What are wave energy generators and how do they work?

Take a look back at some of the biggest stories covered in 2020. BtN runs you through the good, the bad and the fascinating things that happened throughout this year. Plus, there's the annual super quiz to test yourself on too.

The government recently announced its plans to get nearly all of Australia's state and territory borders open before Christmas. Meet some kids who are hoping to reunite with their family members. A report has found that wetlands in the Murray Darling Basin aren't getting the water they need. Find out why wetlands are important. Australia's oldest airline, Qantas, has turned 100. Learn about the history of flight in Australia and what the future might hold. With the help of researchers from the University of Melbourne, BtN has put together another BTN Happiness Survey. The finalists for this year's Sleek Geeks competition have been announced. Take a look at some of this year's top entries.

A pharmaceutical company has announced that the trials of its COVID-19 vaccine could be 90% effective. Find out what that means and how researchers go about testing vaccines. Take a look at the Virgin Hyperloop - a type of train that can travel at super high speeds and look at the future of transport. Indigenous activist Charlie Perkins helped draw attention to racial inequality and injustice, learn about about his life and legacy. Next week is Food Safety Week, when we're all encouraged to think a bit more about how we cook, store and eat our food. A school in SA have their own therapy dog who's been specially trained to make kids feel more relaxed.