NASA Planet Hunter Discovers Third New Planet

NASA  Goddard

NASA's TESS mission, which will survey the entire sky over the next two years, has already discovered three new exoplanets around nearby stars.

The National Aeronautics and Space Administration (Nasa) which launched Transiting Exoplanet Survey Satellite (Tess) for searching exoplanets in April, 2018 has discovered a third small planet outside our solar system.

NASA's planet-hunting telescope is making landmark discoveries at an astonishing pace and has now confirmed discovery of a third new planet and a handful of exploding stars in our "cosmic backyard". Indeed, HD 21749b is very far-flung for TESS; two other smallish worlds found by the mission have orbital periods of 11 hours and 6.3 days, respectively. The team, however, needed at least three transits to claim the discovery of a candidate planet and they did not find a third signal in the observations they reviewed. The exoplanet likely has an average surface temperature around 300 degrees Fahrenheit (150 degrees Celsius), discovery team members said.

"It's the coolest small planet that we know of around a star this bright", Diana Dragomir, a postdoc in MIT Kavli Institute who led this latest discovery, said in a statement.

Estimated to be about 1.9 times Earth's size, K2-288Bb is half the size of Neptune. But it is unlikely that the planet is rocky and therefore habitable; it's more likely made of gas, of a kind that is much more dense than the atmospheres of either Neptune or Uranus.

Although NASA's Kepler space telescope ran out of fuel and ended its mission in 2018, citizen scientists have used its data to discover an exoplanet 226 light-years away in the Taurus constellation.

"It's the coolest small planet that we know of around a star this bright", Dragomir said. This is likely the result of intense starlight breaking up atmospheric molecules and eroding away the atmospheres of some planets over time, leaving behind two populations.

Luke Rockhold Moving Up to Get After 'Princess' Jon Jones
When it comes to such situations, Rockhold thinks if Jones really wants to prove how great he is, he'll move up too. What fight are you most looking forward to? I just go in there and fight.

Samsung forecasts huge profit drop on slower smartphone and chip sales
While sales of its own devices have foundered, the company supplies organic light-emitting diode screens for Apple and Huawei . Samsung said it expects earnings to remain subdued in the first three months of the year due to hard conditions for memory.

ConsenSys and AMD team-up to develop Blockchain-Based Cloud Computing
AMD chips have been popular in running blockchain networks, in particular by retail customers looking to mine cryptocurrencies. Interest has fallen in the months since, however, with sales to miners dropping to " negligible " levels by the end of 2018.

They searched Kepler data for evidence of transits, the regular dimming of a star when an orbiting planet moves across the star's face.

The discovery, discussed at the 233rd meeting of the American Astronomical Society (AAS) and in pre-print at arXiv, is just one of several now coming thick and fast for TESS. This means it is most likely a gaseous planet, rather than rocky like Earth.

The satellite trains its four onboard cameras on each sector for 27 days, taking in light from the stars in that particular segment before shifting to view the next one.

Launched in April 2018 for a two-year mission, Tess will survey almost the entire sky by monitoring and piecing together overlapping slices of the night sky. The satellite will spend the first year surveying the sky in the Southern Hemisphere, before swiveling around to take in the Northern Hemisphere sky. Dr. Ricker briefly touched on a potential extended mission for the planet-hunting telescope that would begin in 2020 and carry on until 2022, in which it would look at additional sectors of the sky that were missed during its first years of operation. For their new analysis, the researchers looked through this data, collected between July 25 and October 14.

The team initially spotted an intriguing signal from the HD 21749 system in TESS's "sector 1" data. Because TESS is programmed to look at a portion of the sky for only 27 days, any planets with a longer orbit are hard to identify. That's actually quite cool, considering how close the planet is to its star.

The planet is in the K2-288 system, which contains a pair of dim, cool M-type stars that are 5.1 billion miles apart, about six times the distance between Saturn and the sun.

"They had looked at this star system a decade ago and never announced anything because they weren't sure if they were looking at a planet versus the activity of the star", Dragomir says.



Latest news

Hindus Will Become Minority if Citizenship Bill Not Passed: Sarma
The AGP has no MP in the Parliament. "We made a last ditch attempt today to convince the Centre not to pass the Bill ". Apna Dal (S) president Ashish Patel said the party can take "any decision" but declined to elaborate.

Man confesses to cyberattack on German politicians
Stephan Mayer, state secretary in the interior ministry, said government networks had not been breached in the attack. It was posted via Twitter before Christmas, but only came to most people's attention on Thursday night.

Technics upgrades its famous DJ turntable with the SL-1200 MK7
What all of this means to the average DJ will depend hugely on the price point Technics assign to the SL-1200mk7. Visually, the LED light can be switched from red to blue and there's a new all-black matte design.

Orange Crush: Clemson topples No. 1 Alabama for CFP national title
And of the top 25 ranked schools at the end of this year's college football regular season, only four were not Nike-sponsored. Terrell, who timed his jump on the ball perfectly and took it 44 yards to the house for the first touchdown of the game.

Susan Boyle triumphantly returns on 'AGT: The Champions'
Boyle, 57, chose to perform " Wild Horses ", the same song she sang during her first-ever America's Got Talent appearance in 2009. After watching her sing, Cowell told her: "I can not think of any other contestant who has defined this show better than you".

Intel releases new 9th Gen Core desktop CPUs without graphics
Lakefield is a new 10nm client platform from Intel that features a hybrid CPU leveraging Intel's Foveros 3D packaging technology. A Neural Network Processor for Training, code-named "Spring Crest", is also set to become available later this year .

Families furious after woman in vegetative state gives birth at nursing facility
It wasn't until she started to moan and they attempted to find out what was wrong that they discovered she was pregnant and in labour.

IPL 2019: Tournament to be held in India despite elections, confirms BCCI
The speculation over where the 12th edition of the Indian Premier League ( IPL ) will be held has finally ended. After that, the league has always kicked off in the first half of April and ended in late May.

Army arrests Khartoum University lecturers
More than 200 people took part in the demonstration , which broke up before the protesters reached the building. But riot police were quick to move in and disperse the protesters with tear gas, witnesses said.

Hyundai Elevate Concept Will Drive And Walk Anywhere To Save Lives
However, we believe, at tsunami or quake hit regions, such a rescue vehicle will mean faster and better access. Hyundai has been working on the concept with industrial design consultancy Sundberg-Ferar for three years.

U.S. House committee queries airport staffing during shutdown
The airport issued an ATC alert for heightened awareness because of the concerns over staffing levels. The partial government shutdown is starting to impact travelers.

Far-right politician beaten within an inch of his life in Germany
SPD General Secretary Lars Klingbeil also condemned the act, writing: "Violence has no place in the political debate". Masked men knocked him unconscious with a piece of wood and kicked him in the head, AfD officials said.

Kohli's 2019 Ashes advice for Australia: 'Dukes ball buries egos'
While the playing XI players will get 15 lakhs each per match, reserve players will get 7.5 lakhs per match. The head coach of the Indian team, Ravi Shastri said, "I will tell you how satisfying this is for me".

Osaka says poor attitude cost her Brisbane semi-final
The Japanese said in quotes on the WTA Tour: "If I'm being really frank, I just feel like I had the worst attitude". "I feel like I didn't really know how to cope with not playing well", Osaka said .

Bianca downs Venus, reaches maiden WTA semi-final
After being broken in the opening game of the second set, Andreescu reeled off 11 straight games to take control of the match. However Goerges made the most of her fresh start, fighting hard for a break of serve before sending the contest to a decider.

Other news