theory. There seems to be one common thread for all of these diverse groups of people; however, where some may believe that life on other planets consists of little green men and others believe that life on other planets consists of human like beings, the common thread for each of these groups is the presence of intelligent life forms on a planet other than Earth.
Is There Life On Other Planets?Ask most people across the world and they will tell you that they believe in the possibility of life on another planet and they will generally clarify themselves so as not to appear as a “crackpot” that the life on other planets does not have to be “aliens.” There are others who will openly admit to a belief in alien life forms and they will even share with you stories of alien abduction. While everyone’s understanding of life outside Earth varies nine out of every ten people will admit to believing in some other life force outside of our planet. For many people this belief tends to stem from science fiction but for others this belief in alien life forms comes from a desperate hope that humans cannot possibly be the most intelligent life form in the universe. Pointing to the signs of destruction all over the planet and pointing out how quickly the human race is destroying the one and only planet they can survive on to date, people tend to panic. How can the most intelligent life force in the universe be destroying the one planet which is able to sustain it? For this reason many people believe that there must be a more intelligent life force across the universe somewhere.
i wanna leave this but unfortunately there is no on other 
Is there life on other planets?
Sometimes I know that there is intelligent life on other planets because they haven't tried to contact us.
Do you believe there's intelligent life on other planets? — absolutely there's no way that Earth is the only plane…
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