Sentences with phrase «percent of planets»

«An alien would spot three planets in our solar system in the habitable zone [Earth, Mars and Venus],» Rushby said, «but we know that 67 percent of those planets are not very habitable.»
«An alien would spot three planets in our solar system in the habitable zone [Earth, Mars and Venus],» Rushby said, «but we know that 67 percent of those planets are not very habitable.»
NASA's Kepler space observatory has shown that almost all red dwarf stars host planets in the range of one to four times the size of Earth, with up to 25 percent of these planets located in the temperate, or «habitable,» zone around their host stars.
Nearly 95 percent of these planets are smaller than Neptune, which is almost four times the size of Earth.
Some studies estimate that during planet formation, 20 - 30 percent of planets acquire moons moving inward and destined for destruction, though they would have long since disappeared.
only 30 percent of this planet are christians but they are the most dominant, there are millions of species living now in our planet but only 1 that is us who are dominant and significant, so its not the numbers but the influence
The U.S. and Canadian NGO ForestEthics reports that «Canada's boreal forest (alone) stores 23 percent of the planet's terrestrial carbon - more carbon per acre than any other ecosystem on earth, including tropical forests.
Although blue is the color most often associated with the world's oceans, black is a far more apt descriptor for nearly 90 percent of our planet's waters.
«Because 70 percent of our planet is covered by water, if they're ballooning, they have to face landing on water,» says Hayashi.
IRON CORE Mercury's iron - rich core extends three - quarters of the way to the surface and makes up 60 percent of the planet's mass.
This new cold war is all about trade and resources: According to a 2008 study by the U.S. Geologic Survey, the Arctic has 20 percent of the planet's undiscovered and recoverable oil and natural gas deposits.
Although 75 percent of the planet is an ocean of blue, the remaining 25 percent of Earth's surface is a dynamic green.
More than 75 percent of the planet's flowering plants depend on pollinators (mostly insects) in order to reproduce.
This is the story of one of the winners, a small, shell - crushing predatory fish called Fouldenia, which first appears in the fossil record a mere 11 million years after an extinction that wiped out more than 90 percent of the planet's vertebrate species.
The sampled rivers carry one third of the water running to the oceans, from a catchment area that embraces 28 percent of the planet's land area.
Given that China is home to 20 percent of the planet's population and a burgeoning, ever more consuming middle class, it's not surprising that the country's footprint on the environment is growing.
Only 185 craters on Earth have been identified, and almost all are on dry land, leaving largely unexamined the 70 percent of the planet covered by water.
Nor are there any limitations on the raw materials of the Calera cement: Seawater containing billions of tons of calcium and magnesium covers 70 percent of the planet and the 2,775 power plants in the U.S. alone pumped out 2.5 billion metric tons of CO2 in 2006.
Almost 10 percent of the planet's land area sits locked under glacial ice, where humans have never ventured.
The Red Planet's atmosphere is thinner during its winter, which lasts roughly 23 percent of the planet's 687 - Earth - day year, or about 154 sols.
Earth's oceans and rivers, pushed by wind and tugged by the moon and sun, ebb and flow over more than 70 percent of the planet, but only recently have researchers and scientists developed the materials and methods to finally harness some of that kinetic energy.
A theory exists that Mars» large North Polar Basin or Borealis Basin, which covers about 40 percent of the planet in its northern hemisphere, was created by that impact, sending debris into space.
Unlike traditional shipboard sonar measurements — which bounce waves off the seafloor and have mapped out a mere 20 percent of the planet's oceans — the satellites captured subtle variations in Earth's gravitational pull at the water's surface.
When it comes to slowing down global warming, the world's oceans — 70 percent of the planet's surface — may be Homo sapiens» best hope for a stable future.
Although wetlands comprise 5 to 8 percent of the planet's land surface, they're holding up to 30 percent of Earth's stored carbon.
Its drain on the earth's resources is enormous: it claims 70 percent of all freshwater taken by our species and more than 40 percent of the planet's solid surface (nearly all the arable land), with attendant casualties in biodiversity.
Because olivine in Earth's mantle has a larger grain size than most olivine samples tested in labs, the results suggest that the mantle, which comprises up to 95 percent of the planet's tectonic plates, is in fact weaker than once believed.
Earth is known as the Blue Planet because of its oceans, which cover more than 70 percent of the planet's surface and are home to the world's greatest diversity of life.
The bacteria produce 20 percent of the planet's oxygen and also consume carbon dioxide from the atmosphere.
Washington, DC — Water makes up more than 70 percent of our planet's surface and up to 60 percent of our bodies.
It contains more than 75 percent of the planet's volcanoes.
Antarctica is home to about 70 percent of the planet's fresh water, and 90 percent of the planet's freshwater ice.
The lower mantle comprises 55 percent of the planet by volume and extends from 670 and 2900 kilometers in depth, as defined by the so - called transition zone (top) and the core - mantle boundary (below).
These shadows cover 30 to 43 percent of the planet's upper atmosphere surface from around 25 to 55 degrees latitude.
Mariner 10, the first spacecraft sent to explore Mercury, gathered images and data over just 45 percent of the planet's surface during three fly - bys in 1974 and 1975.
Oceans cover about 70 percent of the planet, yet we're only just beginning to know their microbial inhabitants and what they do for us and for the planet.
Heat generated by the impacts left up to 10 percent of the planet's surface covered with melt sheets more than a kilometer thick.
After all, the oceans cover 72 percent of the planet.
The spacecraft, after collecting radar images of 98 percent of the planet's surface, makes a dramatic conclusion to its highly successful mission.
Over 70 percent of our planet is covered in water, and we tend to think that's a lot.
Every day, the oceans, which cover 72 percent of the planet, remove about 22 million tons of carbon dioxide from the air.
But more than 70 percent of our planet still remains largely unexplored.
While the Earth's iron core is about 30 percent of the planet's total mass, the Moon's core constitutes only a few percent of its total mass.
Twenty - six percent of the Planet's ice - free land is used for livestock grazing and 33 percent of croplands are used for livestock feed production.
Fifty percent of the ocean, which is 72 percent of the planet, is even deeper than that.
It is home to one - sixth of all plant life on Earth on just one percent of the planet's landmass.
Aug. 28, 2015: More than 90 percent of our planet's freshwater ice is bound in the massive ice sheets and glaciers of the Antarctic and Greenland.
Furthermore, climate change could wreck havoc with ecosystems, he added, and threatens 20 to 30 percent of the planet's plant and animal species.
While that may not seem like a big temperature jump, it amounts to a staggering load of heat when multiplied throughout the depths of this immense system that covers 70 percent of the planet.
The figures were especially low for the Southern Hemisphere, which contains about 60 percent of the planet's oceans but was very poorly sampled — until Argo, an array of around 3,500 floating sensors, was deployed worldwide in 2005.
a b c d e f g h i j k l m n o p q r s t u v w x y z