More satellites share a ride into space

The 2020s have marked the beginning of a new era in spaceflight.

The technology required for large satellite constellations has quickly become more reliable and compact. As a result, the last two years has seen an enormous increase in the number of commercial satellites launched to near-Earth space.

The satellites that make up these constellations also journey into space in a very different way than traditional missions. 2021 saw a record number of rocket rockets carrying multiple satellites into orbit at the same time. This reduces the launch cost per satellite, but often makes it more difficult for surveillance networks to spot and keep track of individual objects.

Many of these constellations are launched to provide communication services around the globe. They have great benefits, but will pose a challenge to long-term sustainability.

More on ESA's 2022 Space Environment Report.