Leisure travel has recovered more quickly from the pandemic slump, which is why the ultra-low-cost carriers have grown the fastest.

Al dat reizen lijkt niet zonder gevolgen te zijn: in het rioolwater van de luchthaven wordt inmiddels  corona aangetroffen. Importeren we het coronavirus per vliegtuig?

The spread of the novel coronavirus has caused passenger demand to collapse, forcing airlines to park, rather than fly, their planes. Alice offers conditions ideal to do just that. The local airport has a runway long enough to land commercial airplanes and the climate is dry, which means aircraft parts corrode far slower than in the sweltering heat and humidity of South East Asia.

Major airlines have asked for a joint coronavirus testing programme, so that travel may resume between the US and Europe.

Sphere packing might seem like a topic only a mathematician could love. Who else could get excited about finding the most efficient way to arrange circles in the plane, or spheres in space?