ESA prepares to wake up comet-bound spacecraft
At 5:00 a.m. EST on January 20, the most important alarm clock in the solar system will wake up the European Space Agency's (ESA) sleeping Rosetta spacecraft. Rosetta is chasing Comet 67P/Churyumov–Gerasimenko and, since its launch in 2004, has ...
January 17, 2014
“Sleeping beauty” wakes up from deep space hibernation
Thus today, still about 5.6 million miles (9 million km) from the comet, Rosetta's pre-programmed internal “alarm clock” woke up the spacecraft. After warming up its key navigation instruments, coming out of a stabilizing spin, and aiming its main ...
January 21, 2014
'Anonymous' hackers hit Playstation and Sony websites in revenge for lawsuit
An infamous hacking group that goes by the name 'Hack Anonymous' has attacked Sony's PlayStation and PlayStation Network websites. The group has declared war on Sony after it claimed that the current Sony vs George Hotz lawsuit is an attack on free ...
April 5, 2011
EST on January 20, the most important alarm clock in the solar system will wake up the European Space Agency’s (ESA) sleeping Rosetta spacecraft. To prepare for its long sleep, Rosetta was oriented so that its solar arrays faced the Sun and put into a once-per-minute spin for stability. Now, 31 months later, Rosetta’s orbit has brought it back to within 418 million miles (673 million kilometers) of the Sun, and there is finally enough solar energy to power the spacecraft fully again. It is time to wake up. Rosetta’s computer is programmed to carry out a sequence of events to re-establish contact with Earth on January 20, starting with an “alarm clock” at 5:00 a. m. EST. A slight adjustment will be made to Rosetta’s orientation to ensure that the solar arrays are still facing directly toward the Sun before the startrackers are switched on to determine the spacecraft’s attitude. Once that has been established, Rosetta will turn directly toward Earth, switch on its transmitter and point its high-gain antenna to send its signal to announce that it is awake. Because of Rosetta’s vast distance — just over 501 million miles (807 million km) from Earth — it will take 45 minutes for the signal to reach the ground.
It was a fairy-tale ending to a tense chapter in the story of the Rosetta space mission this evening as the European Space Agency (ESA) heard from its distant spacecraft for the first time in 31 months. Rosetta is chasing down Comet 67P/Churyumov-Gerasimenko, where it will become the first space mission to rendezvous with a comet, the first to attempt a landing on a comet’s surface, and the first to follow a comet as it swings around the Sun. Operating on solar energy alone, Rosetta was placed into a deep space slumber in June 2011 as it cruised out to a distance of nearly 500 million miles (800 million kilometers) from the warmth of the Sun, beyond the orbit of Jupiter. Now, as Rosetta’s orbit has brought it back to within 418 million miles (673 million km) from the Sun, there is enough solar energy to power the spacecraft fully again. Thus today, still about 5. 6 million miles (9 million km) from the comet, Rosetta’s pre-programmed internal “alarm clock” woke up the spacecraft. It was immediately confirmed in ESA’s space operations center in Darmstadt and the successful wake-up announced via the @ESA_Rosetta twitter account, which tweeted: “Hello, World.
An infamous hacking group that goes by the name 'Hack Anonymous' has attacked Sony's PlayStation and PlayStation Network websites. The group has declared war on Sony after it claimed that the current Sony vs George Hotz lawsuit is an attack on free speech and that Sony is abusing customer's rights through its relentless legal assault on the PS3 jailbreaker. On Sunday, the group released a statement that promised an attack against the Japanese tech giant on behalf of Hotz and another hacker who goes by the name Graf_Chokolo. Hotz, a 21-year-old New Jersey security researcher, became notorious for jailbreaking the first iPhone at the age of 17. He was recently ordered by a San Francisco judge to turn over his computer equipment as part of Sony’s legal effort and submit... The statement also refers to Sony’s recent court win that allowed the company to collect the IP addresses of any user who had visited GeoHot’s site, the alias used by George Hotz. The group criticised the judges and other 'legal entities' for aiding Sony in its 'nefarious undertakings' and claimed they are 'no better than Sony itself'. The 'message to Sony' said: 'It has come to our attention that you have decided to interfere in the free flow of information.