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What will happen to space garbage until a garbage collector satellite is launched?
remain a danger to travel in space
What did scientists discuss at the conference?
how to get rid of old satellites and metal pieces
How to prevent collisions according to UN?
countries shouldn't use old satellite for missile target practice
How did UN support the world's space agencies? What was it about?
gave some sensible advice about collision prevention
What did people do after the collision in Feb, 2009?
An international conference about how to reduce objects in orbit took place
What happened on Feb 10th, 2009?
a large communications satellite collided with another one, adding 200 pieces of space garbage.....
What could shattered pieces of metal from a collision cause next?
more collisions until the space around the earth was full of pieces of metal
What would happen after a collision?
hundreds of small pieces of metal would be in the orbit instead of 2 large satellites
Who realized the probability of a collision between two or more orbit?
former NASA scientist Donald Kessler in the 1970s
When do you use a satellite in daily life?
watch TV, make long- distance phone calls


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