What do we have to lose if Starlink satellites and others like them take over the night sky? Studying dark matter, observing distant galaxies, and finding signs of extraterrestrial intelligence.

• A new study says that Elon Musk's constellation of broadband satellites is leaking radiation. 
• Unintended emissions could affect the data that radio astronomers can collect accurately.
• Experts who spoke to Insider say radio astronomy helps us study dark matter and look for alien life.

SpaceX's network of low-orbit satellites emits "unintended electromagnetic radiation" that could negatively affect the study of deep space, a new paper says.