Synopsis
The Guide to Space is a series of space and astronomy poddcasts by Fraser Cain, publisher of Universe Today
Episodes
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Moon Ejecta Hitting Earth // China’s Satellite Rescue // Asteroid Closeup
25/04/2025Lucy’s close up images of another asteroid, why Mars has a lopsided magnetic field, Chinese engineers rescue a pair of satellites with gravitational slingshots, and new hints about where Mars’s carbon dioxide atmosphere went. In our longer Space Bites+ on Patreon, a proposed human mission to both Mars and the asteroid Ceres.
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Pessimism Regarding Humanity, Dark Stars, Source Kilonova | Q&A 315
24/04/2025Why am I so pessimistic about the progress of humanity? Which kilonova did all our heavy elements come from? What's the deal with the dark stars? And in our free Q&A+ on patreon, can a single nation realistically have a Moon outpost? Answering all these questions and more in this question show.
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Mystery of Little Red Dots, Renaming Uranus, Why Fund Science? | Q&A 314
22/04/2025Should we really be renaming Uranus and stop making fun of its name? How will astronomers deal with the floods of data when Vera Rubin comes online? Do little red dots found by Webb solve the mystery of supermassive black hole formation? And in our free Q&A+ on patreon, what are my personal space obsessions right now? Answering all these questions and more in this question show.
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How Space VFX Are Made
21/04/2025Creating realistic images for space movies is tough. Often little details like the interfaces on the screens matter a lot even though you barely notice them. How is it done? Finding out in this interview.
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[Space Bites] Cancelling Roman Telescope // Big Biosignatures Update // Spinning Universe
18/04/2025We’ve got more details about upcoming NASA cuts, the first evidence of life on an exoplanet? is the entire Universe spinning? how global warming could reduce room for satellites, and in our free Patreon edition of Space Bites+, a new way to search for life as we don’t know it.
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Origin of Oumuamua, Upside Down Venus, Space Station Made of Starships | Q&A 313
17/04/2025Did we ever find out which star Oumuamua came from? Will there be a space station made of Starships? Why is Venus rotating upside down compared to all other planets? And in our free Q&A+ version on Patreon, does life on Earth require the Moon? Answering all these questions and more in this Q&A.
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[Q&A] Protocol for an Asteroid Strike, China Overtaking NASA, Mining the Moon | Q&A 312
15/04/2025What is the international protocol for a potential large asteroid striking the Earth? Will China's space program soon surpass NASA? Can we feasibly mine the Moon for Helium-3? Also, in our free Q&A+ version on Patreon, what will be my next favorite telescope after Gaia is gone? I will answer all these questions and more in this Q&A show.
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[Interview] Getting To Mercury with NO Propellant
14/04/2025Solar sails aren't only good for getting to Mars and beyond. In fact, they can be more efficient when going towards the Sun. This new mission concept even suggests going to Mercury using a solar sail, providing the best observations of the planet we have ever had.
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[Space Bites] Nearby Supernova is Coming // Stripping Stars // Limits for Titan Life
11/04/2025We finally know exactly how long it takes Uranus to turn once; there’s a Type 1a supernova in the making, and it’s really close; how much total life could be on Titan? and a new comet could brighten in the coming weeks. And in our Space Bites+ on Patreon, how our understanding of the physical properties of galaxies could be wrong.
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[Q&A] Artificial Gravity, Trusting SpaceX, Neutron Stars VS Magnetars | Q&A 311
10/04/2025What's the current state of development of artificial gravity with spinning space stations? Do I trust SpaceX to get us to Mars? Will China be the first to get there? And in the free edition of [Q&A+] on Patreon, why won't NASA just launch upgraded versions of Voyagers? Answering all these questions and more in this Q&A show. 00:00 Start 00:32 [Gabulous] What's the state of artificial gravity research? 03:54 [Aaron Skinner] Can we prevent motion sickness in spinning space stations? 04:55 [Jasmine Flores] Do I trust SpaceX to get us to Mars? 12:08 [Boogerman] Will China be first to Mars? 13:28 [Vagge]
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[Q&A] Universe Inside a Black Hole, Consequences of JWST Failure, State of SETI
08/04/2025What consequences would Astronomy face if JWST had failed? Does SETI still do good work? Does our Universe live inside of a giant black hole? And in the free addition of [Q&A+] on Patreon, can there be an experiment that would provide proof of alien life? Answering all these questions and more in this Q&A show.
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[Space Bites] Revolutionary Mercury Mission Concept // Dust Shield for the Moon // First Crewed Polar Mission
04/04/2025Webb discovers auroras on Neptune, and measures the exact size of Asteroid 2024 YR4, the first Private Mission to carry humans on a polar orbit, a mission that could reach and explore Mercury using only a solar sail. And in our bonus story on Patreon, what would it take to build a sample return mission to Io?
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[Q&A] Dying Moon Landers, Gravitational Waves from Betelgeuse, Furthest Galaxies
03/04/2025Why don't moon landers just heat themselves to live through the lunar night? Will Betelgeuse's explosion cause a lot of gravitational waves? Is it even theoretically possible to accelerate close to the speed of light? And in our free bonus question on Patreon, what is my dream space mission? Answering all these questions and more in this Q&A show.
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[Q&A] Nearby Rogue Planets, Beaming Power from Space, Solar Sail Propulsion
01/04/2025Could there be rouge planets floating in space between us and Alpha Centauri system? Will the Chinese be beaming power from a space station to Earth? Will solar sails be used for propulsion in our lifetime? And in our free bonus question on Patreon, how Lagrange points work for different planets and moons? Answering all these questions and more in this Q&A.
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[Interview] Can We Fix Liquid Mirror Telescopes' Biggest Problem?
31/03/2025Liquid mirror telescopes exist. But there's a big problem with them. They can only look directly up. Can we fix it? Can they work beyond the Earth's surface, in orbit or on the Moon? Finding out in this interview.
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[Space Bites] Possible Solution for Hubble Tension // Weird Rock Found on Mars // Space Tornadoes
28/03/2025Long-chain hydrocarbons found on Mars, has dark energy been decreasing over time? a completely flat telescope lens, the center of the Milky Way contains a star grinder. And in our free version on Patreon, a new theory for the formation of Mercury.
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[Q&A] RoboAstronauts, Replacing Kepler, Starship HLS in Danger
27/03/2025Will astronauts be eventually replaced by robots in space? Is there a plan for a replacement for the Kepler telescope? Do Intuitive Machines failures mean that Starship HLS is kind of in danger? And in our free bonus question on Patreon, will Artemis become 100% SpaceX? All this and more in this Q&A show.
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[Interview] Titan Is Much Stranger Than You Think
26/03/2025Titan is the only known world except Earth that has liquid on its surface and a dense atmosphere. We are planning to send a nuclear helicopter called Dragonfly to explore it. What can we expect from Titan? Finding out in this interview.
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[Q&A] Colouring the Sun Green, Self-Sustaining Space Station, Fate of LUVOIR
25/03/2025Should we be colouring our star green to make it stand out for potential aliens? What would it take for a space station to be fully self-sufficient? What happened to LUVOIR which was supposed to be a bigger version of JWST? And in our free bonus question on Patreon, can you win a Nobel Prize by watching YouTube videos. All this and more in this Q&A.
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[Space Bites] AMAZING Lunar Spectacle // Alternative Mars Sample Return // Direction of a Death Star
21/03/2025Blue Ghost wraps up two busy weeks on the Moon with a sunset, good news, the death star isn’t pointing at us, and a new option for the Mars Sample Return mission. And our longer edition on Patreon, how supernovae could have caused two of Earth’s mass extinction events.

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