Nasa Discovery – Proof Aliens Exist?
Yesterday, Nasa unveiled an extremely significant discovery. Short of providing little green men as proof aliens exist, the discovery of an arsenic based bacteria provides significant insight into the possibility and likelihood for life elsewhere in the universe.
Discovered in a Californian lake, the bacteria uses arsenic in its core molecular composition. So what? Well, ALL LIFE on earth is composed of six key elements: oxygen, hydrogen, carbon, nitrogen, sulpher, and phosphorus.
Note that there is no arsenic in that list.
Microbiologist Zita Martins says:
"… life as we know it is not only the normal organisms but also organisms that live in conditions of extremely high temperature or really low temperature or acidic conditions. These are conditions you'd think that no organisms could grow..."
Extreme conditions or not, there have been absolutely no exceptions to the molecular DNA of terrestrial organisms, until now. This discovery is most certainly the tip of a large iceberg, and has the potential to open up an entirely new realm of microbiology and as well as throttle new religious and evolutionary debates.
Director of Avatar Developing 3D Camera for NASA
Movie director James Cameron (films include Avatar and Titanic) is currently helping build a 3D Camera for the next Mar's Rover that NASA will be sending into space sometime next year.
NASA announced this month that Cameron is working with Malin Space Science Systems Inc. of San Diego to build an updated camera that, if completed in time, will be installed on the Mars Science Laboratory rover, which has been dubbed Curiosity. The rover's cameras will be the machine's "science-imaging workhorse," according to the space agency.
Curiosity is scheduled to be launched in 2011.
Earlier this month, Malin delivered two cameras to be installed on the rover's main mast. The cameras, which are set up for high-definition color video, are designed to take images of the Martian surface surrounding Curiosity, as well as of distant objects.
NASA has supplied funding to work with Cameron to build 3D cameras that will have zoom lenses.
"Restoring the zoom is not a science issue, although there will be some science benefits," said Michael Malin, president and chief scientist of Malin Space Science Systems, in a statement. "The fixed focal length [cameras] we just delivered will do almost all of the science we originally proposed. But they cannot provide a wide field of view with comparable eye stereo. With the zoom [cameras], we'll be able to take cinematic video sequences in 3D on the surface of Mars. This will give our public engagement co-investigator, James Cameron, tools similar to those he used on his recent 3D motion picture projects."
Avatar, the highest-grossing movie ever, is largely considered to be the most ambitious 3D film ever produced to date.
Engineers are just beginning work on the new 3D cameras with help from James Cameron. To make it on the new rover, they will have to be designed, assembled and tested before NASA begins its final testing of the rover early next year.
Curiosity is an SUV-sized super rover that will carry cameras, chemistry instruments, environmental sensors and radiation monitors to investigate the Martian surface. According to NASA, all of these instruments are designed to help scientists figure out whether life ever existed on Mars and prepare to send humans to the Red Planet.
The new super rover was scheduled to be sent to Mars in 2009 but its launch has been delayed by funding problems.
NASA has been heavily focused on exploring Mars with two rovers, the Phoenix Mars Lander and an orbiter already studying the planet.
And with the success that NASA has had working on Mars, there has been a lot of excitement brewing to send up a new one.
The two rovers, Spirit and Opportunity, which have worked on Mars, are some of the best pieces of technology that the Jet Propulsion Lab has ever built, said Bruce Banerdt, project scientist for the Mars Exploration Rovers, in a previous interview.

