Perhaps the biggest stone of all with all of the kilometers or miles behind it was the first ever landing of a probe on a comet hundreds
of millions of kilometers away.
With millions of kilometers run by hundreds of prototypes, with a two - year development procedure, what can we expect from the A about to come into the light.
As comets approach the Sun they develop enormous tails of luminous material that extend for
millions of kilometers from the head, away from the Sun.
In the corona, the expansive outer layer of the solar atmosphere that
extends millions of kilometers from the sun's surface, temperatures reach millions of kelvins.
What has always been in doubt is whether it is possible to build an instrument that can measure to picometer - precision
across millions of kilometers after having the life shaken out of it by a rocket launch.»
«Each and every fresh asteroid, when we traced it backward for 500,000 years, had passed very close to Earth» — within 100,000 kilometers, versus
millions of kilometers for the other NEAs — says planetary scientist and co-author Richard Binzel of the Massachusetts Institute of Technology in Cambridge.
Sailing a spacecraft into an orbital path anywhere from a million to even tens of
millions of kilometers ahead of the Red Planet would make it possible for Mars (and its spacetime bowl) to ease into the spacecraft's vicinity, thus subsequently letting the spacecraft be ballistically captured.
Although the comet's tail may ultimately
stretch millions of kilometers through the solar system, its nucleus is likely smaller than New York's Central Park.
Three separate spacecraft,
flying millions of kilometers apart from each other at the vertices of a giant triangle, would precisely measure their mutual separations using sensitive lasers, and thus be capable of detecting low - frequency ripples in spacetime.
The bad news: there's no easy way to find seepage, given that pipelines and distribution pipes
cover millions of kilometers and at least 500,000 active wells and more than 100,000 abandoned and forgotten old wells exist across the U.S. «We need to develop ways to quickly and cheaply find these sources,» Brandt says.
Although the Greek poets of antiquity praised the unsurpassed beauty of the mythological maiden princess, they could never have imagined that hundred of
million of kilometers away lay a real world of equal beauty and intrigue that would captivate the hearts and minds of astronomers, planetary scientists, and space advocates alike, up to this day.
If separated
by millions of kilometers and linked by lasers, such a system could then detect the exquisitely small distance changes caused by passing gravitational waves.
That might sound a little counter-intuitive because lasers are very narrow when they are first emitted, but if that light travels across many light - years that beam widens significantly, and so the beam width can be on the order of tens
of millions of kilometers across or more, and so any planet lying within that beam would be unable to see our transit.»
But this time, instead of the Sun, the larger object is the Moon: Occasionally, the two line up in the sky providing us with this amazing view of objects that are actually separated by tens of
millions of kilometers.
Those limitations have constrained their designs to arm lengths of «only»
millions of kilometers.
Based on a great deal of circumstantial evidence, many theorists now believe that in our solar system's infancy its giant planets shifted over hundreds of
millions of kilometers, propelled by gravitational interactions between the planets and orbiting disks of debris.
Command rovers, landers, or probes, over a distance of hundreds of
millions of kilometers - and collect important scientific data about Mars.