Led by corporations such as Elon Musk’s Starlink, the current 8,100 telecom satellites in orbit are about to proliferate at an estimated rate of 10,000 new satellites a year. By 2040, some 60,000 ...

Scientific research determines a huge pollution footprint from the launch of more commercial communication satellites into low-Earth orbit, but scientists are asking if the United States is prepared ...

Over the last decade, humanity's emissions of carbon dioxide (CO₂) have stabilized after a period of huge growth. Average ...

As more satellites return to Earth, researchers plan to repeat the chase with Salsa's sister satellites—Rumba, Tango, and Samba—expected to re-enter by 2026. Despite daytime limitations affecting some ...

A dramatic aircraft chase of a falling spacecraft has provided new insights into the fiery processes that accompany the ...

Carbon dioxide in the atmosphere hit “next-level” highs, scientists say. Earth’s ecosystems breaking down under extreme ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban ...

Mercury is released by environmental and human-driven processes. Some forms, specifically methylmercury, are toxic to humans.