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Exoplanets

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Astronomers using NASA's Hubble Space Telescope, and a trick of nature, have confirmed the existence of a planet orbiting two stars in the system OGLE-2007-BLG-349, located 8000 ly away towards the center of our galaxy. The Hubble observations represent the first time such a three-body system has been confirmed using the gravitational microlensing technique.

Video by Wiggle Puppy Productions:


and Buzz60


Some old-stuff

In 2005-2006 scientists discovered exoplanet OGLE-2005-BLG-390Lb using the 'microlensing' technique. OGLE-2005-BLG-390Lb orbits a red star five times less massive than the Sun and located at a distance of ~ 25000 ly, not far from the center of our Milky Way galaxy.

 
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Remember F-type star KIC 8462852 (aka Tabby's star)? :D (see this post or this one)


Good news: astronomers are gonna observe it!

Beginning tonight (October 26, 2016), UC Berkeley's Breakthrough Listen project is devoting hours of time on the Green Bank radio telescope to see if it can detect any signals from intelligent extraterrestrials

Breakthrough Listen was created last year with $100 million in funding over 10 years from the Breakthrough Prize Foundation and its founder, internet investor Yuri Milner. The observations are scheduled for 8 hours per night for 3 nights over the next two months. Observations will gather ~ 1 petabyte of data over hundreds of millions of individual radio channels.


 
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Potentially Habitable Exoplanet K2-3d



K2-3d's size is 1.5 times the size of Earth. The planet orbits its host star, which is half the size of the Sun, with a period of ~ 45 days. Compared to Earth, the planet orbits close to its host star (~ 0.2 AU). But, because the temperature of the host star is lower than that of the Sun, calculations show that this is the right distance for the planet to have a relatively warm climate like Earth's. There is a possibility that liquid water could exist on the surface of the planet, raising the tantalizing possibility of extraterrestrial life.
 
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Astronomers have discovered 60 new planets beyond our Solar System.

The international team, which includes Dr Mikko Tuomi from the University of Hertfordshire, found the new extrasolar planets orbiting stars close to Earth’s solar system.

The scientists also found evidence of a further 54 planets, bringing the potential discovery of new worlds to 114.

The team said the planets are in our “immediate solar system” and one in particular, Gliese 411b, is of particular interest.


Read here
 
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An Earth-sized planet orbiting a dim star 39 ly away has a hazy atmosphere that could indicate the presence of a "water world", say scientists.

It's one of the first times astronomers have been able to detect an atmosphere surrounding a small rocky planet.

Source: Belfast Telegraph

 
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Astronomers Confirm Orbital Details of TRAPPIST-1h

(the orbital period of TRAPPIST-1h is 19 days)

At 6 million miles from its cool dwarf star, TRAPPIST-1h is located beyond the outer edge of the habitable zone, and is likely too cold for life as we know it. The amount of energy (per unit area) planet h receives from its star is comparable to what the dwarf planet Ceres, located in the asteroid belt between Mars and Jupiter, gets from our sun.


'alien megastructure' KIC 8462852 star is acting weird again



A growing human-made bubble in space could be great news for our future on this planet

 
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Anonymous: NASA Is About to Announce the Discovery of Intelligent Alien Life


I dunno what to say but this video is really interesting to say the least. Some stuff is worthy of attention.
 
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Join astrophysicist Lisa Kaltenegger, who is the director of the Carl Sagan Institute at Cornell University, as she explains the different methods astronomers use to detect exoplanets orbiting distant stars, what these planets would need to support life, and how Earth and its range of species might serve as a Rosetta Stone—a key to detecting the existence of extraterrestrial life.
 

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"Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90, a Sun-like star 2,545 light years from Earth. The planet was discovered in data from NASA’s Kepler space telescope. The newly-discovered Kepler-90i -- a sizzling hot, rocky planet that orbits its star once every 14.4 days -- was found by researchers from Google and The University of Texas at Austin using machine learning. Machine learning is an approach to artificial intelligence in which computers “learn.” In this case, computers learned to identify planets by finding in Kepler data instances where the telescope recorded signals from planets beyond our solar system, known as exoplanets."

https://www.nasa.gov/press-release/...-discover-eighth-planet-circling-distant-star
 
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