Astronomers have spotted an object in space that blocks a surprising amount of sunlight, leading to speculation it could be a massive structure built by aliens. CBS News science contributor Michio Kaku spoke to CBSN about the enormous discovery. Source

The Director of National Intelligence is collecting data across several federal agencies to release a report on what officials call "unidentified aerial phenomena." Politico senior national correspondent Bryan Bender joins CBSN's Lana Zak to share his reporting on how UFOs became a national ...