News / Science & Technology

    Moon Hit By Largest Meteoroid Impact in 8 Years

    On May 17, NASA witnessed the largest impact of a meteoroid on the Moon in the past eight years. This is an artist's rendition.On May 17, NASA witnessed the largest impact of a meteoroid on the Moon in the past eight years. This is an artist's rendition.
    x
    On May 17, NASA witnessed the largest impact of a meteoroid on the Moon in the past eight years. This is an artist's rendition.
    On May 17, NASA witnessed the largest impact of a meteoroid on the Moon in the past eight years. This is an artist's rendition.
    VOA News
    The U.S. space agency, NASA, has just spotted the biggest explosion on the Moon in the eight years since the agency has been monitoring lunar impacts caused by meteoroids.

    "On March 17, 2013, an object about the size of a small boulder hit the lunar surface in Mare Imbrium," said Bill Cooke of NASA's Meteoroid Environment Office. "It exploded in a flash nearly 10 times as bright as anything we've ever seen before."

    The meteoroid, which weighed an estimated 40 kilograms and was just over a third of a meter wide, hit the Moon at a speed of 90,000 kilometers per hour. NASA said it packed the explosive equivalent of five tons of TNT.

    Cooke believes the lunar impact might have been part of a much larger event.

    "On the night of March 17, NASA and University of Western Ontario all-sky cameras picked up an unusual number of deep-penetrating meteors right here on Earth," he said. "These fireballs were traveling along nearly identical orbits between Earth and the asteroid belt."

    The blast on the moon was so bright that anyone looking at Earth’s closest neighbor at the time of impact could have seen the explosion without a telescope.

    NASA plans to investigate the impact site with Lunar Reconnaissance Orbiter the next time the spacecraft passes over the site. NASA says the crater could be as wide as 20 meters.

    Since the Moon lacks an atmosphere, meteors crash onto the lunar surface with frequency. NASA said more than half of all lunar meteors come from known meteoroid streams such as the Perseid and Leonid meteor showers.

    Hundreds of detectable lunar impacts occur every year, NASA said.

    Here's a video about the explosion:

    You May Like

    Wife of IS Leader Charged in Death of US Hostage

    Suspect allegedly admitted to being responsible for American aid worker Kayla Mueller, who officials say was sexually abused and ‘owned’ by one IS member

    Year of the Monkey Could Prove Economic Balancing Act for China

    China is up against a tricky situation on the financial front, facing the need to fight capital flight while also stopping a further slide of foreign currency reserves

    Runners Attempt 26-mile South Pole Marathon in Sub-Zero Temperatures

    How alluring is running 26.2 miles at 10,000 feet when it’s minus 31 Celsius out?

    This forum has been closed.
    Comment Sorting
    Comments
         
    by: Co from: W
    May 22, 2013 10:22 AM
    why this website's article doesn't link to download video ? (have only to see video)

    by: Yoshi from: Sapporo
    May 21, 2013 10:18 PM
    The moon must be feeling "ouch". I wonder this largest meteoroid has made any crater. I would like to see the scene when a large crater which can be seen with the naked eyes from the earth is created. But I am afraid it means some unfavorable effect would be given to the earth.

    by: Kitagawa Keikoh from: Daikanyama
    May 18, 2013 7:27 PM
    It's very interesting that NASA has been monitoring lunar impact.
    These kind of impacts has been occurring with frequently and it makes sense that's because there is no air on the surface of the moon.
    It means we will not be able to build lunar bases on the moon. It should be under ground.

    by: chinese people
    May 18, 2013 10:55 AM
    中国万岁

    Featured Videos

    Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
    'No Means No' Program Targets Sexual Violence in Kenyai
    X
    February 08, 2016 4:30 PM
    The organizers of an initiative to reduce and stop rape in the informal settlements around Kenya's capital say their program is having marked success. Girls are taking self-defense classes while the boys are learning how to protect the girls and respect them. Lenny Ruvaga reports from Nairobi.
    Video

    Video 'No Means No' Program Targets Sexual Violence in Kenya

    The organizers of an initiative to reduce and stop rape in the informal settlements around Kenya's capital say their program is having marked success. Girls are taking self-defense classes while the boys are learning how to protect the girls and respect them. Lenny Ruvaga reports from Nairobi.
    Video

    Video New Hampshire Voters Are Independent, Mindful of History

    Once every four years, the northeastern state of New Hampshire becomes the center of the U.S. political universe with its first-in-the-nation presidential primary. What's unusual about New Hampshire is how seriously the voters take their role and the responsibility of being among the first to weigh in on the candidates.
    Video

    Video Chocolate Lovers Get a Sweet History Lesson

    Observed in many countries around the world, Valentine’s Day is sometimes celebrated with chocolate festivals. But at a festival near Washington, the visitors experience a bit more than a sugar rush. They go on a sweet journey through history. VOA’s June Soh takes us to the festival.
    Video

    Video 'Smart' Bandages Could Heal Wounds More Quickly

    Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded microsensors could turn bandages into a much more valuable tool for emergency physicians. VOA’s George Putic reports.
    Video

    Video Bhutanese Refugees in New Hampshire Closely Watching Primary Election

    They fled their country and lived in refugee camps in neighboring Nepal for decades before being resettled in the northeastern U.S. state of New Hampshire -- now the focus of the U.S. presidential contest. VOA correspondent Aru Pande spoke with members of the Bhutanese community, including new American citizens, about the campaign and the strong anti-immigrant rhetoric of some of the candidates.
    Video

    Video Researchers Use 3-D Printer to Produce Transplantable Body Parts

    Human organ transplants have become fairly common around the world in the past few decades. Researchers at various universities are coordinating their efforts to find solutions -- including teams at the University of Pennsylvania and Rice University in Houston that are experimenting with a 3-D printer -- to make blood vessels and other structures for implant. As VOA’s Greg Flakus reports from Houston, they are also using these artificial body parts to seek ways of defeating cancerous tumors.
    Video

    Video Helping the Blind 'See' Great Art

    There are 285 million blind and visually impaired people in the world who are unable to enjoy visual art at a museum. One New York photographer is trying to fix this situation by making tangible copies of the world’s masterpieces. VOA correspondent Victoria Kupchinetsky was there as visually impaired people got a feel for great art. Joy Wagner narrates her report.
    Video

    Video Sanders, Clinton Battle for Young Democratic Vote

    Despite a narrow loss to former Secretary of State Hillary Clinton in last week's Iowa Democratic caucuses, Vermont Senator Bernie Sanders secured more than 80 percent of the vote among those between the ages of 18 and 29. VOA correspondent Aru Pande talks to Democrats in New Hampshire about who they are leaning towards and why in this week's primary.
    Video

    Video German Artists to Memorialize Refugees With Life Jacket Exhibit

    Sold in every kind of shop in some Turkish port towns, life jackets have become a symbol of the refugee crisis that brought a million people to Europe in 2015.  On the shores of Lesbos, Greece, German artists collect discarded life jackets as they prepare an art installation they plan to display in Germany.  For VOA, Hamada Elrasam has this report from Lesbos, Greece.
    Video

    Video E-readers Help Ease Africa's Book Shortage

    Millions of people in Africa can't read, and there's a chronic shortage of books. A non-profit organization called Worldreader is trying to help change all that one e-reader at a time. VOA’s Deborah Block tells us about a girls' school in Nairobi, Kenya where Worldreader is making a difference.
    Video

    Video Genius Lets World Share Its Knowledge

    Inspired by crowdsourcing companies like Wikipedia, Genius allows anyone to edit anything on the web, using its web annotation tool
    Video

    Video In Philippines, Mixed Feelings About Greater US Military Presence

    In the Philippines, some who will be directly affected by a recent Supreme Court decision clearing the way for more United States troop visits are having mixed reactions.  The increased rotations come at a time when the Philippines is trying to build up its military in the face of growing maritime assertiveness from China.  From Bahile, Palawan on the coast of the South China Sea, Simone Orendain has this story.
    Video

    Video Microcephaly's Connection to Zika: Guilty Until Proven Innocent

    The Zika virus rarely causes problems for the people who get it, but it seems to be having a devastating impact on babies whose mothers are infected with Zika. VOA's Carol Pearson has more.
    Video

    Video Stunning Artworks Attract Record Crowds, Thanks to Social Media

    A new exhibit at the oldest art museum in America is shattering attendance records. Thousands of visitors are lining up to see nine giant works of art that have gotten a much-deserved shot of viral marketing. The 150-year-old Smithsonian American Art Museum has never had a response quite like this. VOA's Julie Taboh reports.