An
exoplanet is a planet that orbits a star outside of our solar system.
Full definition
Astronomers have for the first time detected ingredients in the atmosphere of a super-Earth, an exotic type
of exoplanet of which there is no parallel in our solar system: It's larger than our home but not as large as a gas giant.
Learn about the discovery of
exoplanets in the TRAPPIST - 1 system in this 2017 video from NASA's Jet Propulsion Laboratory.
TESS, short for
Transiting Exoplanet Survey Satellite, will be the first NASA science mission launched on a SpaceX Falcon 9 rocket.
It's a basic bias in transiting
exoplanet surveys: Larger objects will produce larger changes in a star's brightness, so Kepler is more likely to detect big planets or moons.Another bias is planets with shorter orbits.
The impact
on exoplanets of a massive stellar storm like the Carrington event, which knocked out telegraph service and produced auroras around the world in 1859.
Closer to home, it snapped pictures of giant
exoplanets orbiting other stars, found new moons around Pluto and spied watery plumes bursting from the subsurface ocean of Jupiter's moon Europa.
Each of these has their own strengths, making them useful for detecting
exoplanets with different orbital parameters.
Kepler - 10c was one of the
first exoplanets found by the Kepler space telescope.
He is a member of the survey team for the low - cost Kilodegree Extremely Little Telescope (KELT) system that consists of a pair of robotic telescopes designed to
find exoplanets around bright stars operated by astronomers at Ohio State University, Vanderbilt University, Lehigh University and the South African Astronomical Observatory.
In addition to confirming Kepler - 452b, the Kepler team has increased the number of
new exoplanet candidates by 521 from their analysis of observations conducted from May 2009 to May 2013, raising the number of planet candidates detected by the Kepler mission to 4,696.
Abstract: Three transiting
exoplanet candidate stars were discovered in a ground - based photometric survey prior to the launch of NASA's -LCB- \ it Kepler -RCB- mission.
Hu developed a method of
studying exoplanet atmospheres and surfaces, and had previously only applied it to sizzling, giant gaseous planets called hot Jupiters.
An artist's imagining of Kepler - 62f, a potentially
habitable exoplanet discovered using data transmitted by Kepler.
Kepler - 410 consists of a blend between the fast rotating planet host star (Keple... ▽ More We confirm the Kepler planet candidate Kepler - 410b (KOI - 42b) as a Neptune
sized exoplanet on a 17.8 day, eccentric orbit around the bright (Kp = 9.4) star Kepler - 410A.
The paper looks at the basic rules governing planetary ice extent on Earth -
like exoplanets at different obliquities.
Alex Teachey and David Kipping of Columbia University analyzed the dips in light
from exoplanets passing, or transiting, in front of their stars.
Physicists have simulated the cores of some large rocky
exoplanets by pummeling iron with lasers.
The film focuses on humanity's search for habitable
exoplanets around Alpha Centauri and actually features a few scientists on Mission Centaur's scientific advisory board.
Second, together with our international partners, NSF provides the tools that astronomers need to make precision measurements of planetary systems; the newly inaugurated Atacama Large Millimeter / submillimeter Array (ALMA) can study planets in the act of formation, while the Gemini Observatory is poised for new
exoplanet discoveries with the Gemini Planet Imager (GPI) that will be commissioned in the next year.
The scenario sounds plausible, says Jessie Christiansen at the NASA
Exoplanet Science Institute at the California Institute of Technology in Pasadena.
These included establishing working groups on topics relevant for many questions (missing experimental data, cloud physics and chemistry), plans for workshops / conferences to connect to the community, blog - type snippets on new
exoplanet research papers, just to name a few.
One of HD 10180 ′ s worlds is thought to be around 1.4 Earth - masses, making it the smallest
detected exoplanet before yesterday.
NASA's K2 extended Kepler
exoplanet search mission is now studying the TRAPPIST - 1 system while Spitzer and Hubble will conduct follow - up observations in preparation for study by the James Webb Space Telescope (JWST), set to launch in 2018.
In fact, the planet orbiting the second of these brown dwarfs is one of the
smallest exoplanets known at 3.3 Earth masses.
A new probe seeks
rocky exoplanets orbiting red dwarf stars, as shown in this artist's impression.
Around the time that TESS compiles a list of nearby
exoplanets at the end of its two - year baseline mission, astronomers may have a powerful new eye in the sky to examine the newfound worlds in detail.
The era of early exploration, and the first
confirmed exoplanet detections, is giving way to the next phase: sharper and more sophisticated telescopes, in space and on the ground.
We often discuss and talk
about exoplanets as isolated entities, but this discovery is a poster child for how important interactions between a planet and its host star can be, and a good reminder that planets are being found in large and dynamic solar systems.
There is evidence for Trojan - type regions in other
exoplanet systems and planet formation theory shows that these regions can exist long after planets form in solar systems.
An unsuccessful attempt to catch the Earth - like
exoplanet passing between its star and us means we still know little about its atmosphere and surface
Project Discovery is embarking on a major program of
exoplanets hunting and is calling on capsuleers to assist in analyzing the large quantities of data.
It was developed by JPL, the Keck Observatory and the
NASA Exoplanet Science Institute at Caltech.
In addition to our solar system's eight near - and - dear planets, there are more than 800 so -
called exoplanets known to circle stars beyond our sun.
As excitement builds for an upcoming announcement about the discovery of hundreds
more exoplanet candidates, why is the Kepler team holding back some data from other scientists?
Physicists are testing a powerful new camera known as DARKNESS that is designed to directly
image exoplanets orbiting nearby stars.
The focus from AAVSO will be V - band photometry for the active star Ross 154; we are targeting round - the - clock coverage to disentangle stellar activity from possible
exoplanet detections.
Whatever the reason, a simple lithium measurement — in concert with characteristics such as stellar mass and other chemical abundances — might aid future
exoplanet hunters in pegging the stars that are most likely to bear planetary fruit.
Abstract: This paper reports the discovery and characterization of the transiting hot giant
exoplanet Kepler - 17b.
Researchers have discovered an Earth - sized
exoplanet named Kepler 78b that whips around its host star in a mere 8.5 hours — one of the shortest orbital periods ever detected.
Karl Stapelfeldt, NASA
Exoplanet Exploration Program Chief Scientist, with a possible cover from a future New York Times.