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space debris
2014-01-23 05:09:25

redOrbit Staff & Wire Reports - Your Universe Online Researchers from the Lawrence Livermore National Laboratory (LLNL) in California have developed and tested a series of ground-based mini-satellites that will be used to help control traffic in space. These so-called “space cops” were used by the LLNL team to capture a series of six images over a 60-hour period to prove that they can be used to alter the orbit of other probes traveling in low-earth orbit. The plan is to use the...

Gaia Orbits Nothing
2014-01-15 13:51:10

[ Watch the Video: Gaia Reaches Virtual Point Of Nothingness ] Lee Rannals for redOrbit.com - Your Universe Online The European Space Agency’s (ESA) Gaia spacecraft made a final, modest adjustment yesterday afternoon to keep it on track for its orbit around nothing. Gaia, which is being branded as ESA’s billion-star surveyor, finalized it’s entry into orbit around a virtual point far out in space known as L2. ESA said that Gaia made a short thruster burn on Tuesday to help...

New Explorer Mission Chooses The 'Goldilocks Orbit'
2013-08-01 08:05:06

NASA Principal Investigator George Ricker likes to call it the "Goldilocks orbit" -- it's not too close to Earth and her Moon, and it's not too far. In fact, it's just right. And as a result of this never-before-used orbit -- advanced and fine-tuned by NASA engineers and other members of the Transiting Exoplanet Survey Satellite (TESS) team -- the Explorer mission led by Ricker will be perfectly positioned to map the locations of more than 500 transiting exoplanets, extrasolar planets...

Running On Fumes
2012-07-04 16:41:34

When you consider the cost of launching a satellite, it´s small wonder that ESA is looking to keep them working as long as possible. For satellites offering communications services that are bought and paid for, this extended life is critical. Now there is a solution. Communication satellites are often placed in the unique ℠geostationary orbit´, almost 36 000 km above the equator where their speed matches Earth´s 24-hour spin. From our viewpoint, they appear to sit...

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2011-05-30 07:35:26

A team of researchers from the Royal Institute and Observatory of the Navy (ROA) in Cádiz (Spain) has developed a method to track the movement of geostationary objects using the position of the stars, which could help to monitor space debris. The technique can be used with small telescopes and in places that are not very dark. Objects or satellites in geostationary orbit (GEO) can always be found above the same point on the Equator, meaning that they appear immobile when observed from...

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2011-02-03 12:25:00

A Pentagon report warned that space is so littered with debris that a collision between satellites could set off an "uncontrolled chain reaction" capable of destroying the communications network on Earth. Scientists said that the volume of abandoned rockets, shattered satellites and missile shrapnel in Earth's orbit is reaching a "tipping point" and is now threatening the $250 billion space services industry. The report said that a collision between two satellites or large pieces of space...

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2010-08-02 09:20:00

Global Aerospace Corporation (GAC) announced recently that Dr. Kristin L. Gates will present a paper on de-orbiting space junk at the August 2 Artificial and Natural Space Debris session of the AIAA Astrodynamics Specialists Conference in Toronto, Ontario, Canada. Dr. Gates will describe GAC's Gossamer Orbit Lowering Device (GOLD) for safe and efficient removal from Low Earth Orbit (LEO) of dangerous space objects. The patented GOLD system concept uses a very large ultra thin balloon envelope...

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2010-07-26 09:45:00

When American space pioneer, Dr Robert L Forward, proposed in 1984 a way of greatly improving satellite telecommunications using a new family of orbits, some claimed it was impossible. But now engineers at the University of Strathclyde's Advanced Space Concepts Laboratory have proved that Forward was right. The late Dr Forward - a renowned physicist who worked in the United States and from his second home in Scotland - believed it was possible to use 'displaced orbits' to deploy more...

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2009-02-20 07:20:00

Experts gathered in Vienna, Austria this week to discuss solutions to deal with vast amount of space junk that is clogging up the Earth's orbit.With a recent satellite collision still fresh on their minds, some suggested that a massive cosmic cleanup is the best way to solve the problem, while others argued that improving information sharing is a better way to address the issue.The informal talks, which arose from concerns about the February 10 collision of a derelict Russian spacecraft and a...

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2009-02-12 10:25:00

Two satellites collided in orbit on Tuesday, prompting NASA to announce it to be the first collision of its kind in space. A US commercially-owned satellite collided with a crippled Russian military satellite in low-earth orbit. The commercial satellite was owned by Bethseda, Maryland-based Iridium Satellite LLC, which characterized the event as "extremely unusual." However, "the Iridium constellation is uniquely designed to withstand such an event, and the company is taking the necessary...


Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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