The "Super Earth" is among three new planets and six supernovae outside our solar system that have been observed by Nasa's planet-hunting Tess mission in its first three months.
HD 21749b appears to have the longest orbital period of the three planets so far identified by Tess.
The scientists announced the results at the annual American Astronomical Society meeting in Seattle. The planet has an orbit of 36 days and a surface temperature of about 300 degrees Fahrenheit.
"It's the coolest small planet that we know of around a star this bright", lead researcher Diana Dragomir, a post-doctoral student at the MIT, said.
"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.
Kepler-452b, dubbed "Earth 2.0", shares many characteristics with our planet despite sitting 1,400 light years away.
"It's the coolest planet we know of around a star this bright".
The new world, known as K2-288Bb, could be rocky or could be a gas-rich planet similar to Neptune.
There is also evidence that a second planet could exist in this system with a 7.8-day orbit - which could be the first Earth-size planet dicovered by TESS.
The Kepler telescope was launched by NASA specifically to discover Earth-sized worlds since it was launched into space in 2009.
NASA’s exoplanet hunter the Kepler space telescope leaves a legacy of more than 2,600 exoplanet discoveries
The exoplanet, known as K2-288Bb, is about twice the size of Earth and orbits within the habitable zone of its star, meaning liquid water may exist on its surface.
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.
Experts compared the system to the famous "double-sunset" pictured on Luke Skywalker's home planet Tatooine in "Star Wars: A New Hope". The exoplanet lies in the stellar system K2-288, which has two dim, cool stars.
So the reprocessed, "cleaned-up" light curves were uploaded through the Exoplanet Explorers project on online platform Zooniverse, and the public was invited to "go forth and find us planets", Feinstein said.
Tess has also detected dozens of short-lived events, including images of six supernovae in distant galaxies that were later seen by ground-based telescopes. To put it in context, Michael Fausnaugh, a pipeline scientist on TESS, discussed this in comparison to NASA's now defunct Kepler telescope. "But we re-extracted the data and zoomed in to look more carefully, and found what looked like the end of a transit". So far, it's right on schedule: About a quarter of the sky has been photographed, eight months after its launch and six months after it began its two-year primary science mission.
TESS is in the process of scanning the entire southern sky, after which it will turn and canvass the northern sky.
Tess monitors sections of the sky and waits for momentary dips in the light of about 200,000 nearby stars - a sign that a planet has passed in front of that star. Bright stars allow for easier followup study through ground- and space-based telescopes.
There will be more opportunities for citizen scientists to help discover exoplanets.
The pair were working as interns with Joshua Schlieder, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, at the time. That telescope, launching in 2021, would be able to characterize the details and atmospheres of exoplanets in ways scientists have not been able to do.
Trespasser Caught On Camera Licking Doorbell
Arroyo also appeared on camera relieving himself on the property and at one point seems to lie down to sleep. Footage showed the man licking the doorbell. " Pretty creepy stuff", Dave Dungan said.
Soulja Boy's car among those trapped by California mudslide
To the north, wind and rain forced delays or cancelations of flights out of San Francisco International Airport for a second day. Soulja Boy's real name is DeAndre Cortez Way and he has retweeted well wishes from fans and news stories about the mudslides.
They called for witnesses to the attack, which took place early on Monday evening near a city theatre in Bremen, to come forward. It entered the national parliament in 2017 and is now the biggest opposition party there.
Fifty ambulances were at the scene and three helicopters assisted with getting critically injured patients to hospitals. Mofokeng said both trains had been travelling in the same direction and on the same track when the collision happened.
On Monday, the agency noted that 2.2 million passengers were screened the day before, with an average wait time of 30 minutes. They can only be called back to work if there is a "reasonable likelihood" of a life-threatening safety issue.
Previous year he won a court case brought by AfD leader Alice Weidel, who complained when he called her a "slut" on his TV show. It described its activities as "security researching", "artist" and "satire and irony" and said it was based in Hamburg.
He said that the conversation was focused on the issue of USA nationals adopting Russian children and the Magnitsky Act. It also accused Magnitsky himself of committing the Russian Treasury Fraud, when as the feds outline he reported it.
And of the top 25 ranked schools at the end of this year's college football regular season, only four were not Nike-sponsored. Tua Tagovailoa passed for 295 yards and two TD's but was intercepted twice, including a pick-six.
Pictures Group Chairman Toby Emmerich responded: "This project is a great start to our partnership with Ynon and Mattel Films". Pictures announced Tuesday that Robbie will star as the iconic doll in the franchise's first-ever live-action film.
This only undersores the challenge both industry and government face in meeting ambitious climate change targets. She went back to the data, nearly 30 per cent reflecting the development in other countries.
The murders of Samadi and Nissi also led to the Netherlands expelling two Iranian diplomats from the country in June 2018. Tehran at the time protested the expulsion as an "unfriendly and destructive move" and threatened to retaliate.
His comments, not surprisingly, sparked quite an uproar, with many calling him out on social media for both ageism and sexism. The journalist and writer Colombe Schneck, aged 52, published a photo of a backside on her Instagram account .
Technics announces SL-1200 MK7 turntable
The most exciting news for some of us at this year's CES has been the relaunch of the famous Technics SL-1200 DJ turntable range. The SL-1200 MK's finish is matte black and features an all-black tonearm.
Chelsea boss Sarri coy over Barella bid plans
Chelsea midfielder Cesc Fabregas could be just hours away from signing a contract with Monaco. Of course some time he will be on the bench but [that is the] same as Willian and Pedro.
Kawhi Leonard fills stat sheet as Raptors edge Bucks
Antetokounmpo tried to rally the Bucks in the fourth when he scored eight points on a pair of 3s and a layup during a 14-4 run. In a matchup of the top two teams in the Eastern Conference, the Toronto Raptors went on the road and beat the Bucks 123-116.
Resident Evil 2 demo coming Thursday, on a timer
You can even save your game, giving you a chance to play through as many times as you need to fill out Nero's move list. This demo will be different than the one that Capcom released last month and was exclusively playable on Xbox One.