Starlink Satellites Are Sending Weird Signals That Could Seriously Mess Up Spaceflight
created: Dec. 22, 2025, 6 p.m. | updated: Dec. 30, 2025, 4:58 p.m.
Amateur astronomer Scott Tilley accidentally stumbled across downlink signals in the 2025-2110 MHz range, which is reserved for uplinking data to satellites and spacecraft.
Since the first Starlink satellites launched into space in May of 2019, they’ve been more than a small nuisance for amateur and professional astronomers around the world.
Since then, other reports have stated that Starlink satellites can cause confusion for commercial airline pilots, and that unintended radio leakage has seeped into the spectrum reserved for radio astronomy.
A report just this past moth says that one or two Starlink satellites are de-orbiting every day.
In 2019, when Starlink first launched, only 900 or so satellites filled LEO and estimates place that number in 2025 at about 10,000 and counting.
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