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Topic: Habitable Planets

NASA Kepler Space Telescope data reveals around Half of Sun Like Stars could have Rocky, Potentially Habitable Planets

 

NASA - National Aeronautics and Space AdministrationMountain View, CA – Since astronomers confirmed the presence of planets beyond our solar system, called exoplanets, humanity has wondered how many could harbor life. Now, we’re one step closer to finding an answer.

According to new research using data from NASA’s retired planet-hunting mission, the Kepler space telescope, about half the stars similar in temperature to our Sun could have a rocky planet capable of supporting liquid water on its surface.

This illustration depicts Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone. (NASA Ames/JPL-Caltech/T. Pyle)

This illustration depicts Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone. (NASA Ames/JPL-Caltech/T. Pyle)

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NASA study shows K Stars more likely to host Habitable Planets

 

NASA Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – NASA says scientists looking for signs of life beyond our solar system face major challenges, one of which is that there are hundreds of billions of stars in our galaxy alone to consider. To narrow the search, they must figure out: What kinds of stars are most likely to host habitable planets?

A new study finds a particular class of stars called K stars, which are dimmer than the Sun but brighter than the faintest stars, may be particularly promising targets for searching for signs of life.

This is an artist's concept of a planet orbiting in the habitable zone of a K star. (NASA Ames/JPL-Caltech/Tim Pyle)

This is an artist’s concept of a planet orbiting in the habitable zone of a K star. (NASA Ames/JPL-Caltech/Tim Pyle)

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NASA-funded Large Binocular Telescope Interferometer completes study of dust in “Habitable Zone” around a Star

 

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Veils of dust wrapped around distant stars could make it difficult for scientists to find potentially habitable planets in those star systems. The Hunt for Observable Signatures of Terrestrial Systems, or HOSTS, survey was tasked with learning more about the effect of dust on the search for new worlds.

The goal is to help guide the design of future planet-hunting missions. In a new paper published in the Astrophysical Journal, HOSTS scientists report on the survey’s initial findings.

This artist's illustration shows what the sky might look like from a planet in a particularly dusty solar system. Dust that orbits a star in the plane of the solar system is called zodiacal dust, and the light reflected and scattered by that dust is called zodiacal light. (NASA/JPL-Caltech)

This artist’s illustration shows what the sky might look like from a planet in a particularly dusty solar system. Dust that orbits a star in the plane of the solar system is called zodiacal dust, and the light reflected and scattered by that dust is called zodiacal light. (NASA/JPL-Caltech)

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NASA’s studying of Earth will help to discover Life on another Planet

 

Written by Carol Rasmussen
NASA’s Earth Science News Team

NASA - National Aeronautics and Space AdministrationWashington, D.C. – As a young scientist, Tony del Genio of NASA’s Goddard Institute for Space Studies in New York City met Clyde Tombaugh, the discoverer of Pluto.

“I thought, ‘Wow, this is a one-time opportunity,'” del Genio said. “I’ll never meet anyone else who found a planet.”

That prediction was spectacularly wrong. In 1992, two scientists discovered the first planet around another star, or exoplanet, and since then more people have found planets than throughout all of Earth’s preceding history.

Left, an image of Earth from the DSCOVR-EPIC camera. Right, the same image degraded to a resolution of 3 x 3 pixels, similar to what researchers will see in future exoplanet observations. (NOAA/NASA, Stephen Kane)

Left, an image of Earth from the DSCOVR-EPIC camera. Right, the same image degraded to a resolution of 3 x 3 pixels, similar to what researchers will see in future exoplanet observations. (NOAA/NASA, Stephen Kane)

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NASA says Habitable “Tatooine” type planets could be possible

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – With two suns in its sky, Luke Skywalker’s home planet Tatooine in “Star Wars” looks like a parched, sandy desert world. In real life, thanks to observatories such as NASA’s Kepler space telescope, we know that two-star systems can indeed support planets, although planets discovered so far around double-star systems are large and gaseous. Scientists wondered: If an Earth-size planet were orbiting two suns, could it support life?

It turns out, such a planet could be quite hospitable if located at the right distance from its two stars, and wouldn’t necessarily even have deserts.

This artist's concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B. (NASA/JPL-Caltech)

This artist’s concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B. (NASA/JPL-Caltech)

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NASA scientists research ways to discover habitable planets

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Scientists are getting closer to finding worlds that resemble our own “blue marble” of a planet. NASA’s Kepler mission alone has confirmed more than 1,000 planets outside our solar system — a handful of which are a bit bigger than Earth and orbit in the habitable zones of their stars, where liquid water might exist.

Some astronomers think the discovery of Earth’s true analogs may be around the corner. What are the next steps to search for life on these potentially habitable worlds?

This illustration shows the prototype starshade, a giant structure designed to block the glare of stars so that future space telescopes can take pictures of planets.

This illustration shows the prototype starshade, a giant structure designed to block the glare of stars so that future space telescopes can take pictures of planets.

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NASA missions have discovered an abundance of Water in our Solar System

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – As NASA missions explore our solar system and search for new worlds, they are finding water in surprising places. Water is but one piece of our search for habitable planets and life beyond Earth, yet it links many seemingly unrelated worlds in surprising ways.

“NASA science activities have provided a wave of amazing findings related to water in recent years that inspire us to continue investigating our origins and the fascinating possibilities for other worlds, and life, in the universe,” said Ellen Stofan, chief scientist for the agency. “In our lifetime, we may very well finally answer whether we are alone in the solar system and beyond.”

NASA is exploring our solar system and beyond to understand the workings of the universe, searching for water and life among the stars. (NASA)

NASA is exploring our solar system and beyond to understand the workings of the universe, searching for water and life among the stars. (NASA)

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NASA to Air discussion on Searching for Life Beyond Earth by Leading Space Experts Monday, July 14th

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA Television will air a panel discussion of leading science and engineering experts on Monday, July 14th, from 11:00am to 12:30pm PDT (3:00pm to 4:30pm CDT), who will describe the scientific and technological roadmap that will lead to the discovery of potentially habitable worlds among the stars.

The event will take place at NASA Headquarters in Washington.

The artist's concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone-a range of distance from a star where liquid water might pool on the planet's surface. (NASA)

The artist’s concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone-a range of distance from a star where liquid water might pool on the planet’s surface. (NASA)

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NASA Scientists explain how they Search for Habitable Planets

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – There is only one planet we know of, so far, that is drenched with life. That planet is Earth, as you may have guessed, and it has all the right conditions for critters to thrive on its surface. Do other planets beyond our solar system, called exoplanets, also host life forms?

Astronomers still don’t know the answer, but they search for potentially habitable planets using a handful of criteria. Ideally, they want to find planets just like Earth, since we know without a doubt that life took root here. The hunt is on for planets about the size of Earth that orbit at just the right distance from their star – in a region termed the habitable zone.

This artist's concept shows a Super Venus planet on the left, and a Super Earth on the right. Researchers use a concept known as the habitable zone to distinguish between these two types of planets, which exist beyond our solar system. (Image credit: NASA/JPL-Caltech/Ames)

This artist’s concept shows a Super Venus planet on the left, and a Super Earth on the right. Researchers use a concept known as the habitable zone to distinguish between these two types of planets, which exist beyond our solar system. (Image credit: NASA/JPL-Caltech/Ames)

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NASA’s Kepler spacecraft makes weird discovery of Two Planets Orbiting a Double Star

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – News flash: The Milky Way galaxy just got a little weirder.

Back in 2011 astronomers were amazed when NASA’s Kepler spacecraft discovered a planet orbiting a double star system. Such a world, they realized, would have double sunsets and sunrises just like the fictional planet Tatooine in the movie Star Wars. Yet this planet was real.

Now Kepler has discovered a whole system of planets orbiting a double star.

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