News / Science & Technology

Scientists Call Image of Exoplanet 'Best-Ever'

The bright white dot is the planet Beta Pictoris b, glowing in the infrared light from the heat released when it was formed. The bright star Beta Pictoris is hidden behind a mask at the center of the image. (Christian Marois, NRC Canada)
The bright white dot is the planet Beta Pictoris b, glowing in the infrared light from the heat released when it was formed. The bright star Beta Pictoris is hidden behind a mask at the center of the image. (Christian Marois, NRC Canada)

Related Articles

Astronomers Spot Water on Five Exoplanets

NASA says the planets are likely 'hot Jupiters'

Gassy Exoplanet has Earth-like Mass

KOI-314c is the lightest planet ever measured, researchers said

US Space Telescope Spots 715 More Planets

'Planet hunter' enables scientists to add discoveries to list of known worlds beyond solar system - boosting overall tally to nearly 1,700
VOA News
Scientists have released what they’re calling the “best-ever direct photo of a planet outside our solar system.”
 
The planet is Beta Pictoris b, which is 63 light-years from Earth.
 
Physicists at Stanford University used the Gemini Planet Imager (GPI) to produce the image.
 
According to a news release from Stanford, the “planet is visible in a single 60-second exposure; with previous instruments it would have taken an hour.”
 
Scientists added that that data collected about the planet “revealed important details of the planet's orbit and axis and its relationship to a nearby asteroid belt.”
 
The GPI is sensitive enough to detect relatively faint planets orbiting bright stars, researchers said.
 
This, they said, makes it possible to see “Jupiter-size planets orbiting closer to stars that are more like our own.”
 
With GPI, Bruce Macintosh, a Stanford professor of physics and the principal investigator on the international planet-hunting project, said his team could possibly discover and characterize 20 to 50 more planets.
 
"To some extent this is really the old looking-for-the-keys-under-the-searchlight joke," Macintosh said in a statement. "We look around bright nearby stars because we need the stars to be bright for GPI to work. But stars that are bright and close let you get lots more photons from the star and planet, and you can do a better job of understanding the planet."
 
Direct imaging of exoplanets is very challenging. Most are discovered using indirect methods in which the exoplanet’s existence is inferred, but not actually seen.
 
Beta Pictoris b was also the first exoplanet to have its rotation rate measured. Its rotation is so fast, that a day on the planet, which is more than 16 times larger and 3,000 times more massive than Earth, lasts only 8 hours.
 
The massive planet is relatively young at about 20 million years old, according to the European Southern Observatory (ESO). Earth is estimated to be 4.5 billion years old.
 
ESO says Beta Pictoris b orbits its star at about eight times the distance the Earth is away from the sun.
 
Images of Earth-like planets will need to wait for better technology as they’re too small and don’t shine brightly enough to be detected over such distances.
 
Macintosh called the image of Beta Pictoris b “a step on the road” to finding another Earth.

"Someday a future space telescope will use the same technology, and be able to see an Earth around one of these nearby stars," he said.
 
The research was published in the Proceedings of the National Academy of Sciences.

You May Like

Taliban's New Leader Says Jihad Will Continue

Top US Afghan diplomat also meets with Pakistani, Afghan officials following news of Mullah Omar's death More

Video US Landmark Pushes Endangered Species

People gathered in streets, on rooftops in Manhattan to see image highlights that covered 33 floors of Empire State Building More

World’s Widest Suspension Bridge Being Built Over Bosphorus

Once built, Yavuz Sultan Selim Bridge will span 2 kilometers with about 1.5 kilometers over water, and will be longest suspension bridge in world carrying rail system 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.
Astronauts Train Underwater for Deep Space Missionsi
|| 0:00:00
...    
🔇
X
George Putic
July 30, 2015 8:59 PM
Manned deep space missions are still a long way off, but space agencies are already testing procedures, equipment and human stamina for operations in extreme environment conditions. Small groups of astronauts take turns in spending days in an underwater lab, off Florida’s southern coast, simulating future missions to some remote world. VOA’s George Putic reports.
Video

Video Astronauts Train Underwater for Deep Space Missions

Manned deep space missions are still a long way off, but space agencies are already testing procedures, equipment and human stamina for operations in extreme environment conditions. Small groups of astronauts take turns in spending days in an underwater lab, off Florida’s southern coast, simulating future missions to some remote world. VOA’s George Putic reports.
Video

Video Civil Rights Leaders Struggled to Achieve Voting Rights Act

Fifty years ago, lawmakers approved, and U.S. President Lyndon Johnson signed, the Voting Rights Act of 1965. The measure outlawed racial discrimination in voting, giving millions of blacks in many parts of the southern United States federal enforcement of the right to vote. Correspondent Chris Simkins introduces us to some civil rights leaders who were on the front lines in the struggle for voting rights.
Video

Video Booming London Property a ‘Haven for Dirty Money’

Billions of dollars of so-called ‘dirty money’ from the proceeds of crime - especially from Russia - are being laundered through the London property market, according to anti-corruption activists. As Henry Ridgwell reports from the British capital, the government has pledged to crack down on the practice.
Video

Video Hometown of Boy Scouts of America Founder Reacts to Gay Leader Decision

Ottawa, Illinois, is the hometown of W.D. Boyce, who founded the Boy Scouts of America in 1910. In Ottawa, where Scouting remains an important part of the legacy of the community, the end of the organization's ban on openly gay adult leaders was seen as inevitable. VOA's Kane Farabaugh reports.
Video

Video 'Metal Muscles' Flex a New Bionic Hand

Artificial limbs, including the most complex of them – the human hand – are getting more life-like and useful due to constant advances in tiny hydraulic, pneumatic and electric motors called actuators. But now, as VOA’s George Putic reports, scientists in Germany say the future of the prosthetic hand may lie not in motors but in wires that can ‘remember’ their shape.
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 'Positive Atmosphere' Points Toward TPP Trade Deal in Hawaii

Talks on a major new trade agreement among 12 Pacific Rim nations are said to be nearing completion in Hawaii. Some trade experts say the "positive atmosphere" at the discussions could mean a deal is within reach, but there is still hard bargaining to be done over many issues and products, including U.S. drugs and Japanese rice. VOA's Jim Randle 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 '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 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.

VOA Blogs