Damaged Giant Radio Telescope at Arecibo Observatory Deemed Beyond Repair

22 Novembre, 2020, 01:24 | Auteur: Therese Cote
  • The Arecibo Observatory dish surrounded by forest

An auxiliary cable broke in August and tore a 100-foot hole in the reflector dish and damaged the dome above it.

The decommissioning plan focuses only on the 305-meter telescope and is meant to safely preserve other parts of the observatory that could be damaged or destroyed in the event of an unplanned, catastrophic collapse, NSF said.

Nestled in the humid forests of Arecibo, the Puerto Rican observatory's vast structure had been used by scientists and astronomers around the world for decades to analyze distant planets, find potentially hazardous asteroids and hunt for signatures of extraterrestrial life.

The telescope has been in operation for 57 years.

"Although it saddens us to make this recommendation, we believe the structure should be demolished in a controlled way as soon as pragmatically possible".

The NSF reviewed multiple assessments by independent engineering companies and concluded that the telescope structure was "in danger of a catastrophic failure" and its cables may no longer be capable of carrying the loads they were created to support.

Last week, one of the telescope's main steel cables that was capable of sustaining 544,000 kilograms snapped under only 283,000 kilograms. An assessment by the engineering firm of Thornton Tomasetti has determined that the radio dish and its 900-ton instrument platform are too unstable to be safely repaired. "It is therefore our recommendation to expeditiously plan for decommissioning of the observatory and execute a controlled demolition of the telescope".

Trump calls into virtual G20 summit, talks COVID-19 with world leaders
At the time, they vowed "to do whatever it takes to overcome the pandemic". The Turkish leader will address the summit via video link at 13:00 GMT.

Daniel Bryan Makes Big Change To His Look
WWE waited until the day of the SmackDown show to announce more things for the episode. PT on YouTube, Facebook, Twitter, Twitch, TikTok, and the award-winning WWE Network".

Again, Apple to pay $113m as settlement for throttling older iPhones
According to AJC.com , the judgment announced on Wednesday brings closure to the class-action suit brought by more than 30 states. Instead, the states said Apple benefited from customers - exhausted of slower, aging phones - purchasing new model iPhones.

Ralph Gaume, director of NSF's astronomy division, said at the briefing the agency wants to preserve other instruments at the site, as well as the visitor and outreach center.

"For almost six decades, the Arecibo Observatory has served as a beacon for breakthrough science and what a partnership with a community can look like", Panchanathan said. It has lasted for almost 57 years and provided valuable insights for many scientists across the world.

In the 1970s, it was used to beam a message about Earth and humanity into space, along with the National Radio Astronomy Observatory at Green Bank, West Virginia through a NASA program called Microwave Observing Program (MOP).

The telescope is one of the largest in the world and has been a tool for many astronomical discoveries.

"What I love the most about working with Arecibo is how it is a community institution; it has broadened Puerto Rican participation in science in immeasurable ways", says Puerto Rican astronomer Kevin Ortiz Ceballos via Twitter, and one of many whose admiration for the observatory inspired them to study the stars.

"I was hoping against hope that they would come up with some kind of solution to keep it open", he said. The Arecibo Observatory Amateur Radio Club, KP4AO, is headquartered at the research facility, and several radio amateurs are employed there. The cables were created to support a 900-ton platform 450 feet above the dish.

Conseillé:



Populaire

LEGO Star Wars Holiday Special
The directors are hoping to release the film just in time for next year's Life Day celebration. In an interview with Daniels, "No I'm never going to retire".

Bayern Munich 1-1 Werder Bremen: Eggestein helps visitors to deserved point
The win was a relief for Leverkusen goalkeeper Lukas Hradecky, who scored a embarrassing own goal early in the second half. Sargent held off Martínez's challenge and pulled the ball back for Eggestein to break the deadlock just before halftime.

Sunak mulls public sector pay freeze for millions
Public sector debt reached a record high of £2.08trn at the end of October, and Government borrowing swelled to £22.3bn. There are about 5.5 million public-sector workers, representing around 17 per cent of all workers in Britain.

Rumor: Gordon Hayward wants out of Boston, may opt-out of contract
Gordon Hayward has battled numerous injuries and not lived up to expectations since he signed with the Boston Celtics in 2017. Hayward appeared in 52 video games in the course of the 2019-20 season, averaging 17.5 factors and 6.5 rebounds per sport.

Le chargeur MagSafe Duo ne charge pas les iPhone à 15W
Pour le moment, il n'y a pas de date de sortie pour le chargeur MagSafe Duo, le site Web d'Apple indique simplement "à venir". Pire, pour s'en approcher, il faudra un adaptateur secteur encore plus puissant que les 20 W requis jusqu'ici.

Appel versera 113 millions de dollars après une série de poursuites !
Je m'engage à demander des comptes à ces entreprises de technologie goliath si elles dissimulent la vérité à leurs utilisateurs. Même si cette décision est arrivée après le scandale , cela a permis en quelque sorte de calmer les esprits.

'Black Panther' sequel to being shooting in July 2021
We also have our first bit of casting news, as Narcos: Mexico actor Tenoch Huerta is in talks to come aboard as the new villain. Those rumors have been dismissed by Marvel Studios , but the question remains as to how the Black Panther series will continue.

Michael J. Fox remembers that time he met Princess Diana
Unfortunately for Fox, he immediately had to go to the bathroom when the movie started: "I'm sitting there, like, dying". You might feel anxious while watching a movie together with a royal, and that is exactly what happened with Michael J.

John Wall seeking trade from Wizards
John Wall has requested a trade from the Washington Wizards front office after they explored trading him for Russell Westbrook . Westbrook is set to earn $41.3-million next season, which is slightly more than Wall's $41.2-million salary for 2020-21.

Prince Harry 'aware' of inquiry into BBC Diana interview
Diana, Princess of Wales with a young Prince William in the Royal Box on Centre Court at Wimbledon. Nearly 23 million people tuned in to watch the Panorama programme 25 years ago.