SCIENCE CURRENT AFFAIRS
- Scientists from Ireland have claimed discovery of a new human organ named the mesentery that exists in the digestive system. It will be human body’s 79th organ. Mesentery connects the intestine to the abdomen. The organ was previously thought to consist of fragmented and disparate structures.
- India formally became an associate member of CERN (European Organization for Nuclear Research) with the government completing the internal approval procedures for the agreement it signed in November 2016.
- National Aeronautics and Space Administration (NASA) has approved a mission to explore 16 Psyche, an iron-rich asteroid. As part of the mission, NASA craft will be launched in 2023, and will arrive at Psyche in 2030. The mineral contents on the asteroids are worth over 100-thousand times the value of the entire world economy.
- TeamIndus, a private aerospace starup company is planning to send a spacecraft to the moon aboard an Indian Space Research Organisation (ISRO) rocket on December 28, 2017.
- Scientists from Israel have created the world’s first ‘water-wave laser’ that emits a beam through the interaction of light and water waves.
- Scientists from Russia have developed a new unique, low-cost method for producing high-quality nuclear fuel using electricity. It is alternative novel method that forms the basis of powder metallurgy and involves electric pulse sintering under pressure.
- The 7th World Ayurveda Congress (WAC) was held from December 2 to 4, 2016 at Science City in Kolkata, West Bengal.
- A team of international astronomers has discovered Vela super cluster, one of the biggest super galaxy clusters near the Milky Way.
- Scientists from Canada have developed the first functional pacemaker cells using human pluripotent stem cells. The cells can regulate heart beats with electrical impulses. It paves the way for alternate biological pacemaker therapy.
- The World Health Organization (WHO) has expressed confidence that a prototype vaccine for Ebola called rVSV-ZEBOV may be 100% effective in protecting against the deadly virus.
- Japan Aerospace Exploration Agency (JAXA) has successfully launched a solid fuel rocket named Epsilon-2 from the Uchinoura Space Center in southern Japan.
- China successfully launched TanSat, a global carbon dioxide (CO2) monitoring satellite to understand the effects of climate change.
- Scientists for the first time have discovered the so-called molten jet stream within the Earth’s molten iron core using latest data obtained from three European satellites called Swarm.
- India ranked 4th in the Global Wind Power Installed Capacity index with cumulative installed wind power generation capacity of 25,088 MW in 2015.
- The world’s first cloned goat bearing superfine Cashmere wool was born in north China’s Inner Mongolia Autonomous Region.
- NASA has successfully launched constellation of eight mini-satellites as part Cyclone Global Navigation Satellite System (CYGNSS) into space to improve hurricane forecasting.
- China has launched its first fully-owned overseas satellite ground station near the North Pole enabling it to collect satellite data anywhere on the Earth at fastest speed in the world. It is formally known as China Remote Sensing Satellite North Pole Ground Station. It is located about 200 kms north of the Arctic Circle in Sweden.
- National Aeronautics and Space Administration (NASA) is building a robotic spacecraft dubbed as ‘Restore-L Spacecraft’ to refuel, repair satellites currently in orbit. In this regard, NASA has awarded a $127 million contract to California-based satellite company Space Systems/Loral to build Restore-L Spacecraft.
- Indian Space Research Organisation (ISRO) has successfully launched remote sensing satellite Resourcesat-2A into its dedicated orbit.
- It carries three payloads viz. high resolution Linear Imaging Self Scanner (LISS-4) camera, medium resolution LISS-3 camera, and coarse resolution Advanced Wide Field Sensor (AWiFS) camera. These three cameras of different resolution.
- These cameras will give regular micro and macro information on land and water bodies below, forests, farm lands and crop extent, coastal information, mineral deposits, rural and urban spreads besides helping in disaster management.
- Atomic clock at National Physical Laboratory (NPL) in New Delhi added ‘leap second’ (extra one second) to the Indian Standard Time (IST) at 5:29.59 hours on 1 January 2017 to synchronise with the Earth’s rotational clock.
- Paris based International Earth Rotation and Reference System Service (IERS) tells when to add leap seconds on the basis of difference between UTC and UT1.
- Scientists from Botanical Survey of India (BSI) have discovered a new species of Zingiber (commonly referred as ginger) from the Andaman and Nicobar Islands. The new species has been named as Zingiber pseudosquarrosum and belongs to genus Zingiber. It is used for its medicinal values by the local Particularly Vulnerable Tribal Groups (PVTGs) of the Andamans.
- China successfully launched first commercial mission using an updated version of the low-cost Kuaizhou-1A rocket. As part of the mission three satellites JL-1, CubeSats XY-S1 and Caton-1 were launched into space.
- Researchers from Midwestern University have identified the function of the human appendix, often viewed as a vestigial organ with little-known use.
It was found that species with appendix have higher concentrations of immune (lymphoid) tissue in cecum (part of the large intestines), thereby suggesting that appendix could serve as a secondary immune organ. The appendix might also function as a “safe house” for helpful gut bacteria as lymphatic tissue can stimulate the growth of beneficial gut bacteria. Thus, fulfilling an important role in our bodies.
- Union Ministry of Health & Family Welfare will roll out measles-rubella (MR) vaccine in the Universal Immunisation Programme (UIP) in February 2017. In addition, Pneumococcal conjugate (pneumococcal pneumonia) vaccine will also become a part of the UIP basket in three other states from March 2017.
- The UIP program consists of vaccination for 10 diseases- Tuberculosis, Diphtheria, Tetanus, Pertussis (whooping cough), Poliomyelitis, measles, Hepatitis B, Diarrhoea, Japanese Encephalitis and Pneumonia.
- Outdoor caged trials of genetically modified mosquitoes waere launched in Dawalwadi, Badnapur in Jalna district of Maharashtra to demonstrate the efficiency this technique to suppress wild female mosquito populations that transmit dengue, chikungunya and Zika. The trials are conducted by Oxitec and uses the Release of Insects carrying Dominant Lethal genes (RIDL) technology.
- Scientists have claimed that they have discovered oldest fossils on Earth in rocks from Quebec, Canada. Carbon dating techniques suggest that these rocks are at least 3.8 billion years old and might even be 4.3 billion years old.
- Scientists using Large Hadron Collider accelerator (LHC) at CERN (European Organisation for Nuclear Research) have discovered a new system of five particles all in a single analysis. This discovery is unique as observing five new states all at once is very rare. According to the standard convention, these particle states were named Oc(3000)0, Oc(3050)0, Oc(3066)0, Oc(3090)0 b Oc(3119)0.
- Geologists have claimed discovery of new geological continent named Zealandia submerged beneath the south-west Pacific Ocean. Zealandia is around 4.5-million square km land mass and is 94% under water. Only its highest points — New Zealand and New Caledonia are visible.
- Scientists from Tohoku University in Japan have claimed that Silicon (Si) is the ‘missing element’ in the Earth’s core. This discovery could help us to better understand how our world formed.
- Astronomers from NASA (National Aeronautics and Space Administration) for the first time have discovered seven new Earth-sized exoplanets that may be able to sustain life. The planets were detected using NASA’s Spitzer Space Telescope and several ground-based observatories including Trappist robotic telescope at La Silla, Chile. Key Facts These exoplanets are orbiting dwarf star named Trappist-1, which at 39 light years away. They could have some liquid water and maybe supporting life.