Aurora Australis

        Among the views of Earth afforded astronauts aboard the +International Space Station (ISS), surely one of the most spectacular is of the aurora. These ever-shifting displays of colored ribbons, curtains, rays, and spots are most visible near the North (aurora borealis) and South (aurora australis) Poles as charged particles (ions) streaming from the Sun (the solar wind) interact with Earth’s magnetic field.

While aurora are generally only visible close to the poles, severe magnetic storms impacting the Earth’s magnetic field can shift them towards the equator. This striking aurora image was taken during a geomagnetic storm that was most likely caused by a coronal mass ejection from the +Sun on May 24, 2010. The ISS was located over the Southern Indian Ocean at an altitude of 350 kilometers (220 miles), with the astronaut observer most likely looking towards Antarctica (not visible) and the South Pole.
       The aurora has a sinuous ribbon shape that separates into discrete spots near the lower right corner of the image. While the dominant coloration of the aurora is green, there are faint suggestions of red left of image center. Dense cloud cover is dimly visible below the aurora. The curvature of the Earth’s horizon (the limb) is clearly visible, as is the faint blue line of the upper atmosphere directly above it (at image top center). Several stars appear as bright pinpoints against the blackness of space at image top right.

      Auroras happen when ions in the solar wind collide with atoms of oxygen and nitrogen in the upper atmosphere. The atoms are excited by these collisions, and they typically emit light as they return to their original energy level. The light creates the aurora that we see. The most commonly observed color of aurora is green, caused by light emitted by excited oxygen atoms at wavelengths centered at 0.558 micrometers, or millionths of a meter. (Visible light is reflected from healthy (green) plant leaves at approximately the same wavelength.) Red aurora are generated by light emitted at a longer wavelength (0.630 micrometers), and other colors

Iphone Jail Breaking

Jailbreaking is the process to unlock the iPhone and iPod touch devices to permit the installation of third-party applications. It can also add ringtones or change wallpaper on iPhone. It opens up the file system of iPhone so that it can be accessed from the computer. Attackers use different techniques to jailbreak the iPod; after jailbreaking, they can install malicious code or software, which helps to access the information from the iPod. Some tools used for jailbreaking, include: 

1. iDemocracy :

          iDemocracy is the iPhone jailbreak and third-party app installation solution for the Windows platform. It installs Installer.app (for 3rd party apps/games), custom ringtones, and SIM unlock. It has new features like free ringtones on firmwares, as well as File Browsing. Go here to know more : http://code.google.com/p/idemocracy/

2. iActivator :

          iActivator is a Cocoa-based application for the Mac. It is a graphical interface providing iPhone activation/deactivation tools, and methods for breaking/restoring the jail. Go here to know more : http://www.iphone-hacks.com/2007/07/

3. iNdependence :

          iNdependence is a Cocoa-based application for Mac OS X which provides an interface for jailbreak, activation, SSH installation, and ringtone/wallpaper/application installation on your iPhone. It allows unauthorized third-party application installation on your iPhone. Go here to know more : http://code.google.com/p/independence/ ;

4. iFuntastic :

           iFuntastic is an iPhone hacking and modification tool. It provides a GUI for almost any iPhone modification task. It can dig into your iPhone and edit images and logos. It can replace any system sounds and color iChat SMS balloons. It has full file browser feature, which simply browses the iPhone's internal file system, and edit UI images. Go here to know more: http://www.tuaw.com/tag/iFuntastic/

5. AppSnap : 

          AppSnapp is a tool for jailbreaking and allowing the installation of non-sanctioned third-party applications to the iPhone. This tool jailbreak the iPhone or iPod Touch, pushes the Installer.app to the device, which contains a catalog of native applications that can be installed directly over a WiFi or EDGE connection. It automates the process on iPhones running software/firmware. It can be completed purely using the iPhone without interacting with a Mac or Windows computer. Go here to know more : http://jailbreakme.com/ ;

6. iPhoneSimFree : 

           iPhoneSimFree is used to unlock the iPhone. It is capable of completely restoring/repairing software unlocked "bricked" iPhone. Go for detail : http://www.iphonesimfree.com/cgi-bin/iphonesimfree/engine.pl?page=home  ;

7. anySIM :

            anySIM is a GUI-based SIM unlocking solution for iPhone. This application works only on VIRGIN 1.0.2 to 1.1.1 phones. It is described as fully automatic, needing only to be copied to a "jailbroken" iPhone and launched from the springboard interface.Go here to know more about it: http://www.iphonestalk.com/anysim-v1-1-free-gui-based-sim-unlock-tool-for-virgin-iphone-os-v1-1-1-released/