Thursday January 17, 2019
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Astronomers Capture 15,000 Galaxies Using Hubble Telescope

Hubble can provide some of the most sensitive space-based ultraviolet observations possible.

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NASA's Hubble Space Telescope has captured a formation of galaxies that looks like a smiling face, said the US space agency. Flickr

On one of the largest panoramic views of star birth, astronomers using the ultraviolet vision of NASAs Hubble telescope have assembled an image that features approximately 15,000 galaxies, about 12,000 of which are forming stars.

This image is a portion of the GOODS-North field, which is located in the northern constellation Ursa Major, NASA said in a statement Thursday.

The image straddles the gap between the very distant galaxies, which can only be viewed in infrared light, and closer galaxies, which can be seen across a broad spectrum.

Galaxy, hubble telescope
Representational Image of Galaxy. Wikimedia Commons.

The light from distant star-forming regions in remote galaxies started out as ultraviolet, but the expansion of the universe shifted the light into infrared wavelengths.

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By comparing images of star formation in the distant and nearby universe, astronomers glean a better understanding of how nearby galaxies grew from small clumps of hot, young stars long ago, NASA said.

Because Earth’s atmosphere filters most ultraviolet light, Hubble can provide some of the most sensitive space-based ultraviolet observations possible. (IANS)

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NASA Planning to Use Blockchain Technology For Air Traffic Management

The prototype demonstrates how this method can be economically and rapidly deployed in a scalable modular environment, Reisman said

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Kepler, NASA, tissue
NASA to use Blockchain technology for air traffic management. Pixabay

US space agency NASA is planning to advance its technology by adding Blockchain to secure air traffic services and support, the media reported.

The agency will work with an open source Blockchain platform called “Hyperledger Fabric” that is specifically designed for enterprise transactions that resemble typical air traffic management interactions, Ronald J. Reisman, an aero-computer engineer at the NASA Ames Research Centre, said in a statement.

Blockchain would address the potential issues of privacy, prevent spoofing, denial of service and other attacks, Reisman said.

He asserted that Blockchain presents an engineering prototype that embodies a design and method that may be applied to mitigate security issues.

NASA, Hubble, Keplar, asteroids
Blockchain would address the potential issues of privacy, prevent spoofing, denial of service and other attacks, Reisman said. Flickr

“The design innovation is the use of an open source permissioned Blockchain framework to enable aircraft privacy and anonymity while providing a secure and efficient method for communication with air traffic services, operations support, or other authorised entities,” he noted.

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The new framework also features certificate authority, smart contract support, and higher-bandwidth communication channels for private information that may be used for secure communication between any specific aircraft and any particular authorised member.

The prototype demonstrates how this method can be economically and rapidly deployed in a scalable modular environment, Reisman said. (IANS)