This is just the coolest stuff.
http://www.youtube.com/watch?v=IyxZwFbQzpQ
http://www.youtube.com/watch?v=zetCTCp2WCQ
http://www.youtube.com/watch?v=ckSbMqbQoyY
Behind the scenes
http://www.youtube.com/watch?v=oZLdguAzbwg
http://www.youtube.com/watch?v=Mj_4gTcIbPw
http://www.youtube.com/watch?v=KbS50_65UjI
http://www.youtube.com/watch?v=aJyYhcZwb7E
http://www.arcattack.com
Saturday, August 28, 2010
Thursday, August 26, 2010
Asteroids
I was thinking that the best way to deflect an asteroid impact is to use a second smaller asteroid's gravity, or even an impact. We need to go up there as start colonizing asteroids, mining them and learning how to steer them, and move them around. We need to do this now, well before it becomes an emergency because then it will be too late to learn and experiment.
I am thinking we could create a fleet of small Earth crossing asteroid and use them like space stations as well as have them available to defend us.
I am thinking we could create a fleet of small Earth crossing asteroid and use them like space stations as well as have them available to defend us.
View of the solar system showing the locations of all the asteroids starting in 1980, as asteroids are discovered they are added to the map and highlighted white so you can pick out the new ones.
The final color of an asteroids indicates how closely it comes to the inner solar system.
Earth Crossers are Red
Earth Approachers (Perihelion less than 1.3AU) are Yellow
All Others are Green
Notice now the pattern of discovery follows the Earth around its orbit, most discoveries are made in the region directly opposite the Sun. You'll also notice some clusters of discoveries on the line between Earth and Jupiter, these are the result of surveys looking for Jovian moons. Similar clusters of discoveries can be tied to the other outer planets, but those are not visible in this video.
As the video moves into the mid 1990's we see much higher discovery rates as automated sky scanning systems come online. Most of the surveys are imaging the sky directly opposite the sun and you'll see a region of high discovery rates aligned in this manner.
At the beginning of 2010 a new discovery pattern becomes evident, with discovery zones in a line perpendicular to the Sun-Earth vector. These new observations are the result of the WISE (Widefield Infrared Survey Explorer) which is a space mission that's tasked with imaging the entire sky in infrared wavelengths.
Currently we have observed over half a million minor planets, and the discovery rates snow no sign that we're running out of undiscovered objects.
Orbital elements were taken from the 'astorb.dat' data created by Ted Bowell and associates at http://www.naic.edu/~nolan/astorb.html
The final color of an asteroids indicates how closely it comes to the inner solar system.
Earth Crossers are Red
Earth Approachers (Perihelion less than 1.3AU) are Yellow
All Others are Green
Notice now the pattern of discovery follows the Earth around its orbit, most discoveries are made in the region directly opposite the Sun. You'll also notice some clusters of discoveries on the line between Earth and Jupiter, these are the result of surveys looking for Jovian moons. Similar clusters of discoveries can be tied to the other outer planets, but those are not visible in this video.
As the video moves into the mid 1990's we see much higher discovery rates as automated sky scanning systems come online. Most of the surveys are imaging the sky directly opposite the sun and you'll see a region of high discovery rates aligned in this manner.
At the beginning of 2010 a new discovery pattern becomes evident, with discovery zones in a line perpendicular to the Sun-Earth vector. These new observations are the result of the WISE (Widefield Infrared Survey Explorer) which is a space mission that's tasked with imaging the entire sky in infrared wavelengths.
Currently we have observed over half a million minor planets, and the discovery rates snow no sign that we're running out of undiscovered objects.
Orbital elements were taken from the 'astorb.dat' data created by Ted Bowell and associates at http://www.naic.edu/~nolan/astorb.html
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