News / Science & Technology

    Massive Volcano Erupts on Jupiter's Moon, Io

     In this computer-enhanced picture from Voyager 1 taken in 1979, blue plume on the horizon consists of material hurled upward from volcano to more than 150 kilometers (about 90 miles) above Io's blotchy red-orange landscape.
    In this computer-enhanced picture from Voyager 1 taken in 1979, blue plume on the horizon consists of material hurled upward from volcano to more than 150 kilometers (about 90 miles) above Io's blotchy red-orange landscape.

    Related Articles

    Video Sun on Verge of Massive Flip

    Switches in sun's magnetic field happen about once every 11 years, solar physicists say

    Video NASA Maps Global Spread of Chelyabinsk Meteor Plume

    Withing four days, the plume had snaked its way entirely around the Northern Hemisphere and back to Chelyabinsk

    Evidence Found of Water Deep Below Lunar Surface

    The findings represent the first detection of water from lunar orbit
    Jupiter’s moon Io is the most volcanic body in the solar system, and astronomers recently witnessed an eruption bigger than any ever recorded on Earth.

    Dr. Imke de Pater, professor of astronomy and planetary science at the University of California in Berkeley spotted the eruption on August 15, using the Keck II telescope on Mauna Kea in Hawaii.

    The eruption took place in the Rarog Patera area of Io, which is 628,300,000 kilometers away from Earth. The area is not known to be particularly active with volcanoes, but is believed to have fountains of lava streaming from fissures on Io’s surface. The region is named after the Czech fire god.

    The eruption was “way bigger than anything in recorded history on Earth,” de Pater said, adding that the Rarog Patera eruption was likely 100 to 500 times larger than any of the bigger eruptions here on Earth in recent decades.

    According to Ashley Davies of NASA's Jet Propulsion Laboratory in Pasadena, California, the Io eruption emitted about 17,000 times more energy than typically produced by Hawaii’s Kilauea, Earth’s most active volcano.

    De Pater said the eruption offers a chance to better understand Io’s volcanic activity.

    “There are many things we hope to learn from eruptions like these,” she said. “At this point, we don’t know how long they last -- hours, days, weeks, months.”

    Scientists believe the amount of volcanic activity on Io is the result of a gravitational tug of war between Jupiter and some of the massive planet’s other moons.

    Data and imagery of the eruption will be released in a forthcoming paper, de Pater said.

    You May Like

    Clinton, Trump and the 'Woman’s Card'

    Ask supporters of Democratic front-runner in US presidential campaign, and they’ll tell you Republican presidential candidate is playing a dangerous hand

    Russian Censorship Group Seeks Chinese Help to Better Control Internet

    At recent Safe Internet League forum in Moscow, speakers from both nations underscored desire for authorities to further limit and control information online

    Video Makeshift Pakistani School Helps Slum Kids

    Free classes in Islamabad park serve a few of the country’s nearly 25 million out-of-school youths; NGO cites ‘education crisis’

    This forum has been closed.
    Comments
         
    There are no comments in this forum. Be first and add one

    Featured Videos

    Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
    Turkish Kurd Islamist Rally Stokes Tensionsi
    X
    April 29, 2016 12:28 AM
    In a sign of the rising power of Islamists in Turkey, more than 100,000 people recently gathered in Diyarbakir, the main city in Turkey’s predominantly Kurdish southeast, to mark the birthday of the Prophet Muhammad. The gathering highlighted tensions with the pro-secular Kurdish nationalist movement. Dorian Jones reports from Diyarbakir.
    Video

    Video Turkish Kurd Islamist Rally Stokes Tensions

    In a sign of the rising power of Islamists in Turkey, more than 100,000 people recently gathered in Diyarbakir, the main city in Turkey’s predominantly Kurdish southeast, to mark the birthday of the Prophet Muhammad. The gathering highlighted tensions with the pro-secular Kurdish nationalist movement. Dorian Jones reports from Diyarbakir.
    Video

    Video Pakistani School Helps Slum Kids

    Master Mohammad Ayub runs a makeshift school in a public park in Islamabad. Thousands of poor children have benefited from his services over the years, but, as VOA's Ayesha Tanzeem reports, roughly 25 million school-age youths don't get an education in Pakistan.
    Video

    Video Florida’s Weeki Wachee ‘Mermaids’ Make a Splash

    Since 1947, ‘mermaids’ have fascinated tourists at central Florida’s Weeki Wachee Springs State Park with their fluid movements and synchronized ballet. Performing underwater has its challenges, including cold temperatures and a steady current, as VOA’s Lin Yang and Joseph Mok report.
    Video

    Video Somali, African Union Forces Face Resurgent Al-Shabab

    The Islamic State terror group claimed its first attack in Somalia earlier this week, though the claim has not been verified by forces on the ground. Meanwhile, al-Shabab militants have stepped up their attacks as Somalia prepares for elections later this year. Henry Ridgwell reports there are growing frustrations among Somalia’s Western backers over the country’s slow progress in forming its own armed forces to establish security after 25 years of chaos.
    Video

    Video Bangladesh Targeted Killings Spark Wave of Fear

    People in Bangladesh’s capital are expressing deep concern over the brutal attacks that have killed secular blogger, and most recently a gay rights activist and an employee of the U.S. embassy. Xulhaz Mannan, an embassy protocol officer and the editor of the country’s only gay and transgender magazine Roopban; and his friend Mehboob Rabbi Tanoy, a gay rights activist, were hacked to death by five attackers in Mannan’s Dhaka home earlier this month.
    Video

    Video Documentary Tells Tale of Chernobyl Returnees

    Ukraine this week is marking the 30th anniversary of the world's worst nuclear accident, at the Chernobyl nuclear power plant. Soviet officials at first said little about the accident, but later evacuated a 2,600-square-kilometer "exclusion zone." Some people, though, came back. American directors Holly Morris and Anne Bogart created a documentary about this faithful and brave community. VOA's Tetiana Kharchenko reports from New York on "The Babushkas of Chernobyl." Carol Pearson narrates.
    Video

    Video Nigerians Feel Bite of Buhari Economic Policy

    Despite the global drop in the price of oil, Nigerian President Muhammadu Buhari has refused to allow the country's currency to devalue, leading to a shortage of foreign exchange. Chris Stein reports from Lagos businessmen and consumers are feeling the impact as the country deals with a severe fuel shortage.
    Video

    Video  Return to the Wild

    There’s a growing trend in the United States to let old or underused golf courses revert back to nature. But as Erika Celeste reports from one parcel in Grafton, Ohio, converting 39 hectares of land back to green space is a lot more complicated than just not mowing the fairway.
    Video

    Video West Urges Unity in Libya as Migrant Numbers Soar

    The Italian government says a NATO-led mission aimed at stemming the flow of migrants from Libya to Europe could be up and running by July. There are concerns that the number of migrants could soar as the route through Greece and the Balkans remains blocked. Western powers say the political chaos in Libya is being exploited by people smugglers — and they are pressuring rival groups to come together under the new unity government. VOA's Henry Ridgwell reports.
    Video

    Video Russia’s TV Rain Swims Against Tide in Sea of Kremlin Propaganda

    Russia’s media freedoms have been gradually eroded under President Vladimir Putin as his government has increased state ownership, influence, and restrictions on critical reporting. Television, where most Russians get their news, has been the main target and is now almost completely state controlled. But in the Russian capital, TV Rain stands out as an island in a sea of Kremlin propaganda.

    Special Report

    Adrift The Invisible African Diaspora