Scientific Mysteries: Galactic Black Holes, Deep-Sea Gigantism, Venus - ASMR for Sleep

In tonight's episode, we take a look at three topics that keep sparking debates in their respective scientific communities: The existence of supermassive black holes at the center of galaxies, that are several million times more massive than "regular" black holes born from supernovas. Did these gigantic black holes appear as such, did they become so big by absorbing other bodies for billions of years, or is it something else? Deep-Sea Gigantism, the fact that many species living deep under water become much bigger than their shallow waters relatives, despite living in an environment that offers much less food. The climate on Venus: was it always as harsh, or did this planet once looked more like Earth before its atmosphere shifted dramatically? Credits: Script and narration by the French Whisperer, visuals by the French Whisperer, under Wikipedia Commons, or under license from Panthermedia, Canstock, Shutterstock and Freepik. Sound effects and music from the YouTube Audio Library for Creators. Links to Lights Out Library: my stories retold in American English by Olimpia. YouTube:    / @lightsoutlibraryov   Spotify: https://open.spotify.com/show/2KZFL3L... Apple Podcast: https://podcasts.apple.com/us/podcast... Amazon Music: https://music.amazon.com/podcasts/17b... Links para la Biblioteca de los Sueños: mis historias contadas por Olimpia en español con acento mexicano: YouTube:    / @labibliotecadelossuenosov   Spotify: https://open.spotify.com/show/1t522al... Apple Podcast: https://podcasts.apple.com/us/podcast... Amazon Music: https://music.amazon.com/podcasts/51d... **************************************************** Free trial link to the Slumber App: https://slumber.fm/fw Slumber is a sleep and relaxation app that offers stories to fall asleep to from a variety of narrators, with sounds effects you can customize in the background, as well as meditations and ambient soundtracks. This link gives you 30 days of free trial instead of the usual 7 days. If you have trouble using the link, you need to install the app first, close it, then click on the link. I have an affiliate agreement with Slumber and this is a paid promotion in case you become a paying user after the trial. Music streaming platforms: look up on your favourite site, I am probably on it and the library of available stories is growing every week! My Facebook page:   / thefrenchwhispererasmr   Patreon: your contribution is very welcome. I use it to buy props for videos, books, and pay the bills! Patrons can also download videos in HD, or audio only, access special surveys and listen to my stories as podcasts.   / thefrenchwhisperer   Paypal account: on the front page of my channel or https://www.paypal.com/cgi-bin/webscr... **************************************************** Timestamps: 0:00 Scientific Mysteries 4:35 Supermassive Black Holes 23:22 Deep-Sea Gigantism 42:06 Venusian Climate 1:02:00 Relaxing Space Sounds, No Talking