Earth May Have Been Wet Since it Formed

*Meteorite study suggests Earth may have been wet since it formedA new study of meteorites suggests Earth may always have been wet. The findings reported in the journal Science add a new chapter in to ongoing debate about the origins of Earth’s water.*NASA’s planet-hunting TESS spacecraft completes its primary missionNASA’s Transiting Exoplanet Survey Satellite – TESS – has finished its primary mission, imaging about 75% of the starry sky as part of a two-year-long survey.*China launches its 189th spy satelliteChina has successfully launched a new spy satellite as part of its ongoing program to provide Beijing with continuous uninterrupted satellite coverage of key strategic areas of the globe such as the South China Sea, the Taiwan straight, the border with India, Tibet, the citizens of Hong Kong and its Belt and Road initiative interests.*The Science ReportNew questions about just how effective remdesivir really is for treating COVID-19.Mining threats to biodiversity caused by renewable energy to surpass climate change mitigation.Why pregnant women shouldn’t have coffee.Artificial intelligence now out flying fighter pilots in dogfights.Skeptics guide to chiropractorsSponsor:This episode of SpaceTime is brought to you with the support of The Great Courses Plus - Lifelong learning from the best in their field. For our special free trial offer just visit www.thegreatcoursesplus.com/space and help support the show.For more SpaceTime visit https://spacetimewithstuartgary.com (mobile friendly). For enhanced Show Notes including photos to accompany this episode, visit: http://www.bitesz.com/spacetimeshownotesGet immediate access to over 200 commercial-free, double and triple episode editions of SpaceTime plus extended interview bonus content. Subscribe via Patreon or Supercast....and share in the rewards. Details at www.patreon.com/spacetimewithstuartgary or Supercast - https://bitesznetwork.supercast.tech/RSS feed: https://rss.acast.com/spacetime Email: [email protected] receive the Astronomy Daily Newsletter free, direct to your inbox...just join our mailing list at www.bitesz.com/mailinglist or visit https://www.bitesz.com/astronomy-daily  See acast.com/privacy for privacy and opt-out information.Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support.