Exoplanet LHS 1140b may be most habitable yet found
20 April, 2017, 09:28 | Author: Sam Montgomery
Today researchers at Harvard-Smithsonian made an exciting announcement: a newly discovered planet may be the best candidate yet for finding life outside of our solar system.
Wednesday, another red dwarf star is making headlines with the announcement of a "super earth" found orbiting around the small red star LHS 1140.
The European Southern Observatory is calling it a "super-Earth" because the planet is both larger and heavier than Earth - its radius is about 40 percent greater than our planet and it is 6.6 times more massive.
This lava would have fed steam into the atmosphere, which eventually rained down as water over the course of billions of years, with the planet itself being around five billion years old. "We could hardly hope for a better target to perform one of the biggest quests in science: searching for evidence of life beyond Earth", he said.
When red dwarf stars are young, they are known to emit radiation that can be damaging for the atmospheres of the planets that orbit them.
A super-Earth is an extrasolar planet with a mass higher than Earth's, but substantially below the masses of the Solar System's giants, Uranus and Neptune, which contain 15 and 17 Earth masses respectively.
Another bit of good news is that terrestrial planet LHS 1140b as seen from earth passes nearly directly in front of its star, and that makes it a lot easier to do follow up research that Dittmann and his colleagues are already planning. The exoplanet is called LHS 1140b and is located just 39 light-years from Earth.
Saudi officers killed in helicopter crash in Yemen
Defense Secretary James Mattis arrives in Israel Thursday, following meetings Tuesday and Wednesday in Saudi Arabia and Egypt. Multiple rounds of U.N-brokered peace talks have failed to bridge the gap between the warring parties in Yemen.
Girl killed by shark while family watched her surf
The Esperance shire has closed Wylie Bay beach, with the WA Department of Fisheries planning to spend the day patrolling the area. After the shark severely mauled the teenager's left leg, she was brought to shore where she was reportedly unconscious.
LHS 1140b orbits in the HZ of its parent star, which is an important tick in the "can-host-liquid-water" column, but there are a myriad of other factors that could prevent the world from maintaining the vital asset. An orbiting planet's tiny gravitational tug causes its star to wobble - and that wobble can be used to calculate the planet's mass.
As LHS 1140 is much smaller and cooler than our own star, it doesn't throw out anything close to the levels of radiation that our Sun is capable of emitting.
Compared to Earth, the new planet is big, pushing near the size limit for rocky planets. Unfortunately, when scientists refer to to new discoveries like Proxima b and the seven-planet TRAPPIST-1 system as "potentially habitable", they're just referring to the bare-bones standards for that label. The planet was discovered in 2014 with the MEarth-South telescope array at Cerro Tololo Inter-American Observatory in Chile, using a method that measured the faint dimming of starlight as it passed across LHS 1140's disk.
In the future, they want to use HARPS to continue observing the star and see if there are more planets around it. These star types have become popular targets for exoplanet hunters, since they're also common throughout the galaxy and it's easier to spot planets around them. The new planet, designated LHS 1140b, has a diameter of around 11,000 miles.
'The LHS 1140 system might prove to be an even more important target for the future characterisation of planets in the habitable zone than Proxima b or TRAPPIST-1, ' two members of the worldwide team, Drs Xavier Delfosse and Xavier Bonfils, said.
However, it's possible that a planet like LHS 1140 b would have had a magma ocean for millions of years, which would have released water into the air and replenished the atmosphere long after the star had calmed down. The James Webb Space Telescope, which NASA plans to launch into space in 2018, could also search 1140b for ozone, which is made of oxygen.
Since the star it orbits is quite small and relatively close to us, it may be possible for current telescopes and those now under construction to determine if the planet has an atmosphere.
According to the California DMC, Apple has three 2015 Lexus RX crossovers registered through the autonomous driving permit. Alphabet Inc.'s Waymo and Uber Technologies Inc.'s self-driving test cars also have people behind the wheel during tests.
The gender-pay gap is about 20 percent, a serious difference, especially considering how many single moms there are in the U.S. The poverty rates for tipped workers are twice as high as the rates for workers overall, according to one study .
The UN Secretary-General Antonio Guterres condemned the decision as "threatening peace and undermining the two-state solution". Israel captured the West Bank, Gaza Strip and east Jerusalem in the June 1967 Mideast war.
A penalty from Lewandowski, an equaliser from Ronaldo and a shocking own goal from Ramos saw the tie level 3-3 on aggregate. Ronaldo appeared to be in front of the defenders, and just offside, for his first goal in extra time.
A source told People , "The cultural differences between [ Janet ] and Wissam became even more obvious [after Eissa arrived]". This tweet marks the first time Jackson has spoken since splitting from Al Mana over the weekend , according to People .
Other collaborators on the album include Pusha T, Mavis Staples, Jehnny Beth of Savages, De La Soul , D.R.A.M., and many more. In addition, Gorillaz will launch an interactive "spirit house" event in Manhattan at Industria from April 21 - 23.
The Easter Vigil in Eastern Orthodoxy especially solemn: it is the first official celebration of the Resurrection of Jesus. From decorating eggs to eating candy from pastel-colored Easter baskets, our favorite celebrities are celebrating Easter.
In-Ryong also cited USA military training drills with South Korean troops as "aggressive war exercises" promoting "real warfare". The vice president reiterated Monday that "all options are on the table" to deal with the threat posed by North Korea.
The U.S. says Assad's government carried out the attack , and it accuses Russian Federation of trying to deflect blame from Assad. Trump gave such criticism short shrift on Wednesday, saying: "I felt we had to do something about it".
He said he had last visited Morano on Friday, and she had talked to him and held his hand as she normally did. "She didn't suffer. Violet Brown , 117, of Jamaica, is now the oldest living person in the world, according to the Gerontology Research Group .
French police thwart attack days before election
The news comes as the people of France prepare to cast their votes on Sunday in the first stage of a two-part election. More than 230 people have died in Islamist militant attacks in the country over the past two years.
Police seek nursing student who drove part-time for Uber
Nursing student Krysten Laib was last seen Tuesday morning, a little before 5am - she was working as a part-time driver for Uber. A search remained underway Monday afternoon for the 45-year-old Abington woman. "She texted back, 'ya, OK, ' said Kelly".
You may have to start tipping your Uber driver
Uber assigns a cost for a booking fee, plus a per-mile cost and a per-minute cost that the driver makes for each ride. Conigliaro said that he thinks passengers will toss some extra money to drivers if they're given the option.
Tillerson Says US and Russia Remain Divided on Syria
But he renewed his demand that Nato's members boost military spending to at least two percent of gross domestic product. Describing the Syrian leader as a "butcher" he said he had "absolutely no doubt" the U.S. had done the "right thing".
Rod Carew's new heart, kidney came from late NFL player
Reuland didn't have a similarly successful National Football League career, but now, his memory will live on forever with Carew. Mary lost her dad and a 31-year-old sibling to heart assaults; Ralf's dad has gotten a stent and fights atrial fibrillation.
San Jose Sharks At Edmonton Oilers Game Thread
While the orange crush flooded Rogers Place , fans in matching jerseys streamed into bars and restaurants along Whyte Avenue. Cam Talbot made 41 saves for the Oilers , while Sharks goalie Martin Jones stopped 17 shots, majority in the first period.