The startups still betting space mining will bring in big bucks

Just a couple of years ago, it seemed that space mining was inevitable. Analysts, tech visionaries and even renowned astrophysicist Neil deGrasse Tyson predicted that space mining was going to be big business. But fast forward to 2022, and humanity has yet to commercially mine even a single asteroid. CNBC spoke to two California startups, AstroForge and TransAstra, about how they are trying to make space mining a reality and the challenges they face.