Educational Headlines - 21 Dec 2018

• Three members of the International Space Station’s crew returned safely to Earth on Thursday, landing in Kazakhstan on a Russian Soyuz craft, NASA reported.
• Increased exposure to artificial light at night not only raises health concerns for humans but also significantly harms the ecosystem, a study has found.
• scientists at the University of Waterloo have created a powder which can absorb CO2, one of the major exponent of air-pollution, from factories and power plants.
• Studies shows that dancing may help elderly women to live a healthy life.