Saturday, 20 April, 2019


NASA says one of Hubble's best cameras is busted

Artist's impression showing how J043947.08+163415.7 may look close Image Artist's impression showing how J043947.08+163415.7 may look close
Kristine Garrett | 13 January, 2019, 20:13

The operations of the Hubble Space Telescope's most technologically advanced camera have been suspended after it encountered a hardware problem, NASA said.

"The detection of this peculiar source in the faraway universe is a major discovery for a surprising reason", said Yale postdoctoral associate Fabio Pacucci, co-author of a study which will be published in The Astrophysical Journal Letters, as well as lead author of a follow-up paper on the theoretical implications of the discovery.

The powerful glow of a quasar is created by a supermassive black hole which is surrounded by an accretion disc. There are hopes it could provide an insight into the birth of galaxies. As astronomers look farther into space in terms of distance, it allows them to look farther back in time, closer to the time of the Big Bang.

The quasar existed at a transitional period in the universe's evolution, called reionization, where light from young galaxies and quasars reheated the obscuring hydrogen that cooled off not long after the Big Bang.

"Prior to this, no stars, quasars, or galaxies had been formed, until objects like this appeared like candles in the dark".

Readings from the object show it to have brightness equivalent to 600trn suns (yes, you read that correctly), with the supermassive black hole powering it being several hundred million times as massive as the sun.

Astronomers said it is by far the brightest quasar yet discovered in the early universe.

Astronomers generally avoid looking for quasars in this region, because the abundance of stars and dust there drown out the faint quasar light. It has the capability of spanning the electromagnetic spectrum from the ultraviolet through visible light and into the near-infrared.

"We don't expect to find many quasars brighter than that in the whole observable universe". "But we are still figuring out what the right path forward is". This is due to hot dust heated by intense star formation in the galaxy hosting the lensed quasar.

The data readings suggest that the supermassive black hole is accreting matter at an extremely high rate, yet the quasar is producing as many as 10,000 stars per year.

Scientists will begin gathering data on the quasar including using the European Southern Observatory's Very Large Telescope to try to identify the chemical composition and temperatures of intergalactic gas in the early universe.

Going forward, the highly anticipated (and oft-delayed ) James Webb Space Telescope is expected to take some of the burden off of Hubble, but at this point it's hard to know when that spacecraft will actually make it into orbit.

Recommended

loading...
...
  • Amazon Developing Cloud Gaming Service

    Amazon Developing Cloud Gaming Service

    Amazon is already one of the world's leading video game retailers, but it may soon have an even larger presence in the market. Thanks to the prevalence of Amazon's AWS datacentres, they have the necessary infrastructure to make game streaming viable.
    How to watch, stream Sunday's Patriots-Chargers game

    How to watch, stream Sunday's Patriots-Chargers game

    Chargers spread to jump on, all from a Vegas legend on a profit-making 20-8 run on picks involving these two teams . I thank God every day and still pray". "No matter where I am, I still think about her".
    R Kelly interviewed by police over allegations of 'keeping two women hostage'

    R Kelly interviewed by police over allegations of 'keeping two women hostage'

    On Jan. 7, the day after the series ended, Kelly's songs were played on radio 198,000 times. Even as he denied the allegations, Greenberg said he didn't know details about them.
  • Sarri seeks reinforcements as Chelsea strengthen grip on fourth

    Sarri seeks reinforcements as Chelsea strengthen grip on fourth

    Sarri's side took the lead through Pedro's early goal, but Ciaran Clark snatched a shock equaliser before half-time. " Jorginho was in trouble and on the bench there wasn't a player for that position", said Sarri.
    Arsenal boss Unai Emery reveals big concern after West Ham defeat

    Arsenal boss Unai Emery reveals big concern after West Ham defeat

    What does it mean? Unai Emery has admitted that he is concerned by Arsenal's away form this season following today's 1-0 defeat to West Ham.
    Flu Cases In Montana 'A Little Below Average' So Far This Season

    Flu Cases In Montana 'A Little Below Average' So Far This Season

    The Doctors Association Kashmir (DAK) has already advised people to take precautions to protect themselves from the flu . Givelichian said another six children in the province have been treated for influenza in intensive-care units.
  • Costco is selling a 26-pound bucket of mac and cheese

    Costco is selling a 26-pound bucket of mac and cheese

    HealthTechSavvy also raved about the mac and added: 'I was surprised. "Honestly, I was expecting something that tasted awful . Good news! Costco came up with a way to combine all of the above in their 27-pound bucket of macaroni and cheese.
    7 dead, 5 critical in Cuban bus crash

    7 dead, 5 critical in Cuban bus crash

    The Foreign Office confirmed two British nationals were injured on the bus, but their condition is not known. The bus was travelling from Baracoa to the capital, Havana, when it crashed near Guantánamo on Thursday.
    Tennis match-fixing gang dismantled in Spain

    Tennis match-fixing gang dismantled in Spain

    The criminal group is reported to have bribed registered professional tennis players, seeking to guarantee predetermined results. Europol said the players threw matches after taking bribes from an Armenian crime group.
  • Samsung unveils massive 219 inch TV called ‘The Wall’

    Samsung unveils massive 219 inch TV called ‘The Wall’

    And this year's main attraction was the launch of new TVs by popular brands like LG, Samsung , Sony, and Panasonic. Expect imitators, and hope we see some affordable versions of the technology down the line, however long it takes.
    Study details how high fiber diets make for healthier lives

    Study details how high fiber diets make for healthier lives

    Foods with a low glycaemic index or low glycaemic load may also contain added sugars, saturated fats, and sodium. But it adds that for people with an iron deficiency, high levels of whole grains can further reduce iron levels.
    BREXIT: Cabinet to consider ramping up no-deal plans

    BREXIT: Cabinet to consider ramping up no-deal plans

    In his response to Mrs May, Mr Corbyn said that the Government had been "dragged kicking and screaming" into announcing when the vote would take place.

Art is unsafe in the Velvet Buzzsaw Trailer Art is unsafe  in the Velvet Buzzsaw Trailer Velvet Buzzsaw is the newest horror movie from Netflix Canada, but I'm not sure that it's supposed to be a horror movie. Because, seriously, what else is an art critic supposed to do with their time? All art is unsafe .

Protests in Sudan leave at least 24 dead Protests in Sudan leave at least 24 dead A group of doctors from the hospital, as well as Amnesty, said that police fired tear gas and live ammunition at the facility. According to Human Rights Watch at least 40 people have been killed in clashes during the anti-government demonstrations.

Vicky Kaushal recreates Priya Prakash Varrier’s wink and our heart is melting! Vicky Kaushal recreates Priya Prakash Varrier’s wink and our heart is melting! The film stars Vicky Kaushal, Yami Gautam , Kirti Kulhari, Mohit Raina and Paresh Rawal in key roles. The fact that it got released ahead of 2019 elections, has made many label it as a propaganda film.

How to disable reserved storage in Windows 10 How to disable reserved storage in Windows 10 The 7GB Reserved Storage space could get adjusted "based on diagnostic data or feedback", Microsoft's announcement noted . This is especially important for devices with limited storage space, and have nearly all of them used up.

Theresa May faces confidence vote in her Government soon, Jeremy Corbyn warns Theresa May faces confidence vote in her Government soon, Jeremy Corbyn warns We ignore that and the will of the people at our peril". "We will do everything we can to prevent a no deal exit". The vexed Brexit issue represents Britain's biggest shift in foreign and trade policy in more than 40 years.

Snow brings parts of Europe to standstill Snow brings parts of Europe to standstill Max's death occurred as once-in-a-generation heavy snowfall continues to paralyse travel and tourism in parts of the Alps. An Australian family's winter holiday has ended in tragedy after a teenager was killed while skiing in Austria .

Pompeo confident of good outcome for Turkey and Kurds Pompeo confident of good outcome for Turkey and Kurds US airstrikes against IS in Syria began in September 2014, and ground troops moved in the following year in small numbers. The decision sent shockwaves through the White House, causing Defense Secretary James Mattis to resign in protest.

More AMD Radeon GPUs Coming Soon; Vega VII Specs Detailed More AMD Radeon GPUs Coming Soon; Vega VII Specs Detailed Under the hood, it's still the same Vega architecture that led to the disappointing reception of RX Vega 64 and Vega 56. Speaking with press this week at CES , Huang said, " The performance is lousy and there's nothing new ".

Congresswoman's Campaign Fined for Lapsed Comp Congresswoman and Westchester County high school graduate Alexandria Ocasio-Cortez is embroiled in a new controversy. She's repeatedly stated her support for legalization and advocated to fix the harms caused by the War on Drugs .

AT&T will stop selling location data amid calls for federal investigation AT&T will stop selling location data amid calls for federal investigation We're doing it the right way to avoid impacting consumers who use these types of services for things like emergency assistance. Ron Wyden (D-Ore.) wrote, "This information could be obtained by anyone: a stalker, an ex, or a child predator".

Maduro Inauguration: Nicolas Maduro sworn in as Venezuela president Maduro Inauguration: Nicolas Maduro sworn in as Venezuela president A wave of protests driven by the opposition swept the country in 2017, Zuniga says. Maduro has managed to retain allies in Latin America, despite worldwide outcry.

Ivanka Trump Is 'Being Considered' For a Different Role In The Administration Ivanka Trump Is 'Being Considered' For a Different Role In The Administration The US prevailed in selecting its preferred candidate over challengers from Nigeria and Colombia, but the process was grueling. World Bank CEO Kristalina Georgieva will serve as interim president.

Five Israeli soldiers held in alleged revenge beating of Palestinian suspects Five Israeli soldiers held in alleged revenge beating of Palestinian suspects He warned that this road plan could lead to the expulsion of Khan Al-Ahmar village and more than 21 other Palestinian communities. Qaysi says the road has cut his journey to the neighbouring village of Anata to a few minutes instead of half an hour or more.

Ex-Clippers F Griffin scores 44 in Pistons' win Ex-Clippers F Griffin scores 44 in Pistons' win You can't blame Griffin if he did not want to reminisce with Ballmer about his time in Los Angeles , which ended on a bad note. Griffin averaged 21.6 points, 9.3 rebounds and 4.2 assists in 8 seasons in Los Angeles .

Nadal ready to let rip remodelled serve at Australian Open Nadal ready to let rip remodelled serve at Australian Open And 14-time major victor Djokovic hailed Murray in an Instagram post on the eve of the Australian Open in Melbourne . It's not an obligation for me, I do it being willingness and I feel comfortable in doing it.