General Awareness

SCIENCE & TECHNOLOGY - July 2019

Jul 2019

Jun 11, 2022

Cabinet Allows Transfer of 10 In-orbit Communication Satellites from Govt. of India to New Space ...

The Union Cabinet approved the transfer of 10 in-orbit communication satellites from Government of India to M/s. New Space India Limited, NSIL, a wholly owned Public Sector Enterprise of the Centre under the administrative control of the Department of Space. The Cabinet has also approved increasing the authorized share capital of NSIL from one thousand crore rupees to seven thousand 500 crore rupees.
Transfer of these assets to NSIL will further provide the desired financial autonomy to the company to realize capital intensive programmes aor projects and thereby offering huge employment potential and technology spin-off to other sectors of the economy. This approval is expected to trigger domestic economic activity in space sector and increase India's share in the global space market.

Jun 10, 2022

NASA to Study UFOs Despite 'Reputational Risk'

NASA is launching a study of UFOs as part of a new push toward high-risk, high-impact science. The space agency announced that it is setting up an independent team to see how much information is publicly available on the matter and how much more is needed to understand the unexplained sightings. The experts will also consider how best to use all this information in the future. NASA's science mission chief, Thomas Zurbuchen acknowledged the traditional scientific community may see NASA as "kind of selling out" by venturing into the controversial topic, but he strongly disagrees.
NASA considers this a first step in trying to explain mysterious sightings in the sky known as UAPs, or unidentified aerial phenomena. The study will begin this fall and last nine months, costing no more than $100,000. It will be entirely open, with no classified military data used.

Jun 09, 2022

China Releases World's 'most Detailed' Map of Moon

China released a new comprehensive geologic map of the moon, the "most detailed" to date, which is expected to make a vital contribution to scientific research, exploration and landing site selection on the Earth's only natural satellite. Chinese scientists from multiple research institutes and universities have created the high resolution topographic map based on data from China's lunar exploration Chang'e project and other data and research findings from international organisations. The map includes 12,341 impact craters, 81 impact basins, 17 rock types and 14 types of structures, providing abundant information about geology of the moon and its evolution.
The new comprehensive geologic map of the moon is to a scale of 1:2,500,000, the "most detailed to date". Previously, the USGS Astrogeology Science Centre had released a moon map to a scale of 1:5,000,000 in 2020.

Jun 07, 2022

China Launches Six-month Space Mission

China successfully launched three astronauts on a six-month mission to complete the construction of the country's space station currently orbiting the Earth. The Shenzhou-14 spacecraft carrying astronauts Chen Dong, Liu Yang and Cai Xuzhe was lifted off from the Jiuquan Satellite Launch Center in northwest China.
The Shenzhou 14 crew will spend six months on the Tiangong station, during which they will oversee the addition of two laboratory modules to join the main Tianhe living space that was launched in April 2021.
The station will operate in low-Earth orbit at an altitude between 340 to 450 kilometres. Once completed, it will have a lifespan of 10 years, but experts believe it could last more than 15 years with appropriate maintenance and repairs.

Jun 05, 2022

Astronomers Discover 116,027 New Variable Stars

Variable stars are celestial objects whose brightness waxes and wanes over time, especially if observed from our perspective on Earth. In the study, Dr. Christy and colleagues analyzed data from ASAS-SN as well as from ESA's Gaia mission, the Two Micron All Sky Survey (2MASS) and the AllWISE catalog. They used a machine learning algorithm to generate a list of 1.5 million candidate variable stars from a catalog of about 55 million isolated stars. Afterward, they whittled the number of candidates down even further. Of the 1.5 million stars they studied, 378,861 turned out to be real variable stars.
More than half were already known to the astronomy community, but 116,027 of them proved to be new discoveries, including over 111,000 periodic variables and 5,000 irregular variables.

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