This week, NASA said scientists took the biggest step yet toward discovering whether there was ever life on Mars when a rock sample collected by the Mars rover Perseverance contained potential biosignatures, which could suggest ancient signs of life. Douglas Jerolmack, a professor of Earth and environmental science at the University of Pennsylvania, discusses the significance of the discovery.
X's AI chatbot Grok, the AI-search engine Perplexity and Google's AI summaries all provided false information in the aftermath of Charlie Kirk's assassination.
Women who experienced stalking or obtained restraining orders have a higher risk of heart disease, a Harvard study released last month has found. The study analyzed data for more than 66,000 nurses, ages 36 to 56, who were surveyed about their own health for 20 years. Anna Schecter has details.
