Discovery of a free-floating black hole hiding in plain sight

The Astronomy, Technology, and Space Science News Podcast.
SpaceTime Series 25 Episode 19
*Discovery of a free-floating black hole hiding in plain sight
Astronomers have found evidence of black holes floating undetected through the darkness of interstellar space.
*New planet detected around Proxima Centauri
A third planet has been discovered orbiting around our nearest neighbouring star Proxima Centauri.
*Extinction level asteroid impact on Mars
Scientists have found evidence of an extinction level asteroid impact event on the red planet Mars dating back almost four and a half billion years.
*Ancient giant super-mountain ranges may have helped the evolution of life
A new study claims giant mountain ranges at least as high as the Himalayas and stretching up to 8,000 kilometres across entire supercontinents would have played a crucial role in the evolution of early life on Earth.
*The Science Report
Evidence of some level of natural immunity up to 20 months after COVID-19 infection.
Ocean heatwaves predicted to increase.
Scientists say they still have no idea what the giant shark Megalodon really looked like.
Skeptic's guide to singing to ghosts
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