News in Short

• A team of marine biologists has discovered two new species of six-gilled saw sharks living in the waters of the West Indian Ocean.
• Saw sharks are known for their long, flat snouts studded with teeth, which they use to slash their prey to ribbons.
• Most sawsharks have five gill slits on each side of their bodies, as is typical for sharks. Until now, the only sawshark species thought to have six gill slits, known as Pliotrema warreni, was found in the waters around South Africa and southern Mozambique.

• In a new paper published in Science Advances describes how the swirling ring of photons around a black hole could be the key to unlocking sharp photos.
• The world’s first photo of black hole was published back in April 2019, and scientists have been laboring to find ways to capture sharper images of the mysterious regions of spacetime.
• Each successive ring has about the same diameter but becomes increasingly sharper because its light orbited the black hole more times before reaching the observer.

• Indian Railways has cancelled all the passenger trains till March 31 as the number of coronavirus cases in the country climbed.
• Indian Railways earlier announced to not charge any cancellation fee for the cancelled trains in the view of coronavirus pandemic.
• Train passengers will get 100% refund for these cancelled trains. Railways also eased refund rules for passengers who had booked tickets to travel between March 21 and April 15.

• Millions of people across the country stayed indoors in an unprecedented shutdown on PM Modi's appeal for a 'Janata curfew' to help check the spread of coronavirus.
• As the 14-hour 'Janata curfew' got underway at 7 am, people kept themselves indoors as part of the social distancing exercise to help stop the spread of the virus. 
• All markets and establishments except those dealing in essential goods and services were closed for the day. The 'Janata Curfew' ended at 9 pm.

• Grammy-winning country singer Kenny Rogers died on Friday night at the age of 81.
• Rogers, a three-time Grammy winner and a Country Music Hall of Famer, was best known for songs like The Gambler and his 1983 duet with Dolly Parton Islands in the Stream.
• After beginning his career in the 1950s with a jazz group, Rogers went solo in the 1970s and released his breakthrough single Lucille in 1977.