Thursday, July 20, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in
This news story is archived which means that, while it is still available to view, the information contained within may be outdated and the original source site/link may no longer be viewable.

For the most recent stories, please visit either the site's home page or main news section.

Does asteroid Apophis pose a threat ?

Posted on Thursday, 10 January, 2013 | Comment icon 21 comments | News tip by: Waspie_Dwarf


Image credit: NASA

 
In December 2004 Apophis was shaping up to be a major concern, but is that still the case now ?

As the 325m wide asteroid swings around for another close pass, astronomers have been taking the opportunity to continue learning as much as possible about what was once considered to be the most dangerous object in the sky. When it was discovered in 2004 it looked as if there was a 1 in 300 chance of a collision with the Earth, prompting NASA to ask astronomers to record their observations in an effort to help refine this figure. At one point the odds worsened to 1 in 45.

Fortunately we now know that the odds of a collision are much, much smaller with the chance of a 2036 hit at 1 in 7,143,000. Even so, Apophis is still an object of great interest and due to its orbit is something we will be hearing a lot more about in the coming decades.

"Asteroid Apophis arrives this week for a close pass of Earth."

  View: Full article

 Source: Guardian Unlimited


  Discuss: View comments (21)

   


 
Recent comments on this story
Comment icon #12 Posted by Waspie_Dwarf on 10 January, 2013, 22:05
Yes it will pass at the distance calculated for 2029, but what effect might gravity have - which then possibly alters its orbit, even if its only by a fraction it will need to be recalculate surely for the exact position for the 2036 pass. The change in orbit can be calculated in advance IF the distance that the asteroid will pass Earth in 2029 is known with enough accuracy. That calculation has now been made and an impact in 2039 ruled out (see THIS THREAD). so what im saying is, until it passes in 2026 we wont know the outcome for 2036. Totally wrong. We've been able to calculate orbits with... [More]
Comment icon #13 Posted by Eonwe on 11 January, 2013, 0:09
Agreed. Over 100 million megatons. Apophis is around 1/30th the diameter of the Chixulub impactor. At least if we get hit we don't all die.. Silver lining.
Comment icon #14 Posted by dan-paul-mark on 11 January, 2013, 0:16
i heard that the solar systems orbit fluctuates up and down, and the last time we were at the point we're heading towards soon; which is a large asteroid belt, was when the dinosaurs were wiped by the collision. anyone no if this is true?
Comment icon #15 Posted by Waspie_Dwarf on 11 January, 2013, 0:21
i heard that the solar systems orbit fluctuates up and down, and the last time we were at the point we're heading towards soon; which is a large asteroid belt, was when the dinosaurs were wiped by the collision. anyone no if this is true? To be honest I'm not really sure what you mean, your question seems to me to be a confused conglomerate of ideas. If by the "solar system's orbit fluctuating up and down" you mean does it move within the galaxy, yes it does, but there is no asteroid belt that it is travelling towards.
Comment icon #16 Posted by Merc14 on 11 January, 2013, 1:13
The change in orbit can be calculated in advance IF the distance that the asteroid will pass Earth in 2029 is known with enough accuracy. That calculation has now been made and an impact in 2039 ruled out (see THIS THREAD). Totally wrong. We've been able to calculate orbits with extraordinary accuracy since the days of Kepler and Newton. The only reason there was doubt about the possibility of an an impact in 2036 was because the orbit was not known with sufficient accuracy. Now that the orbit has been refined the uncertainty can be reduced to the point where an impact in 2036 can be ruled out... [More]
Comment icon #17 Posted by dan-paul-mark on 11 January, 2013, 1:31
To be honest I'm not really sure what you mean, your question seems to me to be a confused conglomerate of ideas. If by the "solar system's orbit fluctuating up and down" you mean does it move within the galaxy, yes it does, but there is no asteroid belt that it is travelling towards. haha fair enough just something i'd heard. seemed unlikely as you'd expect to have heard more about it if it were true
Comment icon #18 Posted by coolguy on 11 January, 2013, 4:51
Is this the one we can see with the naked eye. We can get hit again some day
Comment icon #19 Posted by Merc14 on 11 January, 2013, 5:28
Is this the one we can see with the naked eye. We can get hit again some day This planet will absolutely be hit by another asteroid in the next 7 billion years the sun exists. Well, 4B before it starts expanding and sterilizes this rock. WD can correct the numbers but we will be hit and if we can't advance to the stage where we can stop it, then we will cease to exist as a species. It probably won't happen in your lifetime bt it mihght. Regardless, worrying about dying from weird things like asteroid strikes is making yourself dead already. Yes, 99% certainty the earth will be hit again but we... [More]
Comment icon #20 Posted by redbundy on 11 January, 2013, 10:27
When (what time) and where (will it be visable all over the planet or just from a certain country or continent) will this be taking place? I'd like to try and see it. Does anybody know?
Comment icon #21 Posted by stevewinn on 11 January, 2013, 18:01
The change in orbit can be calculated in advance IF the distance that the asteroid will pass Earth in 2029 is known with enough accuracy. That calculation has now been made and an impact in 2039 ruled out (see THIS THREAD). Totally wrong. We've been able to calculate orbits with extraordinary accuracy since the days of Kepler and Newton. The only reason there was doubt about the possibility of an an impact in 2036 was because the orbit was not known with sufficient accuracy. Now that the orbit has been refined the uncertainty can be reduced to the point where an impact in 2036 can be ruled out... [More]


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5946229
256022
168224

 
Today marks 48 years since first Moon landing
7-20-2017
Buzz Aldrin and Neil Armstrong made history when they set foot on the lunar surface 48 years ago today.
Australia find 'rewrites the history books'
7-20-2017
Archaeologists now believe that Australia was colonized 18,000 years earlier than previously thought.
Top US general warns against killer robots
7-19-2017
General Paul Selva has spoken out about the dangers of creating fully autonomous weapon systems.
Frozen sausages land on house roof in Florida
7-19-2017
A family in South Florida were left perplexed this week after their house was hit by bags of frozen meat.
Other news in this category
Today marks 48 years since first Moon landing
Posted 7-20-2017 | 8 comments
Buzz Aldrin and Neil Armstrong made history when they set foot on the lunar surface 48 years ago today....
 
NASA reveals amazing new Pluto flyover video
Posted 7-16-2017 | 14 comments
The footage has been constructed from the thousands of photographs taken by the New Horizons probe....
 
NASA doesn't have the funds to land on Mars
Posted 7-14-2017 | 24 comments
The space agency has admitted that it cannot currently afford to land humans on the surface of Mars....
 
Juno offers up stunning new images of Jupiter
Posted 7-13-2017 | 10 comments
The space probe has captured staggeringly detailed shots of Jupiter's centuries-old Great Red Spot....
 
Juno set to fly over Jupiter's Great Red Spot
Posted 7-10-2017 | 1 comment
NASA's Juno probe will soon be embarking on a long-awaited flyby of Jupiter's most prominent feature....
 
Mars may be a lot more toxic than we thought
Posted 7-7-2017 | 8 comments
New research has shown that the Martian soil is quite an inhospitable environment for microbial life....
 
Astronomers discover methanol on Enceladus
Posted 7-5-2017 | 11 comments
An unexpectedly high amount of the organic molecule has been found coming from Saturn's icy moon....
 
Hawking: 'Trump could turn Earth in to Venus'
Posted 7-5-2017 | 149 comments
In an interview on his 75th birthday, Professor Stephen Hawking warned of the dangers of global warming....
 
First Mars rover landed 20 years ago today
Posted 7-4-2017 | 2 comments
It has been exactly two decades since NASA's Pathfinder mission touched down on the surface of Mars....
 
NASA to launch asteroid deflection mission
Posted 7-2-2017 | 8 comments
For the first time ever, an asteroid deflection technique for planetary defense is set to be tested out....
 
Japan wants to put a man on the Moon by 2030
Posted 6-30-2017 | 11 comments
Japan's Aerospace Exploration Agency (JAXA) is aiming to scale up its manned space exploration program....
 

 View: More news in this category
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com © 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ