US space agency (NASA) scientists eight new planets outside
our solar system to Kepler space telescope has located. Two of them, a great
part of the structure and attributes of the earth, they are guaranteeing that
match.
225 the meeting of the American Astronomical Society in Seattle,
Washington, USA
that NASA scientists have introduced different information Tuesday on a new
planet. They orbit their stars.
Next Up for NASA's Planet-Hunting Kepler Telescope:
Finding Earth's True
Twin?
NASA's planet-chasing Kepler space telescope has recently
detected Earth's cousin. Its next huge discover may be Earth's twin.
On Thursday (April 17), space experts declared discovery of
Kepler-186f, the first Earth-size outsider planet ever found in its have star's
"tenable zone" — that simply right scope of separations that could
permit fluid water, and maybe life, to exist on a world's surface.
While the disclosure is a watershed minute, Kepler-186f
still misses the mark regarding a definitive prize in exoplanet science: a
genuine "outsider Earth." That's on account of the freshly discovered
world circles a red diminutive person, a star much littler and dimmer than our
own sun.
One of the things we've been searching for is perhaps an
Earth twin, which is an Earth-size planet in the tenable zone of a sunlike
star," said Kepler researcher Tom Barclay, a part of the group that
discovered Kepler-186f.
Kepler-186f is an "Earth-size planet in the tenable
zone of a cooler star," Barclay told Space.com. "In this way, while
its not an Earth twin, it is maybe an Earth cousin. It has comparable
attributes, however an alternate guardian."
Anyway that first outsider Earth may sneak some place in
Kepler's enormous information set, simply enduring to be pulled by mission
researchers.
The $600 million Kepler mission propelled in March 2009 to
decide how regular Earth-like planets are in the Milky Way system. The
observatory was intended to discover outsider planets utilizing the "travel
technique," in which researchers note the obvious brilliance dips that
result when a planet crosses, or travels, its star's face from Kepler's point
of view.
Kepler has been unimaginably fruitful, finding 966 outsider
planets to date — more than a large portion of the known exoplanet count, which
drifts around 1,800 right now. (The careful number relies on upon which of the
five principle exoplanet lists is counseled.) The rocket has likewise caught
almost 3,000 extra planet applicants, the larger part of which ought to be affirmed
by subsequent perceptions or examination, analysts say.
Kepler's unique planet chase finished last May, when a
glitch victimized the telescope of its superprecise guiding capacity. However
as the Kepler-186f advertisement bears witness to, the discovers continue
coming in from the mission — and likely will do so for a long while.
Also the best may be yet to originate from the productive
planet seeker.
"There's still a year of information that we need to
completely break down," Kepler vital examiner Bill Borucki, of NASA's Ames
Research Center
in Moffett Field, Calif.,
told Space.com a month ago. "The information in there is of the littlest
planets with the least travels that are the most important disclosures."
Kepler has as of now demonstrated that little, rough planets
like Earth are normal all through the world — something stargazers didn't know
before the observatory got off the ground.
Before Kepler, planet seekers had been discovering bunches
of "hot Jupiters" — gas monsters that circle greatly near to their
host stars. These huge planets likely shaped more remote however then spiraled
in over the long run, and numerous specialists theorized that such relocations
would free the arrangement of any little, rough planets that had structured — sending
them colliding with the star or catapulting them into the profundities of space.
"The contemplation was, before the mission dispatched,
that there power not be any [other] Earths whatsoever. We may possibly be the
main Earth-like planet in the whole system," Borucki said. "Kepler
has demonstrated this totally offbase. It has demonstrated there is a gigantic
number — at any rate a billion, few billion, likely — of Earth-size planets in
the
Source: internet, bbc etc.
0 comments:
Post a Comment