NASA probe discovers new planet

08 Janvier, 2019, 15:51 | Auteur: Therese Cote
  • TESS Discovers Its Third New Planet

K2-288 is now the third transiting planet system identified through the Exoplanet Explorers program, a project where ordinary citizens can search Kepler's K2 observations to find new transiting planets.

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".

The other two planets it has discovered are Pi Mensae c, a super-Earth that zips around its star in 6.3 days, and LHS 3844b, a rocky planet that flies around its planet in a whopping 11-hour orbit. All three planets were discovered in the first three months of TESS observations. At a cool 300 degrees Fahrenheit (~149 degrees Celsius), it's also "relatively cool" for a planet orbiting so close to its star.

"It's the coolest small planet that we know of around a star this bright", said lead researcher Diana Dragomir, a post-doctoral student at the MIT.

"We think of TESS as an exoplanet-hunter, but in addition TESS is very effective at finding many other types of objects", said Dr. George Ricker, principal investigator with the TESS mission.

The newly identified planet dubbed K2-288Bb is twice the size of the Earth. But HD 21749b is made of denser stuff than the gaseous worlds we're used to, because it's 23 times more massive than Earth. The planet, located in the Taurus constellation, is about half the size of Neptune and could be gas-rich or it could be rocky, according to NASA. Data gathered during the course of its scientific mission, however, paved way to the discovery of a new exoplanet.

HD 21749b completes one orbit of its host star, which is almost as bright as our sun, every 36 Earth days. "The planet likely has a density of water, or a thick atmosphere", Dragomir said.

IPL 2019 will be hosted in India, not SA
A full schedule of the tournament would be decided upon after discussions with relevant authorities, the release further informed. That the IPL will stay in the country was first hinted by BCCI officials during the players' auction in Jaipur last month.

WTA - Brisbane: Osaka balayée, Tsurenko-Pliskova en finale
L'Ukrainienne a été handicapée en fin de match par une blessure à la cheville gauche, qui a tourné sur un appui en tout début de troisième set.

Goerges beats teen sensation Andreescu to retain Auckland crown
If the Canadian can build on what she displayed this week, there will undoubtedly be plenty more finals in the future. The win sees the Canadian reach her maiden WTA semi-final following a hard 2018 campaign marred with injury.

Researchers have also detected evidence of a second planet, with a shorter, 7.8-day orbitin the same planetary system, though it is yet to be confirmed. If it is confirmed as a planet, it could be the first Earth-sized planet discovered by TESS. They have also submitted their discovery paper to Astrophysical Journal Letters. That's actually quite cool, considering how close the planet is to its star.

NASA's TESS mission, which will survey virtually the entire sky over its two-year prime mission, has already discovered three relatively small exoplanets around nearby stars. The satellite will spend the first year surveying the sky in the Southern Hemisphere, before swiveling around to take in the Northern Hemisphere sky. Every three months, Kepler would stare at a differentpatch of sky. For their new analysis, the researchers looked through this data, collected between July 25 and October 14. 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.

Its size is unusual for an exoplanet (the term for a planet that orbits a star outside our solar system). They had noticed the same system and its two transits. "But we had this one transit, and knew something was there".

It turned out that they did not analyze all of the data. "But we re-extracted the data and zoomed in to look more carefully, and found what looked like the end of a transit".

She and her colleagues compared the pattern to the first full transit they had originally discovered, and found a near flawless match - an indication that the planet passed again in front of its star, in a 36-day orbit. "But we were lucky and we caught the signals, and they were really clear". "NASA's Kepler space telescope caught five of these events as they brightened during its first four years of operations".

The discoveries of a new planet and several supernovae are exciting enough and what's to come should give us even more information about the phenomena already discovered.

Conseillé:

  • SoftBank to slash planned WeWork investment: FT

    SoftBank to slash planned WeWork investment: FT

    The scaled-back investment would also mean that SoftBank will not take a majority stake in WeWork, as was previously rumored. The Japanese tech giant is in negotiations to put just $2 billion into the USA firm, the Financial Times reported.

    Flu Season Is Picking Up Across the U.S.

    If you do find yourself with a combination of these symptoms, call your doctor immediately and stay home from work and school. Already the CDC reports 13 children have died from the flu, including one child in IL .
    Hrithik Roshan reveals father Rakesh Roshan diagnosed with early stage cancer

    Hrithik Roshan reveals father Rakesh Roshan diagnosed with early stage cancer

    Some of his notable directorial works include " Khudgarz ", " Khoon Bhari Maang ", " Karan Arjun " and "Koyla". We wish Rakesh Roshan a speedy recovery and a life filled with a plethora of love and contentment galore.
  • La filière dénonce l’interdiction du produit en Californie — Foie gras

    La filière dénonce l’interdiction du produit en Californie — Foie gras

    Les restaurants californiens s'approvisionnaient en foie gras principalement auprès de producteurs des Etats-Unis ou du Canada. Elle interdit la vente, en Californie, des produits " issus du gavage d'une volaille dans le but d'agrandir son foie ".
    Algérie : décès à 38 ans du chanteur de raï Houari Manar

    Algérie : décès à 38 ans du chanteur de raï Houari Manar

    Dés l'annonce de son décès, de nombreux messages sont tombés sur les réseaux sociaux partagés entre douleurs et étonnements. Le parquet d'Alger a ouvert une enquête pour déterminer les causes exactes du décès du chanteur.
    Nissan's ex-chair Ghosn appears in court, asserts innocence

    Nissan's ex-chair Ghosn appears in court, asserts innocence

    Ghosn also defended payments questioned by prosecutors and by Nissan that were made to Khaled Juffali, a Saudi businessman. More than 1,000 people had queued outside the courtroom to draw lots for the 14 seats in the public gallery.
  • Naomi Osaka blames 'childish attitude' for surprise defeat at Brisbane International

    Naomi Osaka blames 'childish attitude' for surprise defeat at Brisbane International

    I don't care if you lose this match right now, I want to see you do the right thing. But then the ball wouldn't go in and then I would go back to being childish.
    La CAN 2019 attribuée dès Mardi — CAF

    La CAN 2019 attribuée dès Mardi — CAF

    Le Maroc, souvent cité comme un prétendant sérieux, n'a pas fait acte de candidature à la surprise générale. L'Afrique du Sud est le seul pays africain à avoir accueilli une Coupe du monde (en 2010).
    What MacBook? HP Launches World's First 15-Inch AMOLED Laptop

    What MacBook? HP Launches World's First 15-Inch AMOLED Laptop

    The AMOLED display option on the Spectre x360 15 marries the laptop's beefy specs with a bright, poppy screen. Nvidia took to the stage at CES to introduce big format gaming displays , otherwise known as BFGDs.
  • Susan Boyle Gets Golden Buzzer On 'America's Got Talent: The Champions'

    Susan Boyle Gets Golden Buzzer On 'America's Got Talent: The Champions'

    Taking on a well-groomed exterior, Susan looked completely different from when she first stepped onto our screens in 2009. As she took to the stage, Cowell joked, "What's your name?", adding, "God, this bring back so many memories".
    Le film

    Le film "Girl" de Lukas Dhont dans la course aux Golden Globes

    Si le film venait à être primé aux Oscars , cela constituerait une première pour la plateforme américaine. Le vétéran Michael Douglas a été fait "meilleur acteur" pour son rôle dans la " La Méthode Kominsky ".
    Apple Trolls Google & Amazon With Billboard at CES

    Apple Trolls Google & Amazon With Billboard at CES

    That's especially true for Monday, Jan. 6: "Press day" is comprised of at least a dozen press conferences, starting at 8 a.m. One major company that you won't find at CES is Apple Inc., which opts to produce its own announcements of new products.


Populaire

How the Government Shutdown Is Affecting Airport Security
Still, many agents just want the shutdown to end so they can focus on their jobs and not worry about their paychecks. Arriving passengers Fox 2/News 11 talked with at Lambert said they did not experience any delays at other airports.

Habs' Weber hit by puck, leaves game
The 33-year-old already missed the first 24 games of the season with foot and knee injuries dating to last season. The veteran was hit in the first period but stayed in the game until the intermission.

China passes law to 'Sinicize' Islam
At Friday's seminar, government-appointed Islamic officials and clerics agreed that their religion needs to follow the CPC's lead. The latest move by Beijing to "Sinicise" Islam will redefine the practise of the religion in China.

Sudanese flood Khartoum streets, demanding president go
Police used tear gas to disperse the protesters, who would regroup and resume the march only to be attacked by tear gas again. The Sudanese government has said that 19 people were killed in the protests, including at two members of the security forces.

Un retour à plusieurs millions de dollars — Meghan Markle
Avec ce grand retour de la duchesse, Meghan Markle dans la série Suits , les scénaristes prendraient en compte sa grossesse. Aucun chiffre final n'a encore été fixé, mais les négociations vont probablement s'ouvrir dans un avenir très proche.

Hyundai designs 4-legged walking vehicle that could help during natural disasters
In addition to unveiling its latest concept vehicle , Hyundai also presented its future mobility road map at CES 2019. Hyundai has been working on the concept with industrial design consultancy Sundberg-Ferar for three years.

Rashida Tlaib‘s swearing-in attire prompted a lovely #tweetyourthobe hashtag
Rashida Tlaib's recent use of an expletive-laced comment against President Trump, tweeting that he is a "motherf--". Meanwhile Tlaib has doubled down, tweeting "I will always speak truth to power".

Samsung records 30% slump in Q4 profit
Alongside this, Samsung's profit margins also took a hit by higher marketing spending throughout the holiday season. But Lee was released from jail in February previous year after several of his convictions were quashed on appeal.

Kevin Spacey attendu au tribunal lundi pour répondre d'une agression sexuelle
Kevin Spacey attendant son ordre d'accusation, aux côtés de l'un de ses avocats. La prochaine audience est prévue le 4 mars.

New York City firefighter plunges to his death from bridge
Officials said that his father is a retired firefighter while his brother is an active firefighter with Ladder Company 14. Firefighters lined up outside Kings County Hospital early Monday and stood at attention as Pollard's body was taken away.