Alexia Attwood explains how lockdowns, social distancing, and remote working have become the norm for many people over the course of 2020.

Jeremy Fernandez explains what the vaccines do once they're inside the body and how they stop the coronavirus from making people sick.

Before a single dose has been administered in Australia, the rest of the world is racing to get shots in arms. Casey Briggs looks at what it will take to catch up and when we will get over the finish line.

China correspondent Bill Birtles examines Australia's strained trading relationship with China, how it got to this point, the future of the trading partnership, and what can be done to patch things up.

The way we live, learn and communicate is dominated by technology that is largely at our fingertips. And it all began 50 years ago with a single computer chip. Michael Slezak explores the invention that transformed our lives.

Jeremy Fernandez looks at how the vaccines work and whether those who've had the jab can still carry the coronavirus.

Greg Jennett lifts the curtain on the SolarWinds cyberattack and explains how hackers went unnoticed for so long.