General Awareness

SCIENCE & TECHNOLOGY - May 2015

May 2015

Apr 19, 2018

NASA's New Planet Hunter

NASA blasted off its newest planet hunting spacecraft, TESS, a $337 million satellite that aims to scan 85 per cent of the sky for cosmic bodies where life may exist.

TESS is expected to reveal 20,000 planets beyond our solar system, including more than 50 Earth-sized planets and up to 500 planets less than twice the size of the Earth.

The new spacecraft will focus on nearby exoplanets, those in the range of 30 to 300 light-years away.

Apr 18, 2018

Plastic-eating Enzyme Accidentally Developed

As per reports, scientists have accidentally developed a plastic-eating enzyme that may be used to combat one of the world's worst pollution problems.

The discovery could result in a recycling solution for millions of tonnes of plastic bottles made of PET, which currently persists for hundreds of years in the environment.

Apr 17, 2018

ISRO Completes Final Orbit Raising Operations

The Indian Space Research Organisation (ISRO) has successfully carried out the fourth and final orbit raising operations of navigation satellite, IRNSS-1I.

The achieved perigee height (nearest point to the earth) is 35,462.9 km and apogee height (farthest point to the earth) is 35,737.8 km.

The IRNSS-1I was launched on April 12.

Apr 12, 2018

Navigation Satellite INRSS-1I Put Into Orbit

The Indian Space Research Organisation's navigation satellite INRSS-1I was launched by PSLV-C41 from the spaceport in Sriharikota and successfully placed in the designated orbit. PSLV-C41/IRNSS-1I Mission blasted off from the first launch pad at the Sathish Dhawan Space Centre.

IRNSS-1I is expected to replace IRNSS-1A, the first of the seven navigation satellites, which was rendered ineffective after its three rubidium atomic clocks failed. The seven satellites are part of the NavIC navigation satellite constellation.

Apr 06, 2018

Hubble Precisely Measures Distance to Ancient Star Cluster

Scientists using NASA's Hubble Space Telescope have for the first time precisely measured the distance to one of the oldest objects in the universe, a 13.4 billion-year-old cluster of stars born shortly after the Big Bang. The refined distance yardstick provides an independent estimate for the age of the universe. It will also help astronomers improve models of stellar evolution. Star clusters are the key ingredient in stellar models because the stars in each grouping are at the same distance, have the same age, and have the same chemical composition.

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