Fresh articles

» IOS6 news and fixes
» Strange Martian crater
» 100 Petabits per second
» Artificial life created
» Space rock contains organic molecular feast
» 10 Failed Doomsday Predictions
» Universal phone charger
» Moon buildings
» Epassports RFID danger
» 500Gb optical

 
 

 
 

 Index

Sexy things-> Sexy things (4)
Bulk-> Bulk (15)
Technology-> Technology (42)
Space-> Space (35)
UFO-> UFO (5)
Funny-> Funny (4)
Earth Life-> Earth Life (9)
Internet-> Internet (10)
Health-> Health (1)

 
 

 
 

 Most popular

»X-ray
» Google unifies search results
»Google under water
»Moon buildings
»500Gb optical
»Scientists Levitate Small Animals
»Jet stream is weakening
»Orion new nasa vehicle
»Saturns moon like ocean floor
»How Cells Store Fat

 
 

 
 

 Other articles

»Ancient Greek Macine
»Frisbee - Unmanned Aerial Vehicles
»Ocean Discovered Inside Earth
»Universe might be a bit stretched
»Wireless recharging
»Asteroid 2036
»Magic Wardrobe
»Spider Silk Could Repair Human Ligaments
»UFO Photographed over Capilla del Monte, Argentina
»Asteroid TU24
»Space rock contains organic molecular feast
»Women gamers
»Cassini near Saturn
»Moon total eclipse
»Are your Web surfing fingers getting tired?
»Vatican says aliens could exist
»Russia building nuke barge to power Arctic
»Dark energy universe growth
»Honda first hydrogen cars
»Epassports RFID danger

 
 

 
 

An asteroid which may be as big as a ten-storey building has passed close by the Earth, astronomers say.

The object, known as 2009 DD45, thought to be 21-47m (68-152ft) across, raced by our planet at 1344 GMT on Monday.

The gap was just 72,000 km (44,750 miles); a fifth of the distance between our planet and the Moon.

It is in the same size range as a rock which exploded over Siberia in 1908 with the force of 1,000 atomic bombs.

The object was first reported on Saturday by the Siding Spring Survey, a near-Earth object search programme in Australia.

It was confirmed by the International Astronomical Union's Minor Planet Centre (MPC), which catalogues Solar System objects.

The closest recent flyby listed by the MPC is 2004 FU162, a small asteroid about 6m (20ft) across which came within about 6,500km (4,000 miles) of our planet in March 2004.

The latest object, 2009 DD45, passed by our planet at only twice the altitude of satellites in geosynchronous orbit.

In 1908, an object with a similar size exploded over Siberia, flattening 80 million trees over an area of 2,000 square km (800 square miles) near the Tunguska river.

"There is still a lot of debate over how big the Tunguska object was," Professor Alan Fitzsimmons, an astronomer at Queens University Belfast, told BBC News.

"It was always thought to be 50 or 70m across. But some recent calculations have implied it may have been even smaller than that - maybe down to 30m in size. There's a large uncertainty there, but it puts (this object) in the same ballpark."

A United Nations working group on near-Earth objects (NEOs) met last month to discuss drafting international procedures for handling the asteroid threat.

Dr Richard Crowther, chair of the UN Working Group on Near-Earth Objects, commented: "Although we will meet formally again in June of this year to advance our work on this important issue, I am sure we will discuss the implications of the 2009 DD45 close approach informally before then.

He told BBC News: "Such unanticipated near-misses - at least in astronomical terms - from objects such as 2009 DD45... demonstrate the need for the global community to establish the means to mitigate this impact threat."

As had been shown with the Tunguska object, asteroids of this size could potentially unleash a destructive power equivalent to about 10 to 15 megatonnes of TNT, Dr Crowther explained. This is about 1,000 times more powerful than the blast from the bomb dropped on Hiroshima.

Professor Fitzsimmons added that the destructive potential of an object such as 2009 DD45 depended on what it was made of and the angle at which it hit the Earth's atmosphere.
 Read this article Email this article

Article © News, Technology, Space, Science - Breaking News and interesting storiesShare

 
 

 
 
 
 

You need to login first



Satellite Shooted down

 
  Did you know?...

- Women in ancient Egypt prevented pregnancy with
plugs made of crocodile droppings?

- Based on artifacts and cave paintings, Ice Age women were likely to enjoy sex as much as their male mates?

- In 2005, the average first time for US girls occurred at the age of 17?

- Known aphrodisiacs of the food world include chocolate, oysters and spicy foods?

- That females have a weaker sex drive than men is a  cultural misconception?

- The most common sexual problem among men is premature ejaculation?

- It is a common misconception that pregnancy can’t occur without male orgasm?

- Whether put to use or not, males produce about 300 million sperm every day?
 
 

 
 

 Visit:

CNN Page

NASA Page

BBC UK

Google News

World of Warcraft News

Romanian Web Hosting

Romanian Domain Registrar

.BIZ Domain Registrar

Advertising

Funny Things

Golden Sands Bulgary

Web Hosting News

Web Hosting Romania

Gadgets Resources

Top Video Games Online
 
 




Members

Username
Password:

[New account] [Forgoten password]


 
 

Keyword:

 
 

©12-Dec-2017