NASA announced that this weekend it will start with its commercial weightless flights program. All the scheduled commercial flights have been completely booked in advance. Further bookings of these commercial weightless flights will be opened sometime during the later half of this year and flight schedules will be fixed accordingly. These flights will take off from the ‘Moffet Field’, California, according to NASA.

NASA and “Zero Gravity” of Las Vegas have entered in to an agreement for these commercial flights. This “reimbursable Space Act Agreement” between the two agencies, i.e. NASA’s “Ames” and ‘Zero-G’ will involve a permission to utilize the airfield facilities for undertaking these flights. Both the agencies have also agreed upon to carry out further research work in cooperation. This research will begin this fall, according to NASA.

“G-Force One” is the name of a specified and modified Boeing 727-200 aircraft which will be conducting its commercial weightless flights for the first time. This Saturday, this aircraft will have onboard the passengers who have booked their flights.

The weightless flights will make all these passengers feel the same feelings of weightlessness as the astronauts feel in such a situation when the aircraft or the spacecraft is orbiting the earth. Passenger will also be subjected to the same gravity conditions as the astronauts generally experience on the moon and the mars. Although the period of such weightlessness and gravity will not be for a longer time but it will facilitate with brief slots during the flight.

Passengers will be flying like a superman and will also be floating in midair in the same manner as the NASA astronauts perform actually at the NASA center, says Peter H. Diamandis, chairman of ZERO-G.

These flights will take off during the daytime only and it will not disturb any other concurrent programs of NASA. Zero-G will make all reimbursements all the costs for using the runway and other support facilities.”The Boeing 727-200 is one of the quietest aircrafts in service”, NASA said.

Commercial weightless flights were first offered by the Zero-G to the common people in the year 2006.Flights took off from the NASA’s Kennedy Space Center in Florida. Zero-G conducted seven such flights every week and in all the company conducted 280 such flights in the year 2006. This time, with a new agreement with NASA, the company hopes to fulfill the growing demands of commercial space industry.

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Science has taken a new leap in the field of genes as their ability to recognize similarities in each other from a distance, without any proteins or other biological molecules aiding the process, has been discovered according to new research published this week in the “Journal of Physical Chemistry “.

This new study sheds light on the ability of the genes – which are parts of double-stranded DNA with a double-helix structure containing a pattern of chemical bases – to recognize other genes with a similar pattern of chemical bases.

This study has been able to provide the scientists a useful clue to understand the mechanism of the genetic identification and alignment with each other in order to facilitate the process of ‘homologous recombination’ - whereby two double-helix DNA molecules come together, break open, swap a section of genetic information, and then close themselves up again.

Recombination is an important process which plays a key role in evolution and natural selection, and also controls the body’s ability to repair damaged DNA. The information was really confined in regards to the genes ability to recombine them till now.

A series of experiments have been conducted to reach the conclusion that long pieces of identical double-stranded DNA could identify each other merely as a result of complementary patterns of electrical charges which they both carry. This happens without any physical contact between the two molecules, or the facilitating presence of proteins. It also found that the length of the genes also determines the strength of the recognition mechanism between the two genes.

The behavior of fluorescently tagged DNA molecules in a pure solution was observed which led to the discovery that chances of DNA molecules with identical patterns of chemical bases to recognize and recombine than DNA molecules with different sequences.
A new set of experiments are designed to explore further how these interactions work, the impact of gene length on this mechanism and possibility to carry out this interaction in a highly complex mechanism of a living cell , which is till now limited to the closed environment of a test tube team.

Understanding this mechanism of the primary recognition stage of genetic recombination promises a strong aid to control the genetically determined diseases and also an important breakthrough in the field of biotechnologies and gene therapies.

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