General Awareness

SCIENCE & TECHNOLOGY - June 2017

Jun 2017

Aug 11, 2017

Cassini's Grand Finale

NASA's Cassini mission which began in 1997 is currently in its grand finale phase. At present, the spacecraft is performing flybys of the planet Saturn, making its closest approaches to the rings.
Cassini will end its journey in September this year by performing a death plunge into the ringed planet.

Aug 10, 2017

Black Holes in Milky Way

Black holes and their behaviour have long since been no less than an enigma for scientists to decipher.
In a new development, scientists have said that the Milky Way may be home to as many as 100 million black holes.

Four Earth-sized Planets Discovered

TRAPPIST-1 – scientists have discovered four Earth-sized planets orbiting the nearest Sun-like star. They are approximately 12 light-years away.
Two of the planets are super-Earths located in the habitable zone of the star.
The planets have masses as low as 1.7 Earth mass, making them among the smallest planets ever detected around nearby Sun-like stars.

Aug 09, 2017

Fastest Ever Light Pulse

Beating its own record set in 2012, scientists have demonstrated the fastest light pulse ever developed – a 53-attosecond X-ray flash.
The previous record was a 67-attosecond extreme ultraviolet light pulse.
An attosecond is unimaginably fast at one-quintillionth of a second.

Aug 04, 2017

Exoplanet with Glowing Water Atmosphere

For the first time, scientists have discovered glowing water molecules in the atmosphere of a planet outside our solar system.
It is the strongest evidence to date for a stratosphere on a planet outside our solar system, or exoplanet.
The planet called WASP-121b is a gas giant exoplanet commonly referred to as a hot Jupiter.

Aug 03, 2017

Sun's Core Rotates Faster Than Its Surface

NASA's Solar and Heliospheric Observatory (SOHO) and the European Space Agency (ESA) have come across a big discovery that involves the interior of the sun.
Solar scientists have found evidence of a type of seismic wave in our sun. Also called g-modes, these low-frequency waves reveal that the solar core is rotating some four times faster than the solar surface.
The rotation of the solar core may give a clue to how the sun formed.

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