Tuesday, 08 November 2011 11:26
A massive asteroid will make a rare fly-by Tuesday, and although it poses no danger of crashing to Earth, US scientists said this week they are looking forward to getting a closer look.
"This is not a potentially hazardous asteroid, just a good opportunity to study one," said National Science Foundation astronomer Thomas Statler.
The circular asteroid, named 2005 YU55, is about 1,300 feet (400 meters) wide and will come closer than the Moon, zipping by at a distance of 202,000 miles (325,000 kilometers), the US space agency said.
The time of the nearest fly-by is expected to be at 2328 GMT (6:28 Eastern time in the US).
The encounter will be the closest by an asteroid of that size in more than 30 years, and a similar event will not happen again until 2028.
Astronomers who have studied the object, part of the C-class of asteroids, say it is very dark, like the color of carbon, and quite porous.
It was first discovered in 2005 by Robert McMillan of the Spacewatch Project, a solar-system-scanning group of scientists near Tucson, Arizona.
While 2005 YU55 will stay a safe distance away, it is part of a crew of 1,262 big asteroids circling the Sun and measuring more than 500 feet (150 meters) across that NASA classifies as "potentially hazardous."
"We want to study these asteroids so if one does look like it may hit us someday, we'll know what to do about it," Statler said.
The asteroid's closest pass is set to take place in 2094, at a distance of 167,000 miles (269,000 kilometers), according to forecasts.
"The observations will give us a piece of the puzzle, one we don't get many chances to see," said Don Yeomans of NASA's Jet Propulsion Laboratory.
"At one time, we thought these were the asteroids that delivered carbon and other elements to the early Earth, so they are pretty important."
NASA said the last time a space rock this big approached Earth was in 1976, "although astronomers did not know about the flyby at the time."
- 12/11/2011 11:45 - Malacañang moves against group misrepresenting as gov't officials
- 09/11/2011 11:25 - Aquino congratulates Ruais for winning first runner up in 2011 Miss World beauty pageant
- 09/11/2011 11:23 - ‘Smokin’ Joe Frazier loses battle against liver cancer
- 09/11/2011 11:22 - Gov't alarmed over increase of Filipino-South Korean marriages
- 09/11/2011 11:21 - NPA ambush kills 1, injures 3 others in Misamis province
- 08/11/2011 11:25 - House leader calls for inquiry into communist attacks in Mindanao
- 08/11/2011 11:24 - Death toll from Thailand floods rises past 500
- 07/11/2011 20:10 - 'Manny is ready to fight even today' - Roach
- 07/11/2011 20:10 - Aquino bares gov't plans to prevent Filipinos from working overseas
- 05/11/2011 13:42 - Aquino government renews commitment to OFW welfare; supports POEA deployment ban