News / Science & Technology

Large Asteroid to Pass Near Earth in November

This image of another near-Earth asteroid 433 Eros reveals that its ancient surface has been scarred by numerous collisions with other small objects
This image of another near-Earth asteroid 433 Eros reveals that its ancient surface has been scarred by numerous collisions with other small objects

The U.S. space agency, NASA, says an asteroid measuring 400 meters in diameter will pass the Earth within the orbit of the moon in November, giving scientists their best opportunity so far to closely observe a space rock this large.

Asteroid 2005 YU55 is classified as a potentially hazardous Near-Earth Object, but NASA says it poses no threat for at least the next 100 years.  Astronomers say the asteroid will fly past the Earth November 8 within a distance of only 326,400 kilometers. That is 15 percent closer to the planet than the moon.   

NASA is eagerly preparing for the asteroid’s approach with plans for a wide variety of radar, visual and infrared observations, including using the radar capabilities at its Deep Space Network facility in Goldstone, California, and the huge Arecibo dish in Puerto Rico.  

The space agency says the next known close fly-by to rival asteroid 2005 YU55 will not occur for 17 years, in 2028, when a different asteroid will pass within 230,400 kilometers of the Earth.

Astronomers working on the Spacewatch project at the University of Arizona’s Tucson Lunar and Planetary Laboratory discovered asteroid 2005 YU55 in December 2005.

Asteroids are made of materials, such as rock, ice and metals, that were left over after the planets formed 4.6 billion years ago.  Besides looking for ways of protecting the Earth from deadly collisions, scientists study asteroids to learn more about the origins and diversity of the planets in the solar system, as well as the origin of life.  Human spaceflight one day might include visiting asteroids or even mining them for valuable metals and other resources.

The average distance from the Earth to the moon is about 384,000 kilometers.  The actual distance at any particular time varies because the Moon travels in an elliptical orbit around the sun. The moon’s distance from the Earth can range from a perigee (closest point) of 363,100 kilometers to an apogee (farthest point) of 405,700 kilometers.

You May Like

Philippines, Muslim Rebels Try to Salvage Peace Pact

Peace process faces major setback after botched military operation to find terrorists results in bloody gunbattle between government forces, Moro Islamic Liberation Front fighters More

Republicans Expect Long, Expensive Presidential Battle

Political strategist says eventual winner will be one who can put together strongest coalition of various conservative groups that make up Republican Party More

Video New Wheelchair Is Easier to Use, Increases Mobility

Engineers have come up with a lever-operated design that makes use of easily accessible bicycle technology More

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.
Liberia's Almost Last Ebola Patient Grateful but Still Grievingi
X
Benno Muchler
March 26, 2015 3:41 PM
Beatrice Yardolo was to make history as Liberia’s last Ebola patient. Liberians recently started counting down 42 days, the period that has to go by without a single new infection until the World Health Organization can declare a country Ebola-free. That countdown stopped on March 20 when there was another new case of Ebola, making Yardolo’s story a reminder that Ebola is far from over. Benno Muchler reports from Monrovia.
Video

Video Liberia's Almost Last Ebola Patient Grateful but Still Grieving

Beatrice Yardolo was to make history as Liberia’s last Ebola patient. Liberians recently started counting down 42 days, the period that has to go by without a single new infection until the World Health Organization can declare a country Ebola-free. That countdown stopped on March 20 when there was another new case of Ebola, making Yardolo’s story a reminder that Ebola is far from over. Benno Muchler reports from Monrovia.
Video

Video Cambodian Land Grabs Threaten Traditional Communities

Indigenous communities in Cambodia's Ratanakiri province say the government’s economic land concession policy is taking away their land and traditional way of life, making many fear that their identity will soon be lost. Local authorities, though, have denied this is the case. VOA's Say Mony went to investigate and filed this report, narrated by Colin Lovett.
Video

Video US, South Korea Conduct Joint Military Exercises

The Eighth U.S. Army Division and the Eighth Republic of Korea Mechanized Infantry Division put on a well orchestrated show of force for the media this week during their joint military training exercises in South Korea. VOA’s Seoul correspondent Brian Padden was there and reports the soldiers were well disciplined both in conducting a complex live fire exercise and in staying on message with the press.
Video

Video Space Program Status Disappoints 'Last Man on the Moon'

One of the films that drew big crowds last week at the annual South by Southwest festival in Austin, Texas, tells the story of the last human being to stand on the moon, U.S. astronaut Eugene Cernan. It has been 42 years since Cernan returned from the moon and he laments that no one else has gone there since. VOA’s Greg Flakus reports.
Video

Video Young Filmmakers Shine Spotlight on Giving Back

A group of student filmmakers from across the United States joined President Barack Obama at the White House this month for the second annual White House Student Film Festival. Fifteen short films were officially selected from more than 1,500 entries by students aged 6 through 18. The filmmakers and their families then joined the president and a group of celebrities for a screening of their films. VOA’s Julie Taboh reports.
Video

Video VOA Exclusive: Interview with Afghan President Ashraf Ghani

Afghan President Ashraf Ghani, during his first visit as president to Washington, gave a one-on-one interview with VOA Afghan Service reporter Said Suleiman Ashna, about his request for a change in U.S. troop levels, the threat from the Islamic State, and repairing relations with the United States and Pakistan. The interview was held at Blair House, late Sunday, in Pashto.
Video

Video California Science Center Tells Story of Dead Sea Scrolls

The ancient manuscripts were uncovered in the mid-20th century, and they are still yielding clues about life and religious beliefs in ancient Israel. As VOA's Mike O'Sullivan reports, an exhibit in Los Angeles shows how modern science is bringing the history of these ancient documents to life.
Video

Video Angelina Jolie Takes Another Bold Step

Hollywood actress and filmmaker Angelina Jolie has revealed she had her ovaries and fallopian tubes removed to lower her odds of getting cancer. Doctors say the huge publicity over her decision will help raise awareness about the importance of cancer screening. VOA’s George Putic has more

All About America

Circumventing Censorship

An Internet Primer for Healthy Web Habits

As surveillance and censoring technologies advance, so, too, do new tools for your computer or mobile device that help protect your privacy and break through Internet censorship.
More