Earth's magnetic field has flipped--though not overnight--many times throughout the planet's history. Its dipole magnetic field like that of a bar magnet remains about the same intensity for thousands to millions of years but for incompletely known reasons it occasionally weakens
Though a magnetic reversal is a major planet-wide event driven by convection in Earth's iron core there are no documented catastrophes associated with past reversals despite much searching in the geologic and biologic record.
Measuring gravitational pull of a planet should speed search Astronomers Chih-Hao Li and David Phillips of the Harvard-Smithsonian Center for Astrophysics want to rediscover Venus--that familiar nearby planet stargazers can see with the naked eye much of the year.
Granted humans first discovered Venus in ancient times. But Li and Phillips have something distinctly modern in mind.
They plan to find the second planet again using a powerful new optical device installed on the Italian National Telescope that will measure Venus'precise gravitational pull on the sun
when a planet orbiting a distant star transits that luminous body moving directly between the Earth
and the star This provides information about the planet's size but not its mass.
which offers complementary information about the mass of the distant planet. From this information astronomers will be able to determine
The method is precise enough to help astronomers identify Earthlike planets in the habitable zone the orbital distance sweet-spot where water exists as a liquid.
however will be able to detect Doppler shifts as small as 10 centimeters per second--small enough to find habitable zone Earthlike planets even from hundreds of light years away.
The Harvard-Smithsonian team is installing this device on the High-Accuracy Radial Velocity Planet Searcher-North (HARPS-N) a new spectrograph designed to search for exoplanets using the Italian National Telescope.
Not least, in the early stages of a star evolution the dust can coagulate into large clumps the first step towards forming planets.
whether brown dwarfs form like stars or like planets. Stars form when a giant cloud of gas
and eventually planets form from the material in that disk. In the early stages of star formation, jets of material are propelled outward from the poles of the disk.
and we'll cool planet Siemens: 880m euros'worth of wind power orders since July Google invests $75 million in U s. wind far r
Mandarin chinese is the most popular first language on the planet. It beats out English by 5 million speakers.
You can think of it as being biocompatible with our planet. But if this material gets put in your garden or on the side of the road,
having arrived at the ISS thanks to a Spacex Falcon 9 rocket launched in April. ur team is developing the technology that will enable humanity to create an off-planet economy that will fundamentally change the way we live on Earth,
#The Bank of Facebook Technology is changing one of the most fundamental mediums that touch every person on the planet:
In the next five years, nearly every person on the planet will have access to the Internet.
When every family on the planet has access to a smartphone with fast Internet, the paradigm changes.
The hope is that it could also be distributed using the same global network of liquid fuel transport that moves petrol around the planet.
and even look for rocky planets in the habitable zones around nearby M dwarf stars. And because Law and co intend to store all the data produced by the Evryscope,
But in the online world, you have to worry about criminals who may be located anywhere on the planet.
Its stated aim is to bring affordable Internet access to everyone on the planet an effort that could incidentally supply Facebook with many new customers (see acebook Two Faces.
much as an Earth geologist would do field work here on our planet, said Norris. The Onsight tool also will be useful for planning rover operations.
It also provides a vital tool for NOAA to continually take the planet pulse to assist in understanding major climate shifts t
Is jet travel becoming the dirtiest way to cross the planet? The search for aviation biofuels broke on to the public stage in the late 2000s
to characterize their lifestyles. eople have seen these bacteria in surveys of many different environments all over the planet,
and makes the planet warmer. According to the U s. Environmental protection agency coal-and natural gas-fired plants were responsible for one-third of U s. greenhouse gas emissions in 2012.
It become clear that there are many alternative ways to generate energy without destroying the planet d
far enough away from Earth that it should be able to escape the gravitational pull of our planet.
or to look at Earth and track asteroids near the planet. The idea for a spacecraft to be equipped with a solar sail to use the solar wind for propulsion was described by the late astrophysicist Carl Sagan four decades ago. ecause it has a constant acceleration,
but in future the technology could be used for missions to the moon and other planets in the solar system. ith solar sailing,
olar sailing can take us to the moon, to other planets, and even to interstellar space. e
colour video feed of the planet from the ISS in high-definition. And in preparation, it has launched the first ever, full-colour HD videos of Earth showing London, Boston and Barcelona-at an incredible 3. 2ft (1 metre) resolution.
Scroll down for video This is detailed enough to be able to see cars and even people moving around the planet
#Darpa is working on designer organisms to make Mars the new Earth Modifying a planet's atmosphere to make it habitable for humans could soon be a possibility, according to the Pentagon Defense Advanced Research Projects Agency.
and other planets all while burning calories and toning muscles. he first design model was developed on the basis of VR in 2012,
This is going to be the biggest tectonic transformation that the planet has seen ever. Whether it going to lead to the ultimate destruction of mankind
#Earth's magnetic field may be more than 750 million years older than previously thought The Earth's magnetic field is crucial to life on the planet.
A new analysis of zircon minerals suggests that the field originated at least 4. 2 billion years ago a hop after the planet formed in the geological timeline,
For this new estimate, Tarduno and his team looked at tiny zircon gemstones in Western australia that date back to the earliest two eons in the planet's history the Archean and Hadean periods.
which involved all the planets in the Solar system getting pummelled by comets and asteroids for two or three hundred million years.
but it collapsed after around four billion years and left the planet vulnerable to atmospheric stripping by solar wind o
Bolt isn wasting any time. e are on the verge of a total transformation of consumer apparel that will reach every person on the planet,
or perhaps something a little larger, say, an entire planet. Top image: An intense Gaussian-shaped x-ray pulse (transparent blue shape) has passed just through a cluster of Argon atoms (pink spheres.
and he's a pretty cool dude who's willing to do almost anything to save the planet.
Along with David Ingvasson, a fellow Ossur tester, he's one of the only people on the planet who owns a brain-controlled bionic limb.
"The mosquito is the most dangerous animal on the planet, because it carries so many pathogens,"Microsoft researcher Ethan Jackson,
much as an Earth geologist would do field work here on our planet, "said Norris. The Onsight tool also will be useful for planning rover operations.
"The research also clarifies the evolution of our planet--and of life itself--during the"iron-rich"era 2. 5 billion years ago."
sources of X-rays on the planet. The LCLS X-rays are a billion times brighter than those from synchrotrons
and eddies of little rain and snowstorms crossing the planet on an everyday basis. Large storms racing across the Southern ocean without any land impeding them can be identified.
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