An international team of astronomers reported in a study Wednesday that the second generation model of Starlink satellites is hampering radio astronomy, which is essential for the study of the non-visible universe, like black holes, for example. The satellites, which are part of SpaceX’s internet constellation, were found to have interference 32 times stronger than the first generation.

The number of satellites in orbit around Earth is rapidly increasing, with some 100,000 expected to be in place by 2030. And as their numbers grow, so does the difficulty of observing the universe from Earth. In some cases, satellites, such as those of Texas company AST Spacemobile, are so big and bright that they appear more luminous all but the brightest objects in the night sky.