News / Science & Technology

NASA: Humans Could Visit Asteroid in 2021

NASA: Humans Could Visit Asteroid in 2021i
X
June 19, 2013 12:51 AM
The U.S. space agency says its proposed asteroid capture mission takes several of NASA's ongoing initiatives and aligns them for one major mission. VOA's Suzanne Presto went to NASA headquarters in Washington and has the latest about the proposal to capture, move and ultimately visit an asteroid.
Suzanne Presto
The U.S. space agency says its proposed asteroid capture mission takes several of NASA's ongoing initiatives and aligns them for one major mission.  

These chunks of ancient space rocks hold clues about the formation of the universe, pose threats to our planet, and present new territory for explorers.
NASA's proposed asteroid mission is a logical next leap for the space agency, says associate administrator for human exploration and operations Bill Gerstenmaier.

"It essentially fits right with what we were doing already.  This whole mission activity captures a lot of what we were doing before.  It captures the observation things.  It captures the electric propulsion, and it captures and utilizes our Orion [capsule] and SLS [rocket] just as it was envisioned," said Gerstenmaier.

Astronomers already are identifying and tracking near-Earth asteroids in an attempt to find potential threats, which will help as NASA chooses a target.

And the space agency's engineers are working on propulsion technologies that use sunlight to efficiently produce low thrust, reducing the amount of propellant needed for such a mission.
        
"We're going to capture and redirect a 7-10 meter, approximately 500-ton near-Earth asteroid to a stable orbit in translunar space, probably a deep retrograde orbit around the moon, and this will enable an astronaut mission to the asteroid as early as 2021," said Gerstenmaier.

A successful mission would show that humans can alter an asteroid's path, and be useful if one is found to be a danger to Earth.  

NASA says there is no threat to our planet if something goes wrong during this capture mission, because an asteroid this size would disintegrate before it struck the planet.  

Gerstenmaier says lunar orbit is stable enough that the asteroid possibly could stay in place for a century.

"So once we get the spacecraft and the object in this orbit, it's there for us to go visit multiple times in the future," he said.

Astronauts could use the Space Launch System and Orion space capsule that are being developed. Space explorers could spend about five days near the asteroid and venture out of the Orion capsule to collect samples that would be returned to Earth.   

Gerstenmaier says this will give astronauts and mission control experience working in deep space, far from Earth and the International Space Station.  
"In this case, we're going to have to make sure we have the right abort scenarios, the right redundancy in place, that we can tolerate being in this situation for up to five days.  So that helps us take a step toward the bigger missions that we want to do going forward," he said.

Bigger missions such as a manned voyage to Mars in the 2030s.

You May Like

Afghan Government Says Taliban Leader Mullah Omar Died in 2013

update President Ashraf Ghani's office confirms Omar died in 2013, although Taliban sources continue to deny reclusive leader has been dead for more than two years More

Erdogan in China Amid Tensions on Uighurs, Missile System

Turkey's president has criticized China's heavy-handed policies toward Uighurs in violence-plagued Xinjiang region, where China says it is fighting foreign-backed separatists More

Critics: China’s President Using Law to Tighten Grip on Power

President Xi, who has stressed importance of 'rule of law' and law-based governance, has exerted increasingly tighter grip over society since coming to office More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Russia Accused of Abusing Interpol to Pursue Opponentsi
X
Henry Ridgwell
July 28, 2015 9:53 PM
A British pro-democracy group has accused Russia of abusing the global law enforcement agency Interpol by requesting the arrest and extradition of political opponents. A new report by the group notes such requests can mean the accused are unable to travel and are often unable to open bank accounts. VOA's Henry Ridgwell reports.
Video

Video Russia Accused of Abusing Interpol to Pursue Opponents

A British pro-democracy group has accused Russia of abusing the global law enforcement agency Interpol by requesting the arrest and extradition of political opponents. A new report by the group notes such requests can mean the accused are unable to travel and are often unable to open bank accounts. VOA's Henry Ridgwell reports.
Video

Video Genome Initiative Urgently Moves to Freeze DNA Before Species Go Extinct

Earth is in the midst of its sixth mass extinction. The last such event was caused by an asteroid 66 million years ago. It killed off the dinosaurs and practically everything else. So scientists are in a race against time to classify the estimated 11 million species alive today. So far only 2 million are described by science, and researchers are worried many will disappear before they even have a name. VOA’s Rosanne Skirble reports.
Video

Video Scientists: One-Dose Malaria Cure is Possible

Scientists have long been trying to develop an effective protection and cure for malaria - one of the deadliest diseases that affects people in tropical areas, especially children. As the World Health Organization announces plans to begin clinical trials of a promising new vaccine, scientists in South Africa report that they too are at an important threshold. George Putic reports, they are testing a compound that could be a single-dose cure for malaria.
Video

Video Special Olympics Athletes Meet International Friends

The Special Olympics are underway in Los Angeles, California, with athletes from 165 countries participating in an event that gives people with intellectual disabilities the chance to take part in an international competition. VOA's Mike O'Sullivan reports that for athletes and their families, it's also an opportunity to make new friends in an international setting.
Video

Video 'New York' Magazine Features 35 Cosby Accusers

The latest issue of 'New York' magazine features 35 women who say they were drugged and raped by film and television celebrity Bill Cosby. The women are aged from 44 to 80 and come from different walks of life and races. The magazine interviewed each of them separately, but Zlatica Hoke reports their stories are similar.
Video

Video US Calls Fight Against Human Trafficking a Must Win

The United States is promising not to give up its fight against what Secretary of State John Kerry calls the “scourge” of modern slavery. Officials released the country’s annual human trafficking report Monday – a report that’s being met with some criticism. VOA’s National Security correspondent Jeff Seldin has more from the State Department.
Video

Video Iran Nuclear Pact Wins Few New US Congressional Backers

Later this week, President Barack Obama returns from a trip to Africa to confront a U.S. Congress roiled by the nuclear accord with Iran, an agreement that has received the blessing of the U.N. Security Council. Days of intensive lobbying and testimony by top administration officials have won few new congressional supporters of the pact. VOA’s Michael Bowman reports.
Video

Video Washington DC Underground Streetcar Station to Become Arts Venue

Abandoned more than 50 years ago, the underground streetcar station in Washington D.C.’s historic DuPont Circle district is about to be reborn. The plan calls for turning the spacious underground platforms - once meant to be a transportation hub, - into a unique space for art exhibitions, presentations, concerts and even a film set. Roman Mamonov has more from beneath the streets of the U.S. capital. Joy Wagner narrates his report.
Video

Video Europe’s Twin Crises Collide in Greece as Migrant Numbers Soar

Greece has replaced Italy as the main gateway for migrants into Europe, with more than 100,000 arrivals in the first six months of 2015. Many want to move further into Europe and escape Greece’s economic crisis, but they face widespread dangers on the journey overland through the Balkans. VOA's Henry Ridgwell reports.
Video

Video Stink Intensifies as Lebanon’s Trash Crisis Continues

After the closure of a major rubbish dump a week ago, the streets of Beirut are filling up with trash. Having failed to draw up a plan B, politicians are struggling to deal with the problem. John Owens has more for VOA from Beirut.
Video

Video Paris Rolls Out Blueprint to Fight Climate Change

A U.N. climate conference in December aims to produce an ambitious agreement to fight heat-trapping greenhouse gases. But many local governments are not waiting, and have drafted their own climate action plans. That’s the case with Paris — which is getting special attention, since it’s hosting the climate summit. Lisa Bryant takes a look for VOA at the transformation of the French capital into an eco-city.
Video

Video Racially Diverse Spider-Man Takes Center Stage

Whether it’s in a comic book or on the big screen, fans have always known the man behind the Spider-Man mask as Peter Parker. But that is changing, at least in the comic book world. Marvel Comics announced that a character called Miles Morales will replace Peter Parker as Spider-Man in a new comic book series. He is half Latino, half African American, and he is quite popular among comic book fans. Correspondent Elizabeth Lee reports from Los Angeles.
Video

Video Critics of Japan Defense Policy Focus on Okinawa

In Okinawa, many locals have long complained that Tokyo places an unfair burden on the tiny island by locating most of Japan's U.S. military bases there. As Japan's government moves toward strengthening and expanding the country's defense policies, opponents of those plans are joining local protesters in Okinawa, voicing concern about where the country is headed. VOA’s Brian Padden reports from Okinawa.
Video

Video IS Uses Chemical Weapons in Syrian Attack

Islamic State militants have added a new weapon in their arsenal of fear: chemical weapons. VOA Kurdish service reporter Zana Omer was on the scene within hours of a recent attack in Hasakah, Syria, and has details of the subsequent investigation, in this report narrated by Miguel Amaya.
Video

Video Historic Symbol Is Theme of Vibrant New Show

A new exhibit in Washington is paying tribute to the American flag with a wide and eclectic selection of artwork that uses the historic symbol as its central theme. VOA’s Julie Taboh was at the DC Chamber of Commerce for the show’s opening.

VOA Blogs