Hybrid power will make helicopters safer and more productive

It will buy time to land in an emergency, and permit heavier loads

China’s economy looks especially vulnerable to the spread of Omicron

Disruptions would pose a test for economic policymakers

The Omicron variant and travel bans are hurting southern Africa

South Africans feel unjustly punished for their country’s scientific rigour

Booming M&A is smashing records