Universe Today Podcast

There are few places in the Solar System which are as fascinating as Saturn’s moon Titan. It’s a world with a thicker atmosphere than Earth. Where it’s so cold that it rains ammonia, forming lakes, rivers and seas. Where water ice forms mountains. Like Europa and Encleadus, Titan could have an interior ocean of liquid water too, a place where there might be life.Titan’s got layers, and fortunately, there’s an awesome new mission in the works to explore it: the Titan Dragonfly mission.Links to episodes I mention:Drilling under the ice on Europa - https://www.youtube.com/watch?v=qxU1VSSka4MEveryday Astronaut talks about Titan Dragonfly - https://www.youtube.com/watch?v=JkS2dP7eiEUMissions to Titan - https://www.youtube.com/watch?v=rzg78ySwIn4Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - http://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comReferences:https://solarsystem.nasa.gov/moons/saturn-moons/titan/exploration/?page=0&per_page=10&order=launch_date+desc%2Ctitle+asc&search=&tags=Saturn&category=33#dutch-astronomer-christiaan-huygens-discovers-titanhttps://solarsystem.nasa.gov/missions/cassini/mission/spacecraft/huygens-probe/https://www.nasa.gov/content/goddard/nasa-usgs-landsat-8-satellite-pinpoints-coldest-spots-on-earthhttps://nai.nasa.gov/teams/can-8/jpl-titan/https://www.nasa.gov/press-release/nasas-dragonfly-will-fly-around-titan-looking-for-origins-signs-of-lifeSupport Universe Today Podcast

In this week's questions show, I explain how long it'll take for space junk to burn up in the Earth's atmosphere, would it be possible to put advertising in space, and why panspermia is appealing as a hypothesis. 01:04 When will the space junk return to Earth?03:14 Why don't we clean up the junk?06:50 Can we advertise in the night sky?08:36 Why is pansperimia appealing as a hypothesis?10:53 Crewed space station dedicated to astronomy?13:25 Best way to reduce light pollution?16:08 What factors are important for life?18:41 Can a star and black hole orbit each other?20:41 How does time dilation work?24:46 What will happen if Starship works?28:49 How do galaxies collide if everything is expanding?30:10 Why are Saturn's rings fading away?Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.Our Book is out!https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterWeekly Space Hangout:https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/Astronomy Cast:https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSgSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - https://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comSupport Universe Today Podcast

As NASA prepares to return to the Moon by 2024 as part of its Artemis program, the agency is focusing its efforts on exploring the Moon’s polar regions. These are areas of the Moon which seem to have a lot of water mixed in with the regolith.Some of these craters are permanently in shadow, and might still have large quantities of water, that’s accessible to human and robotic explorers. This is a critical resource, and the Moon might be just the place to help humanity as it pushes out to explore the rest of the Solar System.But it might also be an illusion. We really won’t know until we look up close.Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - http://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comReferences:https://www.nasa.gov/feature/50-years-ago-lunar-landing-sites-selectedhttps://curator.jsc.nasa.gov/lunar/https://space.stackexchange.com/questions/1336/what-thickness-depth-of-water-would-be-required-to-provide-radiation-shielding-ihttps://svs.gsfc.nasa.gov/3480https://www.nasa.gov/feature/goddard/2019/lro-sheds-light-on-lunar-water-movementhttps://www.nasa.gov/ames/LCROSShttps://www.nasa.gov/feature/goddard/2019/inside-dark-polar-moon-craters-water-not-as-invincible-as-expected-scientists-arguehttps://www.nasa.gov/feature/goddard/2019/chang-e-landers-a-closer-lookhttps://www.isro.gov.in/gslv-mk-iii-m1-chandrayaan-2-mission/launch-kit-glancehttp://www.planetary.org/blogs/emily-lakdawalla/2017/1207-koreas-first-lunar-mission.htmlhttps://www.nasa.gov/press-release/nasa-selects-12-new-lunar-science-technology-investigationshttps://www.astrobotic.com/2019/7/1/astrobotic-awarded-5-6-million-nasa-contract-to-deliver-autonomous-moon-roverhttp://www.planetary.org/explore/projects/planetvac/https://www.eurekalert.org/pub_releases/2019-07/uom-nsu071119.phphttps://today.ttu.edu/posts/2019/07/Stories/NASA-picks-Nagihara-instrument-moon-landingSupport Universe Today Podcast

Where you can travel in space depends on how much propellant you’ve got on board your rocket and how efficiently you can use it. But there’s a source of free propellant right here in the Solar System - the Sun - which is streaming out photons in all directions. You just need to catch them.And right now, the Planetary Society’s new LightSail 2 spacecraft is testing out just how well it’ll work.Light Sail 2 Photos:http://www.planetary.org/blogs/jason-davis/lightsail-2-team-continues-tweaks-tests.htmlEpisode on Breakthrough Starshothttps://www.youtube.com/watch?v=3FWcEtXgK2g&list=PLbJ42wpShvml6Eg22WjWAR-6QUufHFh2v&index=146Episode on Project Dragonflyhttps://www.youtube.com/watch?v=598UtgxFd1E&list=PLbJ42wpShvml6Eg22WjWAR-6QUufHFh2v&index=23Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - http://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comReferences:https://www.quora.com/What-is-the-maximum-speed-a-chemical-rocket-can-achievehttp://www.planetary.org/blogs/jason-davis/lightsail-2-has-launched.htmlhttp://www.planetary.org/blogs/jason-davis/lightsail-2-team-continues-tweaks-tests.htmlhttps://arc.aiaa.org/doi/abs/10.2514/6.2014-4435https://www.nasa.gov/content/nea-scouthttps://www.hou.usra.edu/meetings/lpsc2018/pdf/1406.pdfhttp://www.planetary.org/blogs/guest-blogs/2017/20170925-solar-sail-dsg.htmlSupport Universe Today Podcast

In this week's QA, I tackle constant acceleration. Do we have anything that can accelerate at 1G for long periods of time? Why are there different sized stars? And do the heavier elements come from supernovae or colliding neutron stars?Check out Sophia on Twitter at:https://twitter.com/astropartigirlhttps://astropartigirl.com/Traveling for billions of light years in a human lifetimehttps://youtu.be/4tjQ8o8j-O800:00 Continuous thrust at 1G?02:25 How can bigger stars form?03:56 Heavy elements from supernovae?07:00 OWL versus E-ELT09:34 Time dilation from living on Mars12:55 Do Uranus' moons rotate around its equator?14:38 Attach a telescope to ISS?18:23 Terrified about the Sun21:42 Do neutron stars turn into black holes23:06 Why do astronomers call elements metal?25:40 Can we find dark matter everywhere?Our Book is out!https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterWeekly Space Hangout:https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/Astronomy Cast:https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSgSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - https://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comSupport Universe Today Podcast

On October 19th, 2017 astronomers detected the first interstellar asteroid (or maybe comet) passing through the Solar System: Oumuamua. It had a brief encounter with the inner Solar System and then hurtled back out into interstellar space. Once astronomers noticed it, they directed the world’s telescopes on the object, but it was too far away to reveal anything more than a faint dot. Until now, we’ve only been able to study objects in our own Solar System. We have no idea what the rest of the Milky Way is like.But we were too late to catch it, no spacecraft was ready to make a quick intercept.Well, scientists aren’t going to make that mistake again. The European Space Agency announced their plans to build a comet interceptor. A spacecraft that will lurk out at the Earth-Sun L2 Lagrange point, waiting for a long-period comet or interstellar object to pounce on, and give us the first close up view ever.Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - http://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comReferences:http://www.cometinterceptor.space/https://www.esa.int/Our_Activities/Space_Science/Giotto_overviewhttp://sci.esa.int/rosetta/2279-summary/http://www.astro.uwo.ca/~wiegert/phd/Wiegert_phd.pdfhttps://www.sciencealert.com/watch-the-sun-absolutely-destroy-the-fastest-comet-in-the-solar-systemhttp://sci.esa.int/cosmic-vision/61416-esa-s-new-mission-to-intercept-a-comet/http://www.cometinterceptor.space/mission.htmlhttp://www.cometinterceptor.space/uploads/1/2/3/7/123778284/comet_interceptor_executive_summary.pdfhttps://i4is.org/what-we-do/technical/project-lyra/Support Universe Today Podcast

People are always worried that alien civilizations will detect the transmissions from our old radio shows and television broadcasts, and send in the invasion fleet. But the reality is that life itself has been broadcasting the existence of life on Earth for 500 million years. Blame it on the plants.In addition to filling the atmosphere with oxygen, plants give off a very specific wavelength visible in infrared radiation. It’s the kind of signal that other civilizations could search for as they’re scanning the galaxy.It’s what we’ll be looking for too. But don’t just blame the plants. Other forms of life have been giving off signals too, signals we can search for as we discover new exoplanets and wonder if they have life there.Information on ESA's ARIEL missionhttps://www.youtube.com/watch?v=uCTGIxmM-e4Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - http://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comReferences:https://www.nature.com/articles/365715a0.pdfhttps://www.sciencemag.org/news/2018/03/asteroid-bound-spacecraft-finds-signs-life-earthhttps://arxiv.org/ftp/arxiv/papers/1907/1907.05245.pdfhttps://news.cornell.edu/stories/2019/07/exoplanet-evolution-astronomers-expand-cosmic-cheat-sheethttps://www.cfa.harvard.edu/~kchance/EPS238-2014/refdata/Seager-red-edge-2005.pdfhttps://www.eso.org/public/news/eso1905/https://arielmission.space/https://www.astrobio.net/news-exclusive/earthshine/Support Universe Today Podcast

In this week's QA, I answer why space telescopes aren't a waste of taxpayer resources, if ground-based space telescopes will become obsolete, and whether it makes sense to crash phobos into Mars.00:18 Waste of taxpayer money?02:14 Will ground-based telescopes become obsolete?03:50 Crash Phobos into Mars04:56 Should NASA collaborate with China?05:45 Entanglement to communicate faster than light?08:09 Crop circles08:36 Problem with wearing a weight suit in zero gravity09:55 Methane rocket emissions10:57 Why does Titan have an atmosphere?11:51 Harvest energy from neutrinos Our Book is out!https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterWeekly Space Hangout:https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/Astronomy Cast:https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSgSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - https://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comSupport Universe Today Podcast

This past weekend Skylias moderated a debated between John Michael Godier and Fraser Cain over their Fermi paradox theories. If there are aliens where are they? The Fermi paradox theory asks where are the alien civilizations in the galaxy? And in the universe. If they exist. Where are the extraterrestrials?Website:https://www.eventhorizonshow.com/Support Universe Today Podcast

In this week's questions show, I explain how astronomers know what the Milky Way looks like, what would happen in a catastrophic impact on the International Space Station, and who is the team who works with me on Universe Today?Our Book is out!https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/Audio Podcast version:ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2RSS: https://www.universetoday.com/audioWhat Fraser's Watching Playlist:https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1GWeekly email newsletter:https://www.universetoday.com/newsletterWeekly Space Hangout:https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/Astronomy Cast:https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSgSupport us at: http://www.patreon.com/universetodayMore stories at: http://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: @universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - https://instagram.com/universetodayTeam: Fraser Cain - @fcain / frasercain@gmail.comKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - weber.chad@gmail.comSupport Universe Today Podcast