Starlink satellites emit bright radio waves that challenge radio astronomy

Starlink satellites are emitting radio waves that are over 10 million times brighter than natural cosmic sources, according to a new study. This unintended leakage poses a challenge for radio astronomy, making it difficult to observe faint celestial objects. The latest generation of Starlink satellites orbits lower than previous models, increasing their brightness to ground-based telescopes. Researchers used six radio telescopes in the Netherlands to measure these emissions during brief observation periods in July. SpaceX plans to launch around 40 more second-generation Starlink satellites, adding to the over 6,000 already in orbit. Researchers are also studying emissions from satellites from other companies and hope to encourage redesigns to minimize radio interference.