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Falcon Heavy prepares for launch

20.03.2014

This year, private space company SpaceX, owned by billionaire Elon Musk, will test launch the Falcon Heavy launch vehicle, which is the already well-known Falcon 9 with two additional modules of similar power on the sides. The capabilities of the rocket are commensurate with the collective thrust of 15 Boeing 747 aircraft.

Falcon Heavy is designed to carry out space missions to Mars, and its 27 Merlin engines are capable of launching a payload weighing 53 tons into low Earth orbit or delivering 13,2 tons to Mars - the full load of passengers, baggage and fuel of a Boeing 737 liner.

SpaceX claims that only one booster has a higher payload rating - NASA's Saturn V, which was used on the Apollo and Skylab missions from 1966 to 1973 and is capable of lifting 118 tons into low Earth orbit. In reality, this is not the case: the Soviet Union operated the Energiya super-heavy rocket, and Russia is going to create carriers with a payload of 80 and 160 tons. NASA is also working on the Space Launch System super-heavy rocket to lift 70 and 130 tons into low satellite orbit.

On March 30, the latest modification of the Falcon 9 will be launched, which will go to the International Space Station. Later, a test launch of the Falcon Heavy rocket will be made from Vandenberg Air Force Base in California.

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Bacteria tape recorder 26.11.2017

Scientists have been able to turn the bacterial immune system into a microscopic tape recorder. With this bacteria tape recorder, Columbia University Medical Center researchers have laid the foundation for a new class of technology that uses bacterial cells for everything from disease diagnosis to environmental observation.

Scientists have modified an ordinary laboratory strain of the most familiar human bacterium that lives in the intestines, Escherichia coli. As a result, bacteria not only record their interactions with the environment, but also record the timing of these interactions.

Scientists have created a microscopic tape recorder by taking advantage of CRISPR-Cas, the immune system of many bacterial species. CRISPR-Cas copies pieces of DNA from invading viruses so that subsequent generations of bacteria can repel pathogens more effectively. As a result, the CRISPR locus of the bacterial genome accumulates a chronological record of all bacterial viruses that the bacterium and its ancestors have survived.

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Now the system can process up to three signals simultaneously and record several days.

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