«It used to be the thought that life could only exist in a narrow
zone near a planet's star because you need to be there to maintain liquid water.
Not exact matches
As a result the surface is much hotter on the
near side than on the far side, and the most habitable
zone would be the intermediate area between the light and dark sides of the
planet.
He is also part of a NASA team that will soon be using the Transiting Exoplanet Survey Satellite (TESS) to find Earth - like
planets orbiting in or
near the habitable
zone of their stars.
But characterizing a terrestrial
planet in the habitable
zone of our sun's
nearest neighboring star will be one of the most important advances in the history of science.
«The excitement about looking at a
planet in the habitable
zone of the star
nearest to us gets people geared up,» he says.
«We are already extremely lucky to find a
planet bang in the middle of the habitable
zone of our
nearest neighbour,» he says.
In an upcoming issue of The Astrophysical Journal, astronomers report observations by the heat - seeking instruments aboard the Spitzer Space Telescope, which show the
planet's hottest region is located
near its twilight
zone — the line bisecting the day and night sides.
«By combining seven smaller telescopes to synthesize the accuracy of one large one,» says Michael Shao, the scientist at the Jet Propulsion Laboratory who heads the SIM team, «we're going to be able to search the
nearest 40 or so stars to find
planets that are from one to two times the mass of Earth and that are in a habitable
zone around their stars.»
NASA announces the discovery of the first
near - Earth - size
planet in the habitable
zone of a sun - like star.
We show that
planets near the inner edge of the habitable
zone should generally first enter a moist greenhouse state, although
planets around the coolest stars we analyzed should directly transition into a runaway greenhouse state instead.
This is the smallest
planet found by Kepler to be orbiting in or
near habitable
zone of a Sun - like star and represents an important step on the path to finding the first true Earth analog.
Star B was chosen for analysis because efforts are underway to detect of an Earth - like
planet in or
near its habitable
zone (between 0.5 and 0.9 AU) using available technology — more discussion below (Xie et al, 2010; and Jessica Griggs, New Scientist, January 29, 2010).
Kepler has even identified some
planets with Earth - like traits, such as Kepler - 452b, a
near - Earth - size
planet found in the habitable
zone of a sun - like star.
Their simulations suggest that at least one
planet in the one to two Earth - mass range could have formed within orbital distances of 0.5 to 1.5 AUs around both heavy - element - rich stars; of particularly note, the simulations frequently generated a Earth - like
planet in or
near Star B's habitable
zone (where liquid water could exist on the
planet's surface).
«What this means is, when you look up at the thousands of stars in the night sky, the
nearest sun - like star with an Earth - size
planet in its habitable
zone is probably only 12 light years away and can be seen with the naked eye.
Using the very high precision Kepler photometry, and follow - up observations, our confidence that these signals re... ▽ More We present the discovery of a super-earth-sized
planet in or
near the habitable
zone of a sun - like star.
Moreover, the
nearest non-transiting
planet in the habitable
zone is within 5 pc with 95 % confidence.
Petigura said, «When you look up at the thousands of stars in the night sky, the
nearest sun - like star with an Earth - size
planet in its habitable
zone is probably only 12 light years away and can be seen with the naked eye.
NASA said Thursday that Kepler - 452 is the first
near - Earth - size
planet to orbit in the habitable
zone of a star that's similar in size and temperature to our sun.
If Kepler observations were extended to eight years, then a similar analysis could likely confirm systems with multiple closely spaced, small transiting
planets in or
near the habitable
zone of solar - type stars.
Abstract: We present the discovery of a super-earth-sized
planet in or
near the habitable
zone of a sun - like star.
Here, we report observations for the four
planets within or
near the system's habitable
zone, the circumstellar region where liquid water could exist on a planetary surface12, 13,14.
In 2009, computer simulations showed that a
planet might have been able to form
near the inner edge of Alpha Centauri B's habitable
zone, which extends from 0.5 to 0.9 AU from the star.
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.
NASA's Kepler space telescope team has identified 219 new
planet candidates, 10 of which are
near - Earth size and in the habitable
zone of their star.
Two distinct sets of transit events were detected: 1) a 152 + / - 4 ppm dimming lasting 1.811 + / - 0.024 hours with ephemeris T [BJD] = 2454964.57375 + N... ▽ More NASA's Kepler Mission uses transit photometry to determine the frequency of earth - size
planets in or
near the habitable
zone of Sun - like stars.
We present the design and performance of the Environmental Control System (ECS) for the Habitable -
zone Planet Finder (HPF), a high - resolution (R = 50,000) fiber - fed
near infrared (NIR) spectrograph for the 10m Hobby Eberly Telescope at McDonald Observatory.
The orbital distance from Zavijava where a
planet currently would be «comfortable» for Earth - type carbon - based lifeforms with liquid water on the planetary surface in the so - called habitable
zone is centered
near 1.87 AU — between the orbital distances of Mars and the Main Asteroid Belt in the Solar System.
While this fiber system is designed for the Habitable -
zone Planet Finder spectrograph, it is more generally applicable to other instruments in the visible and
near - infrared.
Dubbed Project Blue, the mission aims to build and launch a space telescope with a single goal in mind: to image any
planets in the habitable
zones of the
nearest Sun - like stars.
On February 2, 2011, the Kepler Mission revealed the detection of 54 potential planetary candidates which orbit their host star within or
near its apparent habitable
zone — where liquid water can exist on the surface of an Earth - type
planet.
While larger
planets could have sufficient gravity to attract a massive hydrogen - helium atmosphere, smaller
planets — like Mars or Mercury that have less than half the Earth's mass — located in or
near their star's habitable
zone may lose their initial life - supporting atmosphere because of low gravity and / or the lack of plate tectonics needed to recycle heat - retaining carbon dioxide gas back into the atmosphere (Kasting et al, 1993).
15 new
planets confirmed around cool dwarf stars: K2 - 155d A new
planet near the habitable
zone around a bright cool star https://t.co/cL88VxJI5R https://t.co/WEaSrnfN7d https://t.co/WTh2FLQCg6 #K2155d pic.twitter.com / WRDYdexTIN
On January 6, 2015, at a meeting of the American Astronomical Society, a team of scientists (analyzing data from NASA's Kepler Space Telescope) announced the discovery of eight new
planets orbiting in or
near the habitable
zone of their host stars in Constellation Lyra.
This orbits places the
planet near the inner edge of its host star's habitable
zone, where liquid water could exist in liquid form under favorable conditions such as an albedo of 0.52 with an orbital eccentricity of 0.11 and more than 52 percent cloud cover under a sufficiently dense atmosphere of water, carbon dioxide, and molecular nitrogen like Earth's (ESO science release; Pepe et al, 2011; and Kaltenegger et al, 2011 — more below).