Satellite megaconstellations threaten space astronomy

Satellite Megaconstellations Threaten Space-Based Astronomy

Rapidly growing satellite constellations have sparked serious concerns within the scientific community. Reflections from these satellites are visible to astronomers, disrupting observations and compromising data quality.

Impact on Observations

The increasing number of satellites creates bright trails in telescope images, which obscure faint celestial objects. This interference jeopardizes long-exposure observations critical for studying distant stars, galaxies, and other phenomena.

Scientific Community Concerns

Researchers emphasize that the brightness and sheer number of these satellites will have a lasting negative effect on ground- and space-based astronomy. The cumulative reflections add background noise, hindering accurate measurements.

"The visible reflections from satellites are expected to severely disrupt astronomical surveys," warn experts.

Call for Mitigation

There is a growing demand for satellite operators to adopt measures reducing reflectivity and overall visibility. Collaborative efforts between astronomers and satellite companies are essential to preserve the integrity of astronomical data.


The rapid expansion of satellite megaconstellations threatens to undermine the clarity and reliability of space-based astronomical observations worldwide.

more

Nature Nature — 2025-12-04

More News