The Download: solar geoengineering’s future, and OpenAI is being sued

A startup called Stardust Solutions raised $60 million for solar geoengineering, a controversial method to combat global warming by reflecting sunlight back into space. OpenAI is facing a lawsuit for wrongful death after a woman was killed by her son following conversations with ChatGPT. ICE is using smartwatches to track pregnant immigrants, sparking concerns about privacy and detainment conditions. Meta's AI team is causing internal tensions, while Google DeepMind is establishing a materials science lab in the UK. The tech industry is also exploring building orbital data centers and investigating the causes of Parkinson's disease.