Since the Kepler Space telescope launched back in 2009, it's mission has been to seek out
possible habitable planets.
The findings have direct implications for future NASA missions, such as the Transiting Exoplanet Survey Satellite and James Webb Space Telescope, which will try to detect
possible habitable planets and characterize their atmospheres.
Not exact matches
One
possible strategy for making Mars
habitable over the long term is to «terraform» it — manipulate its environment so, in the simplest terms, the
planet warms up, ice turns into water, and plants can be introduced, which will convert the atmospheric carbon dioxide into oxygen, with the goal of creating a stable and breathable atmosphere.
A
planet's
habitable zone is based on its distance from the sun and temperatures at which it is
possible for the
planet to have liquid water.
Findings published today in the journal Astrobiology reveal the
habitable lifetime of
planet Earth - based on our distance from the sun and temperatures at which it is
possible for the
planet to have liquid water.
But it is
possible that there will be a
habitable, Earth - like
planet within 10 light - years, which is very close in astronomical terms.
From this survey data, NASA's James Webb Space Telescope as well as large ground - based observatories will be able to further characterize the targets, making it
possible for the first time to study the masses, sizes, densities, orbits, and atmospheres of a large cohort of small
planets, including a sample of rocky worlds in the
habitable zones of their host stars.
The research also suggests that
habitable - zone super-Earth
planets (where liquid water could exist and making them
possible candidates to support life) orbit around at least a quarter of the red dwarfs in the Sun's own neighbourhood.
NASA just announced 7 rocky
planets around the cool red star Trappist - 1 — and 3 of those orbit within the
Habitable Zone (where surface liquid water would be
possible).
The next challenge is to image smaller
planets in the «
habitable» zone around stars where
possible life - bearing Earth - like
planets outside the solar system could reside.
Of the new
planets, four are Earth - like
planets, less than 2.5 times the size of our
planet, and are within the
habitable zone, the orbit area around a star where liquid water is
possible, of their sun.
If a small, rocky
planet can develop without the interference of
planet b, then stable orbits appear to be
possible in the inner portion of the
habitable zone (Noble et al, 2002, in pdf; and Jones and Sleep, 2003).
[94] The
planet lies in the
habitable zone of Proxima Centauri, but it is
possible that the
planet is tidally locked to the star, [94] resulting in temperature extremes that would be difficult for life to overcome.
It is
possible, however, that the presence of massive planetary candidate c at an orbital distance around two AUs could disrupt the orbital stability of an Earth - mass
planet in the
habitable zone.
With TESS, it will be
possible to study the masses, sizes, densities, orbits and atmospheres of a large cohort of small
planets, including a sample of rocky worlds in the
habitable zones of their host stars.
This artist's concept depicts one
possible appearance of the
planet Kepler - 452b, a near - Earth - size world in the
habitable zone of a star that is similar to our sun.
They find that much depends on how we set limits on the
habitable zone, but in general habitability durations of a billion years are
possible for
planets within 2 - 3 Roche radii for brown dwarfs above 0.03 solar masses.
The putative Centauri Bb supported the idea that there might be other
planets there, and we've known since the work of Paul Wiegert and Matt Holman back in the 1990s that sustainable
habitable zone orbits are
possible around both the primary Alpha Centauri stars.
In 2008 a team of researchers from the Universities of California, San Francisco State and the SETI Institute published a study in The Astrophysical Journal showing their computer simulations of
planets formation around Alpha Centauri B. For all the
possible initial conditions studied, between 1 and 4
planets were created orbiting that star, of which almost half of them would reside in the
habitable zone.
«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!»
New research describes
possible planetary systems where a gravitational nudge from one
planet could have a mild to devastating effect on the orbit and climate of another, possibly
habitable world.
Since our telescopes and detection programs have only begun being sensitive enough to find a small
planet in the
habitable zone, it is
possible the ones in this sample are not truly representative of the whole
planet population, but are just the easiest ones to find.
The first step in finding
possible abodes for life is to find
planets in the
Habitable Zones of their stars, whose surface temperatures would allow liquid water.
So it's
possible that the effort to understand the epoch of reionization just might help uncover a trove of
habitable planets.
This new
planet is a gas giant and definitely not
habitable, but the
possible universe of exoplanets that just might meet some of the basic criteria for habitability may well have grown.
I am someone with a deep - seated desire to help the
planet remain as
habitable as
possible in the face of the trials humanity is putting it through.