Current Affairs Science & Technology

 Facebook has confirmed it is working on a new satellite project, named Athena, that will provide broadband internet connections to rural and underserved areas. The company aims to launch satellite in early 2019. In 2016, Facebook's internet satellite for Africa was lost when SpaceX's rocket exploded.
Source- Hindustan Times

 The Indian Space Research Organisation (ISRO) successfully carried out a flight test for a newly-designedCrew Escape System. It is meant for saving lives of astronauts in an exigency. According to ISRO, the first ‘Pad Abort Test’ demonstrated the safe recovery of the crew module in case of any exigency at the launch pad. It was launched from the Satish Dhawan Space Centre at Sriharikota, Andhra Pradesh. It was the first in a series of tests to ascertain the trustworthiness and efficiency of the Crew Escape System. 
Source- AIR World Service

 The four first-year engineering students from Hindustan Institute of Technology and Science near Chennai, Tamil Nadu have developed the world’s lightest satellite which will be launched from a NASA facility in the US by August 2018. The students built the 4cm ‘cube’ satellite ‘Jaihind-1S’ with a 3D printed outer casing from polylactic acid (PLA) nylon material, making it lighter than a medium sized egg, at just 33.39 grams.
Source- The Hindu

 India successfully test-fired its indigenously developed nuclear capable Long Range Ballistic Missile, Agni-5from the Abdul Kalam Island off the Odisha coast. The state-of-the-art surface-to-surface missile developed by the Defence Research and Development Organisation (DRDO) has a strike range of 5,000 kilometres and can carry a nuclear warhead of more than one tonne. It is about 17 metres long, 2 metres wide and has launch weight of around 50 tonnes. Once this missile is inducted in Services, India will join the super exclusive club of countries with Inter-Continental Ballistic Missiles ICBMs alongside the US, Russia, China, France and the UK.
Source- DD News

 China successfully launched a new Earth observation satellite 'the Gaofen-6' which will be mainly used in agricultural resources research and disaster monitoring. The Satellite was launched on a Long March-2D rocket from the Jiuquan Satellite Launch Centre in northwest China. It was the 276th mission of the Long March rocket series.
Source- The Times of India

 Making a breakthrough in missile technology, India successfully carried out the flight test of Solid Fuel Ducted Ramjet (SFDR) propulsion based missile, according to the Defence Ministry. The technology demonstrator flight test was conducted from the Launch Centre-III of Integrated Test Range at Chandipur in Odisha.
Source- The Economic Times

  Scientists from Newcastle University, UK have created world’s first 3D printed human corneas (3D printed thin protective film over eye) that could solve problem of shortage of available eye donors and help millions of blind people gain sight again. Cornea is outermost layer of the human eye. Its key function is to focus vision. It also barricades eyes against harmful dirt and bacteria. Damage to cornea from injury or infection can distort vision or even lead to blindness.
  • Key Facts
The 3D printed human corneas were produced using bio-ink solution consisting of healthy corneal stem mixed together with alginate and collagen. The combination of alginate (a gel derived from seaweed) and collagen helps to keep corneal stem cells alive and produces material of necessary dimensions which is stiff enough to hold its shape and soft enough to be squeezed out nozzle of 3D printer.

  India successfully test-fired the Indo-Russian joint venture BrahMos supersonic cruise missile from a test range along the Odisha coast to validate some new features. The missile was test-fired from a mobile launcher stationed at Launch pad 3 of the Integrated Test Range (ITR) at Chandipur, according to DRDO.
The trial was conducted to validate its “life extension” technologies developed for the first time in India by DRDO and team Brahmos.
Source- The Livemint
   

  
Scientists have discovered the fastest-growing black hole known in the universe, describing it as a monster that devours (eats) a mass equivalent to our Sun every two days. The astronomers have looked back more than 12 billion years to the early dark ages of the universe when this supermassive black hole was estimated to be the size of about 20 billion suns with a 1% growth rate every one million years. This black hole is growing so rapidly that it's shining thousands of times more brightly than an entire galaxy, due to all of the gases it sucks in daily that cause lots of friction and heat. The energy emitted from this newly discovered supermassive black hole, also known as a quasar, was mostly ultraviolet light but also radiated x-rays. The discovery of the new supermassive black hole was confirmed using the spectrograph on the Australian National University (ANU) 2.3-metre telescope to split colours into spectral lines.
Source- DD News
               

  The California-based aerospace company, SpaceX has blasted off its most powerful Falcon 9 rocket, which is certified to carry humans to space later this year.  The Block 5 Falcon 9 rocket’s main goal for its maiden mission is to propel the first high-orbit communications satellite for Bangladesh, called Bangabandhu Satellite-1. The Block 5 Falcon 9 is eventually meant to carry astronauts to the International Space Station, with the first launch tentatively planned for December 2018.
Source- AIR World Service


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