February 2017 Current Affairs
23 FEB
NEWS
22 FEB
NEWS
21 FEB
NEWS
20 FEB
NEWS
18 FEB
NEWS
17 FEB
NEWS

January 2017 Current Affairs
31 JAN
NEWS
30 JAN
NEWS
28 JAN
NEWS
27 JAN
NEWS
25 JAN
NEWS
24 JAN
NEWS

December 2016 Current Affairs
31 DEC
NEWS
30 DEC
NEWS
29 DEC
NEWS
28 DEC
NEWS
27 DEC
NEWS
26 DEC
NEWS

November 2016 Current Affairs
30 NOV
NEWS
29 NOV
NEWS
28 NOV
NEWS
26 NOV
NEWS
25 NOV
NEWS
24 NOV
NEWS

October 2016 Current Affairs
31 OCT
NEWS
27 OCT
NEWS
26 OCT
NEWS
25 OCT
NEWS
24 OCT
NEWS
22 OCT
NEWS

Scientists discover rare symmetrical 'Einstein ring'

Scientists discover rare symmetrical 'Einstein ring'
02 June 2016 Current Affairs:  Scientists have discovered one of the most symmetrical Einstein rings a rare astronomical phenomenon created by a galaxy located 10,000 million light years away that is hidden behind a more massive galaxy.

Einstein rings, predicted by Einstein's theory of General Relativity, are quite rare but scientifically interesting. The one discovered by Instituto de Astrofisica de Canarias (IAC) and the University of La Laguna (ULL) in Canary Islands is named the "The Canarias Einstein ring".

An Einstein ring is a distorted image of a very distant galaxy, which is termed "the source". The distortion is produced by the bending of the light rays from the source due to a massive galaxy, termed "the lens", lying between it and the observer.

The strong gravitational field produced by the lens galaxy distorts the structure of space-time in its neighborhood, and this does not only attract objects which have a mass, but also bends the paths of light.

The chance discovery was made by Margherita Bettinelli, of IAC when she was examining data taken through the "Dark Energy Camera" (DECam) of the 4m Blanco Telescope at the Cerro Tololo Observatory in Chile.

This "Canarias Einstein ring" is one of the most symmetrical discovered until now and is almost circular, showing that the two galaxies are almost perfectly aligned, with a separation on the sky of only 0.2 arc seconds.

The source galaxy is 10,000 million light years away from us. Due to the expansion of the universe, this distance was smaller when its light started on its journey to us, and has taken 8,500 million years to reach us.

Studying these phenomena gives us especially relevant information about the composition of the source galaxy, and also about the structure of the gravitational field and of the dark matter in the lens galaxy.


February 2017 Current affairs
23 FEB
NEWS
22 FEB
NEWS
21 FEB
NEWS
20 FEB
NEWS
18 FEB
NEWS
17 FEB
NEWS

January 2017 Current affairs
31 JAN
NEWS
30 JAN
NEWS
28 JAN
NEWS
27 JAN
NEWS
25 JAN
NEWS
24 JAN
NEWS




December 2016 Current affairs
31 DEC
NEWS
30 DEC
NEWS
29 DEC
NEWS
28 DEC
NEWS
27 DEC
NEWS
26 DEC
NEWS

November 2016 Current affairs
30 NOV
NEWS
29 NOV
NEWS
28 NOV
NEWS
26 NOV
NEWS
25 NOV
NEWS
24 NOV
NEWS

October 2016 Current affairs
31 OCT
NEWS
27 OCT
NEWS
26 OCT
NEWS
25 OCT
NEWS
24 OCT
NEWS
22 OCT
NEWS



FreshersLive - No.1 Job site in India. Fresherslive Current Affairs 2017 section offers informative quiz questions with answers regarding latest current affairs today for all sorts of competitive exams like UPSC, TNPSC , IFS, IAS, IPS, railway exams (RRB) and banking exams like IPBS PO, IPBS clerk, Federal Bank PO, ICICI, SBI, RBI legal officer & Grade officer posts and much more. Register with us to get latest Current Affairs Updates. Also get latest Current Affairs news and quiz Updates for free alerts daily through E-mail

Get Daily Current Affairs to your Email

You can Unsubscribe us at any time.

Get Daily Current Affairs to your Email

You can Unsubscribe us at any time.