SpacePlanned moon landings could pelt orbiting spacecraft with dusty debris The large landing vehicles planned for NASA’s upcoming moon missions could throw up large amounts of dust from the lunar surface, posing a possible danger to orbiters News
SpaceQuestions I dread: How did the universe begin, and what is space-time? As a theoretical cosmologist, you would think I'd welcome the chance to answer these questions - but it isn't clear this is an inquiry that physics can answer, says Chanda Prescod-Weinstein Comment