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July 23, 2015 at 7:54 pm #142931shlomit.laParticipant
“NASA is set to announce the major discovery of a new planet by the Kepler Space Telescope tomorrow (July 23) at noon EDT (5 p.m. BST), and you can watch it live below.
Today we know that Earth is just one of hundreds of billions of planets in our galaxy, itself just one of hundreds of billions of galaxies.
But while this knowledge might seem commonplace, it is rather incredible to remember that the first planet outside the Solar System was not discovered until 1992 – and then only by accident.
Since then, thanks to an array of telescopes we have a greater understanding than ever of some of the exoplanets found elsewhere in the universe – from fascinating hot Jupiters that orbit their stars in days to Earth-sized planets in habitable zones of red dwarfs – but we are yet to find a true Earth 2.0, namely an Earth-sized world around a Sun-like star.
“Today, and thousands of discoveries later, astronomers are on the cusp of finding something people have dreamed about for thousands of years – another Earth,” NASA teased in a statement. The live stream below will reveal the discovery tomorrow at a news conference at noon EDT (5 p.m. BST).”
I thought you should know :thanksJuly 23, 2015 at 7:59 pm #187132JaxKeymaster
Weird, I just saw a picture on instagram of a guess at what the latest planet discovery would be. It’s approximately earth sized which is cool!July 23, 2015 at 11:45 pm #187133Kol DrakeModerator
The planet itself (Kepler-186f) is bigger than our Earth but still in the ‘almost Earth-like’ range.
Kepler (the sun) is a Class M dwarf, about half the size of our sun.
Kepler-186f orbits its star once every 130-days and receives one-third the energy from its star that Earth gets from the sun, placing it nearer the outer edge of the habitable zone.
On the surface of Kepler-186f, the brightness of its star at high noon is only as bright as our sun appears to us about an hour before sunset.
So, Earth-like — it is thought to have landmasses and potential oceans. Habitable? We shall have to wait to see…July 24, 2015 at 3:12 am #187134JaxKeymaster
Different planet. From the NASA facebook page.
Our Kepler mission has confirmed the first near-Earth-size planet in the “habitable zone” around a sun-like star. The newly discovered Kepler-452b is the smallest planet to date discovered orbiting in the habitable zone — the area around a star where liquid water could pool on the surface of an orbiting planet — of a G2-type star, like our sun. More: http://go.nasa.gov/1fp668W #NASABeyondJuly 24, 2015 at 9:12 pm #187135Kol DrakeModerator
“Mine” is only 500 light-years away. “Yours” is 1,400 light-years away.
Unless we get FTL capability, I’m afraid neither of us will get to see the ‘new kids on the block’.July 24, 2015 at 9:45 pm #187136JaxKeymaster
I was only meaning that the press conference was about a different planet. This one is more like our situation, with the star being the same class and all.
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