News / Science & Technology

NASA Captures First Images of ISON Comet

This is the orbital trajectory of comet C/2012 S1 (ISON). The comet is currently located just inside the orbit of Jupiter. In November 2013, ISON will pass less than 1.1 million miles (1.8 million kilometers) from the sun’s surface.
This is the orbital trajectory of comet C/2012 S1 (ISON). The comet is currently located just inside the orbit of Jupiter. In November 2013, ISON will pass less than 1.1 million miles (1.8 million kilometers) from the sun’s surface.
VOA News
NASA has captured the first images of a distant comet, which may give us a spectacular light show later this fall.

The images of comet C/2012 S1 (ISON), were taken by NASA’s Deep Impact spacecraft from January 17 and 18 when the comet was 493 million miles away, according to a NASA release.

"This is the fourth comet on which we have performed science observations and the farthest point from Earth from which we've tried to transmit data on a comet," said Tim Larson, project manager for the Deep Impact spacecraft at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "The distance limits our bandwidth, so it's a little like communicating through a modem after being used to DSL. But we're going to coordinate our science collection and playback so we maximize our return on this potentially spectacular comet."

As comets approach, the sun’s energy warms them, releasing gas and dust which form a comet’s luminous tail. While ISON is still distant, NASA says it is already active, with a tail extending more than 40,000 miles form the comet’s nucleus. ISON is expected to come as close as 40 million miles to Earth on December 26 of this year.

ISON is known as a long-period comet. These can have orbits lasting hundred, thousands or even millions of years. NASA believes this is ISON’s first orbit, which means it is likely “laden with volatile material just spoiling for some of the sun's energy to heat it up and help it escape.” That could mean quite a show, but NASA cautions the comet could break up as well.

Would-be comets are thought to dwell in the solar system’s Oort cloud, something NASA calls a “giant spherical cloud of icy bodies surrounding our solar system so far away its outer edge.” When these bodies are disturbed by the gravitational effects of passing or nearby stars, they can be “nudged” from the cloud and begin their long orbits around the Sun.

ISON was discovered on Sept. 21, 2012, by two Russian astronomers using the International Scientific Optical Network's 16-inch (40-centimeter) telescope near Kislovodsk.

You May Like

Tunnel Bombs Highlight Savagery of Aleppo Fight

Rebels have used tunneling tactic near government buildings, command posts or supply routes to set off explosives; they detonated their largest bomb this week under Syria's intelligence headquarters More

Sierra Leone Launches New Initiative to Stop Ebola Spread

Government hopes Infection and Prevention Control Units, IPC, will help protect patients and healthcare workers More

UN Official: Fight Against Terrorism Must Not Violate Human Rights

UN High Commissioner for Human Rights says efforts by states to combat terrorism are resulting in large scale rights violations against the very citizens they claim to defend More

This forum has been closed.
Comment Sorting
Comments
     
by: Gary from: Davenport, Iowa
February 14, 2013 10:55 AM
Where was November 28th even mentioned. Please don't mistake an awesome celestial event with any bygone religous fundamental. It's insulting, if not cringe inducing.

by: Sean from: Pendle UK
February 12, 2013 5:07 PM
That observation about Chanukah being on the 28th of November got my attention........its my Birthday.
I am SO starting to get fascinated about this heavenly event too. I want to know as much as I can about it.

by: bruce from: USA Concord, DE
February 08, 2013 12:25 AM
It just so happens Nov 28th is the first day of Chanukah! God Himself will see to it that He lights this candle!

by: Steve from: US
February 07, 2013 12:30 PM
I had alot of people make fun of my original 2012 Comet website over the last 5 years. It turns out that I made a mistake because the Bible Codes always stated "Comet" before "2012". Of course (ISON's) real name is Comet 2012/S1 because it was found in the year 2012 and the first one found in September. So is there something to the Bible Codes predictions regarding this comet after all? I read in another article that the tail has been calculated to be 40,000 miles long!! But, it seems that NASA or no one else mentions the actual nuclei size?? Why Not?? That's a big tail and when the ice starts melting inside the nuclei the C02 gases could change the direction of this big mother. Will it turn toward earth? Read more: http://comet2012.com/comet-ison/

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Video Claims to Show Shia Forces in Iraq Executing Sunni Boyi
X
Jeff Seldin
March 05, 2015 2:36 AM
A graphic mobile phone video is spreading on the Internet, claiming to show Iraqi forces or Shia militia executing a handcuffed Sunni boy. Experts have yet to verify the video, but already Islamic State followers are publicizing it across social media, playing on deep-rooted sectarian fears. VOA’s Jeff Seldin reports.
Video

Video Video Claims to Show Shia Forces in Iraq Executing Sunni Boy

A graphic mobile phone video is spreading on the Internet, claiming to show Iraqi forces or Shia militia executing a handcuffed Sunni boy. Experts have yet to verify the video, but already Islamic State followers are publicizing it across social media, playing on deep-rooted sectarian fears. VOA’s Jeff Seldin reports.
Video

Video Ukrainian Authorities Struggle to Secure a Divided Mariupol

Since last month's cease-fire went into effect, shelling around the port city of Mariupol has decreased, but it is thought pro-Russian separatists remain poised to attack. For the city’s authorities, a major challenge is gaining the trust of residents, while at the same time rooting out informants who are passing sensitive information to the rebels. Patrick Wells reports for VOA.
Video

Video Volunteer Gauge-Watchers Help Fine-Tune Weather Science

An observation system called CoCoRaHS is working to improve weather science, thanks to thousands of volunteers across the country who measure precipitation in their own backyards, then share their data through the Internet. VOA's Shelley Schlender reports.
Video

Video NASA Spacecraft Approaches a Dwarf Planet

NASA’s Dawn spacecraft will make history on Friday, March 6, when it becomes the first man-made object to orbit a dwarf planet named Ceres. It is located in the asteroid belt between Mars and Jupiter, almost 500 million kilometers from Earth. Among other objectives, Dawn will try to examine two mysterious bright white spots detected on the planet’s surface. VOA’s George Putic has more.
Video

Video Young Muslims Radicalized Online

Young Muslims are being radicalized ‘in their bedrooms’ through direct contact with Islamic State or ISIL fighters via the Internet, according to terror experts. There are growing concerns that authorities and Internet providers are not doing enough to counter online extremism - which analysts say is spread by a prolific network of online supporters around the world. Henry Ridgwell reports from London.
Video

Video African Americans Recall 1960s Fight For Voting Rights

U.S. President Barack Obama and thousands of people will gather in the small southern U.S. city of Selma, Alabama, Saturday, March 7 to commemorate the 50th anniversary of a historic voting rights march that became known as “Bloody Sunday." VOA’s Chris Simkins traveled to Alabama and introduces us to some of the foot soldiers of the voting rights struggles of the 1960s.
Video

Video Positive Messaging Transforms Ethiopia's Image

Ethiopia was once known for famine and droughts. Now, headlines more often point to its fast-growing economy and its emergence as a regional peacemaker. How has Addis Ababa changed the narrative? VOA's Marthe van der Wolf reports.
Video

Video Cyber War Rages Between Iran, US

A newly published report indicates Iran and the United States have increased their cyber attacks on each other, even as their top diplomats are working toward an agreement to guarantee Iran does not develop a nuclear weapon and to free Iran from international sanctions. The development is part of a growing global trend. VOA’s Al Pessin reports from London.
Video

Video Answers Elude Families of MH370 Passengers

For the families on board Malaysia Airlines flight MH370, an airline official’s statement nearly one year ago that the plane had lost contact with air traffic control at 2:40 AM is the only thing that remains confirmed. William Ide reports.

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