Megaconstellations of Satellites: A Threat to Space Exploration


The article discusses concerns over the increasing number of satellites being launched into space by private companies. The author, an astronomer, expresses worry about the effects of these satellites on space exploration and astronomy research.

Over the past few years, the corporate space race has intensified, with companies like SpaceX leading the charge. This has resulted in thousands of mass-produced satellites being launched into Low Earth Orbit. In the past, the high cost of launches helped to control the number of satellites in orbit. However, the decreasing cost of launches has led to a rapid increase in the number of satellites in space.

In particular, the author highlights the impact of SpaceX’s Starlink satellite megaconstellations on the night sky. These satellites reflect sunlight long after the sky has turned dark, appearing like moving stars. This has significantly impacted the author’s research, with satellite streaks becoming a common occurrence in their research images.

The author also discusses the challenges posed by these satellites to telescopes on Earth and in Low Earth Orbit. The presence of these bright and radio-loud satellites between Earth and the stars makes space exploration using Earth-based telescopes increasingly difficult. The author also warns of potential future problems, such as atmospheric pollution on launch and reentry, ground casualty risks from reentries, and the possibility of a runaway collisional cascade in orbit, known as the Kessler Syndrome.

The author argues that current regulations on launches and orbital operations are weak and are not equipped to handle the current rate of satellite launches. They call for stronger regulations on the number of satellites in orbit, which would encourage corporations to develop technologies and service models that require fewer satellites. This would help to preserve the usability of orbit for future generations. The author urges readers to support satellite regulation and to appreciate their dark skies before they change due to the increasing number of satellites.

In conclusion, the author expresses a desperate hope that the natural patterns in the sky will not be drowned out by human-made ones. They warn that without proper regulation, corporations will soon alter the night sky irreversibly. The author’s perspective highlights the need for a balance between technological advancements and preserving our natural environment, even in space.



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