Venus' strange rotation was likely triggered by a high-velocity, moon-sized impactor

According to UNESCO, around 250 million children (16%) globally are out of school, although they are of an age to be at school in their countries. Available evidence suggests that out-of-school numbers are extremely high in conflict-affected countries, though the exact number is hard to quantify. For example, in the Central African Republic, South Sudan and Eritrea, more than 50% of primary school-age children are not going to school.

Coatings are everywhere. A thin protective layer, often barely visible. They keep out moisture, sunlight and rust, helping products last longer. Think of laminate on kitchen cabinets, automotive body coatings or the outer layer of a soda can or chip bag.

Traditional legal systems around the world are increasingly ill-equipped to cope with the fast-moving impact of climate change on communities, new research warns. Courts and authorities that control planning and local services must follow rigid rules that are based on people's rights and environmental protection. However, changes to make laws more dynamic and responsive could help those who enforce them move beyond reacting to events and become more proactive as they manage urban spaces.