Who won the 9th Hockey India Senior Women National Championship (B Division) held in Hisar, Haryana?

Scientists have long been known that Mercury and the Earth have metallic cores. Like Earth, Mercury's outer core is composed of liquid metal, but there have only been hints that Mercury's innermost core is solid. Now, in a new study, scientists from NASA's Goddard Space Flight Center in Greenbelt, Maryland have found evidence that Mercury's inner core is indeed solid and that it is very nearly the same size as Earth's inner core. To explore what the core of Mercury is made of the science team used several observations from the NASA's MESSENGER (Mercury Surface, Space Environment, GEochemistry, and Ranging) mission looking at the planet's spin and gravity. The findings of Mercury's solid inner core not only help scientists better understand Mercury but also offer clues about how the solar system formed and how rocky planets change over time. The study is published in Geophysical Research Letters.

The European T20 competition set to take place in Ireland, Scotland, and the Netherlands for the first time later this year has been officially named as 'Euro T20 Slam'. The competition which was unveiled earlier in 2019, will consist of six-city based franchises, two from each of the host nations.

Mexico's "Roma" is the winner of the best foreign language film at the Oscars.

Mumbai Indians defeated Chennai Super Kings by one run in a thrilling final in Hyderabad yesterday to become the IPL champions for the record fourth time. The CSK, who were chasing a score of 150 set by Mumbai Indians, were restricted to 148 for 7 in the stipulated 20 overs.

Cricket is set for a return at the Asian Games after the Olympic Council of Asia (OCA) included it in the sports programme for the 2022 edition in Hangzhou. The decision was taken at the OCA's General Assembly in Bangkok.

Federation Internationale de Football Association (FIFA) released the Global football ranking topped by Belgium who have 1727 points as per FIFA calculations. So Belgium is going to end the year as No. 1 ahead of World Champion France. France ranked 2nd with 1726 points and Brazil ranked third with 1676 points. India ranked at 97th Position in the latest FIFA ranking released on 20th December 2018.

India wrapped up their campaign at the Asian Wrestling Championships at Xi'an, China, on a resounding note with 16 medals. Men's freestyle wrestlers bagged eight medals comprising one gold, three silver and four bronze. Women wrestlers claimed four bronze. These included Harpreet Singh's silver in 82kg and bronze by Gyanender in 60kg on the final day of the competitions.

Indian squash player Ramit Tandon has won the 2019 Seattle Open title by defeating Mohamed El Sherbini of Egypt in the final in USA.

The organizers of the 2020 Summer Games in Tokyo have chosen a Japanese motif - the cherry blossom for their Olympic torch. The design, unveiled,makes use of not only a traditional "Sakura-mon" blossom emblem but also the same aluminum extrusion technology used in the manufacture of the country's well-known bullet trains. It will generate five flames from a cluster of petal-shaped cylinders.The torch is made using the same cutting-edge technology as in the production of japan's bullet trains and is formed of a seamless, single piece of aluminium. It measures 71cm in length and weighs 1.2kg.

5 Indians have been appointed as members of various Technical Committees of Asian Gymnastics Union for a period of 4 years, from 2019 to 2022. They are Deepak Kabra - Men's Artistic Gymnastics; Akshata Shete - Rhythmic Gymnastics; Sumith MR - Acrobatic Gymnastics; Makarand Joshi - Aerobic Gymnastics; Narayan Shashi - Gymnastics for All.