Jump to content

Big rock heading for us in 2040


PromoTheRobot

Recommended Posts

  • Replies 40
  • Created
  • Last Reply

Top Posters In This Topic

Top 10 ways to stop an asteroid - - no joke - - there's some pretty imaginative Rube Goldberg ideas here (you have to scroll over the pictures to see the explanatory text):

 

http://news.discovery.com/space/top-10-asteroid-deflection.html

They left out the possibility of getting a hot looking female asteroid to hang around Mars and make goo goo eyes at the bad guy.

Link to comment
Share on other sites

  • 2 weeks later...
  • 1 month later...

Thought this article was fairly interesting with respect to how often asteroids zip by the earth at distances less than the average distance to the moon (i.e., less than 238,000 miles):

 

http://news.yahoo.com/bus-size-asteroid-zips-close-earth-184131023.html

 

But those asteroids are all lightweights compared to 2005 YU55, a city-block-size space rock that came within 202,000 miles (325,000 km) of Earth last November. At 1,300 feet (400 m) wide, 2005 YU55 was the biggest asteroid to come so close to our planet since 1976, researchers said.

 

Might be old news to people who follow this stuff, but I never realized just how "near" some of these near-earth asteroids routinely orbit.

 

Makes me curious about the longest known time period it takes for an asteroid to complete one full orbit. Anybody know what that time is?

 

If it's longer than man has been in space, you have to wonder if there are non-trivial earth impact probabilities that we just don't know about yet.

 

Edit: Did a little more digging, and found a story about a 150 foot wide asteroid that wasn't discovered until 2010, and has an 88 year orbit:

 

http://www.space.com/9205-potentially-hazardous-asteroid-earth-4-million-miles.html

Edited by ICanSleepWhenI'mDead
Link to comment
Share on other sites

He's overstating the threat - because that's his job, so I don't much blame him.

 

And the planning for a deflection mission is on its own a useful exercise. We'll need it some day, may as well work some of the bugs out of the process now.

Turns out there's a lot I don't know about asteroid deflection planning:

 

From http://www.space.com/9571-tiny-asteroid-buzzed-earth-fast-spinning-rock.html

 

The U.S. space agency also plans to send astronauts to an asteroid by 2025 under a space plan ordered by President Obama. Such a mission could help scientists better understand the makeup of asteroids and to determine better means of deflecting them before they pose a threat to Earth, agency officials have said.
Link to comment
Share on other sites

×
×
  • Create New...