Not exact matches
Its discovery proved that the
Kepler spacecraft, which was launched in March 2009, could indeed do what its designers had boldly promised: find small, Earth - size
planets around distant
stars, a task that once seemed so difficult as to border on the absurd.
Captured by
Kepler's digital sensors, transformed into bytes of data, and downloaded to computers at NASA's Ames Research Center near San Francisco, the processed starlight slowly revealed a remarkable story: A
planet not much bigger than Earth was whipping
around its native
star at a blistering pace, completing an orbit — its version of a «year» — in just over 20 hours.
Kepler - 186f is the first Earth - size
planet discovered in the potentially «habitable zone»
around another
star, where liquid water could exist on the
planet's surface.
It took Bill Borucki more than 30 years and $ 600 million to build the
Kepler telescope so he could detect
planets around other
stars.
Kepler - 186f is the fifth and outermost
planet discovered orbiting
around the dwarf
star Kepler - 186.
«We're always trying to look for Earth analogs, and that is an Earth - like
planet in the habitable zone
around a
star very much the same as our Sun,» said Kane, who is the chair of
Kepler's Habitable Zone Working Group.
Kepler launched in March to search for life - friendly
planets around other
stars.
Early in its mission,
Kepler managed to find some tantalizing worlds, a handful of supersize cousins of Earth, most of them in clement orbits
around smaller, cooler, quieter
stars than the sun called M and K dwarfs, but all the setbacks made finding smaller Earth - sized
planets around sun - like G
stars a very tall order.
Recent observations from the
Kepler space telescope suggest that
planets the size of Jupiter are relatively uncommon
around other
stars.
Unfortunately,
Kepler can not provide that kind of detail on the more than 2,300 likely
planets it has discovered
around other
stars.
The shortest - period binary
star system
around which a circumbinary
planet has been discovered was
Kepler 47, with a period of about 7.45 days.
NASA's
Kepler spacecraft made an unexpected catch in 2011: While looking for
planets around other
stars it also happened to snap a brace of supernovae, allowing astronomers to observe the shockwave that triggers them for the first time in detail.
NASA's prolific exoplanets - hunting satellite
Kepler has found its strongest candidate yet for an Earth - like
planet in a life - friendly orbit
around a sunlike
star.
«New Horizons is the latest in a long line of scientific accomplishments at NASA, including multiple missions orbiting and exploring the surface of Mars in advance of human visits still to come; the remarkable
Kepler mission to identify Earth - like
planets around stars other than our own; and the DSCOVR satellite that soon will be beaming back images of the whole Earth in near real - time from a vantage point a million miles away.
The oldest detected
Kepler planets (exoplanets found using NASA's
Kepler telescope) are about 11 billion years old, and the planetary diversity suggests that
around other
stars, such initially frozen worlds could be the size of Earth and could even provide habitable conditions once the
star becomes older.
Borucki says it will be a few years yet before
Kepler is able to identify a true Earth analogue — a small
planet on a one - Earth - year orbit
around a sunlike
star.
The
Kepler space telescope, which simultaneously and continuously measured the brightness of more than 150,000
stars, is NASA's first mission capable of detecting Earth - size
planets around stars like our sun.
MOFFET FIELD, CALIFORNIA — NASA's
Kepler space telescope appears to have confirmed the existence of an alien world smaller than our own Earth — the first time such a
planet has been discovered
around a
star like our sun.
Trailing Earth in an orbit
around the sun,
Kepler monitors the brightness of about 150,000
stars, looking for periodic dimming that might be caused by a
planet passing in front of its
star.
«This indicates that
planets around metal - poor host
stars are less dense than rocky
planets of comparable size
around more metal - rich host
stars like the Sun», explains Claude «Trey» Mack, project scientist for the
Kepler - 444 observation.
Habitable Earth - size
planets might turn up sooner
around smaller, cooler
stars in
Kepler's field of view, where water could persist on closer - orbiting
planets that would complete laps
around their host
stars more quickly.
A paper showing what protoplanetary disks masses were needed to form the
Kepler planets around sun - like
stars just appeared online.
When it is launched TESS will complement the observations being made by
Kepler, NASA's first mission capable of finding Earth - sized
planets around other
stars.
So I started a small research project investigating what the
Kepler planet population looked like
around stars of different masses.
NASA's
Kepler Space Telescope is an observatory in space dedicated to finding
planets outside our solar system, particularly alien
planets that are
around the same size as Earth in the «habitable» regions of their parent
star.
Preferred Hosts for Short - Period Exoplanets In an effort to learn more about how
planets form
around their host
stars, a team of scientists has analyzed the population of
Kepler - discovered exoplanet candidates, looking for trends in where they're found.
K2, the re-purposed
Kepler mission, continues this exploration of small
planets around small
stars.
Abstract:
Kepler - 93b is a 1.478 + / - 0.019 Earth radius
planet with a 4.7 day period
around a bright (V = 10.2), astroseismically - characterized host
star with a mass of 0.911 + / -0.033 solar masses and a radius of 0.919 + / -0.011 solar radii.
The newly discovered exoplanet — a
planet that orbits
around a
star other than the sun (also called extrasolar
planet)-- is called
Kepler - 452b.
Based on 86 radial velocity observations obtained with the HARPS - N spectrograph on the Telescopio Nazionale Galileo and 32 archival Keck / HIRES observations, we present a prec... ▽ More
Kepler - 93b is a 1.478 + / - 0.019 Earth radius
planet with a 4.7 day period
around a bright (V = 10.2), astroseismically - characterized host
star with a mass of 0.911 + / -0.033 solar masses and a radius of 0.919 + / -0.011 solar radii.
The... ▽ More We report the detection of three transiting
planets around a Sunlike
star, which we designate
Kepler - 18.
Kepler's new mission, K2, is targeting several open clusters and
star - forming regions
around the ecliptic to... ▽ More Open clusters have been the focus of several exoplanet surveys but only a few
planets have so far been discovered.
The
Kepler spacecraft, which was launched in 2009 by NASA to find Earth - like
planets orbiting other
stars, has found yet another exoplanet, which orbits
around a
star much smaller and cooler than the sun.
The \ emph -LCB-
Kepler -RCB- spacecraft revealed an abundance of small
planets around small, cool
stars, therefore, such cluster members are prime targets for exoplanet transit searches.
In contrast, true transiting
planets would appear clustered
around a smaller number of
Kepler targets if detectable
planets tend to come in systems and / or if the orbital planes of
planets encircling the same
star are correlated.
We can rule out gas giants at Barnard's
Star thanks to continuing Doppler monitoring, but we can't yet rule out small rocky
planets of the kind we are now turning up
around other M - dwarfs in data from the
Kepler mission.
Kepler's new mission, K2, is targeting several open clusters and
star - forming regions
around the ecliptic to search for transiting
planets around their low - mass constituents.
Kepler is the first NASA mission capable of finding Earth - sized
planets around other
stars.
Winn, who is also a Participating Scientist in the NASA
Kepler mission, is interested in the properties of
planets around other
stars, how
planets form and evolve, and whether there are
planets beyond Earth capable of supporting life.
Planets like Kepler - 1647b in orbit around binary stars are known as circumbinary planets, and planet hunters spot them by looking for a dimming in the light from a star as the planet transits, or passes in front of the star from our persp
Planets like
Kepler - 1647b in orbit
around binary
stars are known as circumbinary
planets, and planet hunters spot them by looking for a dimming in the light from a star as the planet transits, or passes in front of the star from our persp
planets, and
planet hunters spot them by looking for a dimming in the light from a
star as the
planet transits, or passes in front of the
star from our perspective.
The occurrence of 2 - 4 Re
planets in the
Kepler field increases with decreasing Teff, making these small
planets seven times more abundant
around cool
stars than the hottest
stars in our sample.
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.
Because of these measurements we fully expect that this catalog can be used to accurately calculate the frequency of
planets out to
Kepler's detection limit, which includes temperate, super-Earth size
planets around GK dwarf
stars in our Galaxy.
UNLV astrophysicist Jason Steffen co-led a study with Harvard researchers that used computer models to analyze two
planets that were discovered close together
around a
star, known as
Kepler - 36, about 1,200 light - years from Earth.
«There's a tantalizing incentive: it's possible that some potentially habitable
planets like Earth, which are relatively small and orbit
around relatively dim
stars, might be hiding just below the traditional detection threshold — there might be hidden gems still undiscovered in the
Kepler data!»
That's
Kepler - 11, a sun - like
star around which six
planets orbit.
In its initial mission,
Kepler surveyed a specific patch of sky in the northern hemisphere, measuring the frequency with which
planets whose sizes and temperatures are similar to Earth occur
around stars like our sun.
VLA observations revealed the speed of material in the disk, indicating that the disk is rotating
around the central
star according to
Kepler's laws of planetary motion, just as the
planets of our Solar System do.
The smallest
planet orbits
Kepler - 33, a
star older and more massive than our Sun, Sol, which also had the most detected
planet candidates at five (ranging in size from 1.5 to 5 times that of Earth) in uninhabitable, hot inner orbits closer to their
star than even Mercury
around our Sun (NASA
Kepler news release; and JPL news release).
The
Kepler Mission has detected the possible transits of several hundred potential super-Earth - and Earth - sized
planets around distant
stars (more).