The Instigator
Kirito56699
Pro (for)
Tied
0 Points
The Contender
TheQuestionMark
Con (against)
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0 Points

How long do we humans have time on earth?

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Voting Style: Open Point System: 7 Point
Started: 9/25/2015 Category: Science
Updated: 1 year ago Status: Post Voting Period
Viewed: 238 times Debate No: 80156
Debate Rounds (5)
Comments (2)
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Kirito56699

Pro

Humans have little time on earth as we no it... We have global warming, pollution,etc.
but how long do we have left?
TheQuestionMark

Con

I know how much time we have left. March 16, 2880.

Scientists at Nasa have been watching an asteroid, named 1950 DA, which is currently on a path to collide with Earth on March 16, 2880.

http://i.dailymail.co.uk...

The asteroid is a rock two-thirds of a mile in diameter, travelling at about 15km (nine miles) a second relative to the Earth.
It is due to swing so close to Earth it could slam into the Atlantic Ocean at 38,000 miles per hour.

It is estimated that if 1950 DA were to collide with the planet, it would do so with a force of around 44,800 megatonnes of TNT.

This represents a risk 50 per cent greater than an impact from all other asteroids.
Over the long timescales of Earth's history, asteroids this size and larger have periodically hammered the planet.
The so-called K/T impact, for instance, ended the age of the dinosaurs 65 million years ago.
Asteroid 1950 DA was discovered on 23 February 1950. It was observed for 17 days and then faded from view for half a century.
Then, an object discovered on 31 December 2000 was recognised as being the long-lost 1950 DA.
The New Year's Eve sighting was exactly 200 years to the night after the discovery of the first asteroid, Ceres.
It was found that the asteroid 1950 DA has a trajectory that for a 20-minute window on March 16, 2880, a collision cannot be entirely ruled out.
Optical observations showed the asteroid rotated once every 2.1 hours, the second fastest spin rate ever observed for an asteroid its size.
But scientists claim there is no cause for concern.
If it is eventually decided 1950 DA needs to be diverted, the hundreds of years of warning could allow a method as simple as dusting the surface of the asteroid with chalk or charcoal, or perhaps white glass beads.
This would change the asteroid's reflectivity and allow sunlight to do the work of pushing the asteroid out of the way.
Planetary scientists, meanwhile, are getting a better handle on the risks of asteroid impacts.
Debate Round No. 1
Kirito56699

Pro

Kirito56699 forfeited this round.
TheQuestionMark

Con

TheQuestionMark forfeited this round.
Debate Round No. 2
Kirito56699

Pro

Kirito56699 forfeited this round.
TheQuestionMark

Con

TheQuestionMark forfeited this round.
Debate Round No. 3
Kirito56699

Pro

Kirito56699 forfeited this round.
TheQuestionMark

Con

TheQuestionMark forfeited this round.
Debate Round No. 4
Kirito56699

Pro

Kirito56699 forfeited this round.
TheQuestionMark

Con

TheQuestionMark forfeited this round.
Debate Round No. 5
2 comments have been posted on this debate. Showing 1 through 2 records.
Posted by Snow10 1 year ago
Snow10
no one can determine how long humans have on earth, for Christians: its as long as god want us to be, for others: as long as science permits us.
Posted by debatemaster163 1 year ago
debatemaster163
This is an open-response question, not a yes-no question? How do we debate this???
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