In fact, they will be moving at four or five miles per second as they approach their targets.
They shed bubbles of material at speeds of thousands of miles per second, which collide with surrounding dense clouds of hydrogen.
The first CME is travelling towards Earth at speeds greater than 1300 miles per second, and the second is travelling at about 1100 miles per second.
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The scientific community held its collective breath when research published by CERN suggested that the little guys had been caught traveling at an Einstein-defying 3.7 miles per second faster than light.
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The problem becomes less acute once they've cleared the atmosphere, but the high speeds required to escape the Earth's gravitational field (more than 6.8 miles per second) necessitate an enormous amount of energy.
Mr. GLEN FOUNTAIN (Johns Hopkins Applied Physics Lab): Leaving Earth, the New Horizons will be traveling at eight miles per second, and eight hours later, the spacecraft will pass the orbit of the moon.
During this violent time, much of the debris would have resembled comets - dirty snowballs thought to be mostly slushy water surrounding a rocky core - slamming into Earth at velocities greater than 25 km per second (16 miles per second).
Russian scientists say the meteor weighed about 10 tonnes before it entered the Earth's atmosphere, travelling at some 30km (19 miles) per second, before breaking apart 30-50km (20-30 miles) above ground.
Mr Putin said he had thanked God that no big fragments of the meteor - which was thought to be made of iron and travelling at some 30km (19 miles) per second - had fallen in populated areas.
Some of that's happened already, with average train speed up 20% to 27.4 miles per hour in the second quarter.
Its residents, who drive an average of only 7, 000 miles per year, the second-lowest annual mileage in the country, won't get much sympathy from people in Wyoming.
The object appears to have approached Tunguska from the southeast at about 11 km per second (7 miles a second).
It promises to be the fastest network yet, providing fixed and mobile broadband service and can deliver up to 40 megabits per second per channel up to 30 miles away from a base station.
Arraycomm has developed a technology called i-Burst that it says can deliver a sustained data speed of one megabit per second over distances as far as five miles from the base station, during testing in Sydney, Australia.
Other tornadoes -- one that went though parts of Choctaw County, Alabama, and ones than struck Stone, Lawrence and Jones counties in Mississippi -- also were EF2's, which have wind speeds (for three-second bursts) between 111 and 135 miles per hour.
According to Technology Review, the company's so-called "rural connectivity platform" (or RCP) is able to beam WiFi signals from one antenna to another located more than 60 miles away, and at data rates up to 6.5 megabits per second, no less.
Gill says one customer in North Carolina gets 300 kilobits per second, even though the signals travel 30, 000 feet, almost 6 miles.
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