Adaptive optics lifts Earth's atmospheric veil to reveal a sharper cosmos
21 July, 2018, 16:56 | Author: Darnell Taylor
Located in Chile, the European Southern Observatory's Very Large Telescope (VLT) used what's known as laser tomography to capture test images of the planet and surrounding star clusters. With VLT's new capabilities, it is now possible to capture space images from the ground at visible wavelengths that are sharper than those from Hubble.
GALACSI had previously been able to work with the MUSE spectrograph to obtain wide field-of-view observations of the cosmos that were relatively free from atmospheric interference.
The telescope's Multi Unit Spectroscopic Explorer (MUSE) instrument works with what's called the GALACSI adaptive optics module.This allows the telescope to correct for turbulence at different altitudes in the atmosphere, resulting in some incredibly clear, sharp images captured from Earth.
There are two optics modes on the VLT - the narrow-field mode that can focus on small points of the sky with high precision, and the wide-field mode, that can do the same but only correct a kilometer-thick of atmosphere distortion.
The ESO says such sharpness is very hard to attain and allows images to be taken that are comparable in sharpness to those taken with the Hubble telescope that doesn't have to deal with the atmosphere at all. The narrow field mode is what's generating these incredibly sharp images of Neptune - it corrects nearly all of the turbulence above the telescope, but only over a smaller section of the sky.
Putin proposed eastern Ukraine vote to Trump in Helsinki
That performance set off a bipartisan backlash in Washington, forcing days of damage control efforts by an embattled West Wing. Trump has tweeted that he and Putin discussed Ukraine , but did not mention a referendum or provide details.
Having sharp images of things in space is important if you want to study what planets, stars, nebulae, and other things are made of and how they formed.
These atoms serve as laser guide stars, and the light they bounce back is used to measure atmospheric turbulence.
This isn't the observatory's first adaptive-optics rodeo: Another system, GRAAL, is already in use with infrared camera HAWK-I; in a few years, the powerful new ERIS instrument will follow suit.
It will enable astronomers to study in unprecedented detail fascinating objects such as supermassive black holes at the centres of distant galaxies, jets from young stars, globular clusters, supernovae, planets and their satellites in the Solar System and much more.
MUSE is not the only instrument to benefit from the Adaptive Optics Facility. These results on UT4 with the AOF will help to bring ELT's engineers and scientists closer to implementing similar adaptive optics technology on the 39-metre giant.
He also drew criticism over bad behaviour and multiple arrests, including charges that he severely beat and abused his girlfriend. Other evidence includes mobile phone video and photos with three of the suspects holding large amounts of money, police said.
Liverpool have won the English top-flight title 18 times in the past, but the most recent of those came in 1990. Following the completion of his move to Anfield on Thursday, Alisson now once again counts Salah as a teammate.
The one shot Woods would like to have back was the 13th, where he made a 15-foot putt for par. "So, yeah, I think it's important". He was nice to me. "He was nice to me". "Yeah I do (enjoy it), three-times major champion Spieth told reporters".
The sources think Stevie J knew if Faith started telling friends and family she was marrying him, they would talk her out of it. She collaborated with P Diddy on the huge hit I'll Be Missing You, which was dedicated to her late husband.
Pelosi demanded Trump apologize to the American people "for his disgraceful, risky and damaging behavior with Putin in Helsinki". Meanwhile, Secretary of State Mike Pompeo said Trump's goal was to "redirect" two countries "that'd been on a bad path".
He's also reminding people of that Article 5 has been invoked only once throughout its entire existence: in the aftermath of 9/11. Russian Federation was vehemently opposed to Montenegro's joining the alliance, issuing statements of opposition.
He added that China will "fully implement" United Nations sanctions resolutions, adding that "everyone" else should as well. On what the USA needs to see happen going forward, Pompeo said , laughing, "It is really pretty straightforward".
The proposals were developed by a dedicated, worldwide team of Holocene scientists led by Mike Walker of the University of Wales. The most recent phase, The Meghalayan Age , is based on the evidence of the climatic event found in sedimentary records.
It took the president several attempts to walk back his comments, amplifying the fallout from his joint appearance with Putin. The White House did ultimately object to one proposal from Putin to hand over two Americans, including former U.S.
Remains of 8 victims identified in Canada serial killer case
Idsinga said police are still receiving tips from around the world. "I don't know if it stops at eight (victims)", Idsinga said. Toronto police say they've now identified the remains of all eight men they believe were murdered by Bruce McArthur .
Celtics re-sign Smart to 4-year, $52 million deal
After the Celtics lost in Game 7 of the Eastern Conference finals, Smart said that he's worth "more than 12-14 million". While the 24-year-old wasn't flashy stats wise, that's not the reason why the franchise has given him an extension.
Sixers send Holmes to Suns, sign Bolden to 4-year deal
Holmes was selected by Philadelphia in the second round of the 2015 NBA Draft after three seasons at Bowling Green. The Hawks also sent Dennis Schroder to the Thunder while acquiring Anthony, who will be bought out.
Son Heung-min pens new five-year Spurs contract
Son agreed a five-year deal earlier on Friday and Lamela has also agreed to extend his time at Tottenham by signing fresh terms. Erik Lamela is hoping his new Tottenham contract brings a change in fortune after his troubles with injury.