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"The corporation promised to clean up the space in ten years by collecting about 600 defunct satellites on the same geosynchronous orbit and sinking them into the ocean subsequently,"

He said the cleaning satellite would work on nuclear power and be capable to work up to 15 years.

Energia said that the company would complete the cleaning satellite work-out and assembly by 2020 and test the device no later than in 2023.

Cecil Field becomes the country's eighth licensed commercial spaceport

In addition to suborbital passenger flights like those Virgin is offering, Cecil Field hopes to offer commercial orbital launch services

The Orbit Determination Program (ODP) of NASA's Jet Propulsion Laboratory, which was used in the data analysis, is based on an expression for the gravitational delay which differs from the standard formula; this difference is of second order in powers of $m$ -- the sun's gravitational radius -- but in Cassini's case it was much larger than the expected order of magnitude $m^2/b$, where $b$ is the ray's closest approach distance. Since the ODP does not account for any other second-order terms, it is necessary, also in view of future more accurate experiments, to systematically evaluate higher order corrections and to determine which terms are significant.

dust, most likely from another of Saturn’s moons, falls on the leading side of Iapetus as it orbits the planet

NASA's grand plan to return to the moon, built on President George W. Bush's vision of an ambitious new chapter in space exploration, is about to vanish with hardly a whimper

a commercial spacecraft that could taxi astronauts into low Earth orbit

Obama budget as disastrous for human space fligh

he panel finds the 2005 order to find 90% of Earth-threatening asteroids 460 feet or larger infeasible,

No method for diverting asteroids has been experimentally demonstrated

Options include a "gravity tractor" orbiting slow-moving objects and tugging them off course with tidal tugs, a "kinetic" impact of a heavy spacecraft into an asteroid, or a nuclear explosion

concept of operations development for reusable space vehicle technologies.

a robotic spaceplane able to remain in orbit for substantial periods before re-entering the atmosphere and coming in for a runway landing automatically

In 2002, the European Space Agency began a program called Don Quijote to find out how best to perform such a deflection.

Now, Stephen Wolters at the Open University in the UK and a few friends have published a new analysis of the mission saying that measuring the change in orbit is not enough. Instead, the spacecraft needs to characterise the impact in detail, determining the density of the material near the asteroid's surface, the size of the surface grains as well as the mass and speed distribution of the impact ejecta.

Ref: arxiv.org/abs/1107.4229: Measurement Requirements For A Near-Earth Asteroid Impact Mitigation Demonstration Mission

Policy makers would be much better placed to combat the effects of global warming if scientists had access to accurate measurements of the Earth's radiation balance from a dedicated satellite, claims an international group of physicists.

it estimates that the satellite could cut a decade or more from the time needed to make useful projections of global temperature at the end of the 21st century.

Rival chain Pizza Hut set the bar high in 2001 by delivering a pizza to astronauts orbiting the Earth

a plan for a dome-shaped concrete Domino's restaurant on the surface of the moon.