More Proof That Life On Earth May Have Come From Mars
A new study suggests that the necessary ingredients for life existed on Mars first, back when it was far more hospitable than it is now, and arrived here via a meteorite.
What's the Latest Development?
According to biochemist Steven Benner of Florida's Westheimer Institute for Science and Technology, life as we know it may have traveled here courtesy of a Martian meteorite. He bases his theory on what Mars and Earth were like three billion years ago: Mars had more oxygen, which allowed for the creation of a highly-oxidized form of molybdenum that may have played a significant role in the development of life. It also was dry enough to allow boron, another important role-playing element, to form, whereas Earth was probably covered completely by water at the time. Benner presented his findings this week at the Goldschmidt geochemistry conference in Florence.
What's the Big Idea?
Scientists have long speculated that life, in the form of extra-tough microbes, may have arrived here via a meteorite or other space object. Another factor that favors Benner's theory of Mars as the origin is simple orbital dynamics, which "show that it's much easier for rocks to travel from Mars to Earth than the other way around." It's a good thing those microbes left when they did, he says: "If our hypothetical Martian ancestors had remained on Mars, there might not have been a story to tell."
Photo Credit: Shutterstock.com
International poker champion Liv Boeree teaches decision-making for Big Think Edge.
Discover the holistic and all-encompassing philosophies of the ancient East.
- Taoist philosophy teaches its adherents the paradoxical action of non-action.
- Over three thousand years ago, the I Ching conceptualized binary code and influenced major asian religions
- Ram Dass and Herman Hesse synthesized western scientific and philosophic views with traditional eastern religions to inform their teachings.
An MIT study predicts when artificial intelligence will take over for humans in different occupations.
While technology develops at exponential speed, transforming how we go about our everyday tasks and extending our lives, it also offers much to worry about. In particular, many top minds think that automation will cost humans their employment, with up to 47% of all jobs gone in the next 25 years. And chances are, this number could be even higher and the massive job loss will come earlier.
One way to limit clutter is by being mindful of your spending.
- Overbuyers are people who love to buy — they stockpile things as a result. These are individuals who are prone to run out of space in trying to store their stuff and they may even lose track of what — and how much of what — they have.
- One way overbuyers can limit their waste, both money and space wise, is by storing items at the store, and then buy them when they really need them.
- Underbuyers tend to go to extraordinary lengths to not buy things. They save money and do fewer errands, however, they often make do with shabby personal items. They may also, when they finally decide to go out to buy a product, go without entirely because the item may no longer be available.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.