sexta-feira, 23 de novembro de 2012

Mars radiation fine for humans

Initial readings of cosmic ray radiation on Mars suggest it's about the same as on the International Space Station. Now we just need a spaceship.





With radiation levels on Mars apparently safe, how long will it be before astronauts start exploring the 'Total Recall' planet?(Credit: TriStar Pictures)

"Now, this is the plan. Get your ass to Mars."

We all remember Schwarzenegger motivating himself to go to the Red Planet in "Total Recall" (anyone bother watching the remake?) and sure we'd like to go too. Now NASA's Curiosity Mars rover has determined that radiation levels on the planet's surface are safe for human explorers.

"The astronauts can live in this environment," Don Hassler, principal investigator on Curiosity's Radiation Assessment Detector instrument (RAD), told a news conference.

"Basically, we're finding that the Mars atmosphere is acting as a shield for the radiation on the surface and as the atmosphere gets thicker, that provides more of a shield and therefore we see a dip in our radiation dose," Hassler said.

The findings mark the first time that cosmic rays have been measured on the surface of another planet, and come 100 years after Victor Hess discovered cosmic rays on Earth by using a hot-air balloon.

quarta-feira, 7 de novembro de 2012

Microsoft: Skype and Messenger coming together

The Skype team is planning to replace the Messenger instant-messaging client with Skype messaging a lot sooner than many expected.

After months of leaked bits, Microsoft's Skype division is finally opening the informational tap.

On November 6, the Skype team provided more information about its recently stated plans to ultimately replace Windows Live Messenger with Skype. The planned cutover date is quite aggressive: It's Q1 2013, according to a new Skype blog post.

"We will retire Messenger in all countries worldwide in the first quarter of 2013 (with the exception of mainland China where Messenger will continue to be available)," according to the post. By that time, consumers who want to use instant messaging will have no choice but to use Skype for that. (Business instant messaging will still be largely the province of Microsoft's Lync, though Lync-Skype federation is coming at some point.)

In late October, Skype officials said that Skype would most likely will replace Messenger some day, but declined to provide a public timetable. However, in October, Skype began testing new Windows and Mac beta releases that allowed users to sign in using their Windows Live ID (Microsoft Account) so they could send and receive instant messages and see presence information from those using Messenger.
On the back-end, in the months after Microsoft's acquisition of Skype was finalized, the pair have been moving Skype to use the Windows Messenger infrastructure. Storage of pictures, video and other Skype content is now happening on Windows Azure.

Once users migrate from Messenger to Skype, they will be able to use not just Skype's instant messaging, but also its video calling, Skype's landline calling capability, screen sharing, video calling on mobile phones and with Facebook friends and Group Calling, according to today's post.

The Skype team's ultimate goal is to convince consumers to leave Skype running on their machines all day and use chat as the first place they go when they sign in.

segunda-feira, 5 de novembro de 2012

Anonymous hacking spree hits PayPal

The hacks are apparently just the beginning of document dumps and defacements for its day of protest, the 5th of November, aka Guy Fawkes Day.


The press arm for Anonymous has announced that it has begun its hacking spree for the 5th of November -- Guy Fawkes Day -- and claims to have dumped user and employee account information on accounts from PayPal, Symantec, Australian government Web sites and much more.


Monday's main focus seems to be an anti-surveillance protest -- as with the recen tAnonymous October 20 protest -- with November 5th intent aimed at surveillance systems such as TrapWire and INDECT.

Trapwire and INDECT's opponents believe that the surveillance systems to be direct threats to privacy and certain civil freedoms and that their implementation could constitute human rights violations.

According to the various Anonymous Twitter accounts announcing the hacks and linking to document dumps, this is just the beginning of doc dumps and defacements for its day of protest. News of the protest is being shared on Twitter, Facebook, YouTube, and Pastebin.