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In this week's questions show, I talk about why some missions go into orbit, and other missions make a direct landing on Mars. Is it a good idea for the SpaceX Falcon Heavy to launch components for the Lunar Gateway? And how can we know if the Universe is finite or infinite? 00:00 Start 00:30 Why go into orbit when NASA goes straight for landing? 0…
 
00:00 Start 00:22 Easier to find life in the Solar System or Milky Way? 05:13 Could an exosuit simulate gravity? 06:36 Could you use water as a propulsion system? 08:28 Could you have space-based interferometry? 13:02 Are the moons of Jupiter in severe radiation? 14:19 Is anyone working on spinning habitats? 18:05 What about Amazon's satellite cons…
 
This week I interview Chris Prophet, the author of "SpaceX from the Ground Up". His book, now in its 6th edition covers the story of SpaceX, from its initial concept to the latest Starship tests. https://www.amazon.com/SpaceX-Ground-Up-Chris-Prophet-ebook/dp/B01CUUUZZ2 🚀 OUR WEBSITE: ════════════════════════════════════ https://www.universetoday.co…
 
In this week's Q&A show, I answer questions about Starship might be able to provide artificial gravity, whether I'd prefer to have LUVOIR or the Overwhelmingly Large Telescope, and if nuclear-powered rockets will work in space. You can join me live every Monday on my YouTube channel at 5pm Pacific Time to ask your questions live. 00:00 Start 00:18 …
 
In this week's interview, I talk to David Brown about his new book: The Mission. It's all about the campaign to design and build the Europa Clipper mission and everything that happened behind-the-scenes. David is a science journalist and writer with with work in the Atlantic, New York Times, Scientific American and more. https://www.dwb.io/ https:/…
 
In this week's QA, I talk about what's driving the expansion of the Universe, how big the observable Universe is to the actual Universe, and what will happen to dogs in gravity. 00:00 Start 00:26 What's driving the expansion of the Universe? 04:01 How big is the observable Universe compared to the actual Universe? 07:25 Do people watch videos or li…
 
10 billion years ago, galaxies of the Universe were ablaze with the light of newly forming stars. This epic phase of history is known as “Cosmic Noon” - the height of all star creation. Galaxies like our Milky Way aren’t creating stars at nearly the rates they were in the ancient past. However, there is a time when galaxies in the present can explo…
 
In this week's interview, I talk with Devin Carroll, a robotics Ph.D. student at the modular robotics lab at the University of Pennsylvania. Devin is working on robots that can build their own structure out of ice. https://www.modlabupenn.org/people/devin-carroll/ https://www.youtube.com/watch?v=kjfDRQWv0x0 🚀 OUR WEBSITE: ══════════════════════════…
 
In this week's live Q&A, I talk about the new Space Launch System hot-fire test, how Breakthrough Starshot spacecraft might be able to communicate with home, and what messages would we send to aliens that we might never be able to reach physically. 00:00 Start 02:11 How would Starship chipsats communicate with Earth? 05:00 How far can we ever explo…
 
Welcome to the new style Q&As, which we're now recording every Monday live on my YouTube channel at 5pm Pacific Time. This week we got a lot of great questions about the Proxima Centauri signal, the Fermi Paradox, and Breakthrough Starshot. 00:00:00 Start 00:00:14 Is Starlink portable? 00:01:07 Any thoughts on the Wow signal? 00:03:58 What are magn…
 
In this week's interview, I talk with Chris Carr, one of the co-hosts in the Weekly Space Hangout. Chris is a grad student at Columbia University, specializing in the cosmos inside and outside the Milky Way. http://www.astro.columbia.edu/profile?uid=chris 🚀 OUR WEBSITE: ════════════════════════════════════ https://www.universetoday.com/ 🚀 PODCAST L…
 
In this week's last QA of 2020, I go long answering questions about space and astronomy. I talk about the news of a radio signal received from Proxima Centauri, an update on my attempts to learn Mandarin Chinese, and a long diatribe about megaconstellations and their impact on astronomy. 00:00:00 Start 00:02:51 How do we know the rotation rate of g…
 
00:00:00 Start 00:04:45 Can we know how much of the Moon is Earth and what is Theia? 00:06:41 Where did the Earth's water come from? 00:09:24 Would alien AI be friendly? 00:12:01 How far could we detect alien civilizations? 00:15:58 Why isn't metallic hydrogen made with nuclear weapons? 00:19:37 Is there water on Titan? 00:22:35 Is the outer Solar …
 
My guest this week is the science journalist Elizabeth Howell. Dr. Howell is one of the most prolific space journalists working in the field, contributing thousands of articles across almost every space news site (including Universe Today). She has also written and collaborated on several books. Her latest book is called "Canadarm and Collaboration…
 
In this week's live questions show, I explain why planets can remain habitable long after their stars have died, what we're going to do now that Arecibo has collapsed, how we'll explore the oceans underneath Europa. I also answer the question of whether or not I'm ready to learn about the secret Galactic Federation. Our live shows are provided ad-f…
 
My guest this week is Alex Ignatiev, from Lunar Resources. Alex and his team are working on a rover that could build solar panels, wiring and even radio antennae out of lunar regolith. This could support future bases or even radio telescopes. You can learn more about Lunar Resources here: http://lunarresources.space/ Our Book is out! https://www.am…
 
In this week's live questions show, I explain how amateurs can contribute to space and astronomy research, will I sign up for Starlink, and what would happen if the supermassive black hole at the heart of the Milky Way turned into a quasar? 00:00:00 Start 00:03:13 How can amateurs can contribute to science? 00:05:50 What if Sgr* turned into a quasa…
 
Wallace Arthur is an evolutionary biologist and emeritus professor of Zoology at the National University of Ireland, Galway. His newest book is called the Biological Universe, and features the search for life in the Milky Way and Beyond. https://www.cambridge.org/core/books/biological-universe/4599E17C7FAAECE4A87038C62039C755 Our Book is out! https…
 
In this week's Open Space, we had a series of questions about the International Space Station. How long will it remain in orbit, and what role will it continue to play with other space stations under construction? We also talked about how much longer the Earth will remain habitable, and if it could be possible to replace Arecibo. 00:00:00 Start 00:…
 
00:00:00 Start 00:01:31 How much oxygen is too difficult? 00:03:46 Do the Falcon 9 boosters really land, or does the camera always cut out? 00:04:55 Could SpaceX have succeeded without NASA? 00:07:53 Will Gateway get delayed too? 00:11:20 Too drunk to control a telescope? 00:12:38 Is the Universe heating up? 00:16:00 Why rush to Mars? 00:19:50 Why …
 
Dr. Peter Woit is a theoretical physicist and senior lecturer in the math department at Columbia University. He's a critic of string theory, wrote a book called "Not Even Wrong" and maintains a blog of the same name. http://www.math.columbia.edu/~woit/wordpress/ Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/16241…
 
In this week's live QA, I talk about Elon Musk's hope of establishing a free Mars, the future of gravitational wave detectors, and what do I think about trying to live in other places in the Solar System? 00:00:00 Start 00:03:00 Thoughts on Bridenstine leaving NASA? 00:08:10 Should we declare a Free Mars? 00:11:43 How sensitive will gravitational w…
 
In this week's questions show, I talk about the Dark Forest theory in the Three-Body Problem series of books. Is it a compelling answer to the Fermi Paradox? How much of a risk is dust to interstellar travel? Is black hole evaporation negated by black holes absorbing additional material and energy? 00:00 Start 00:46 Is the Dark Forest a reasonable …
 
https://www.darkskytraveller.com.au/fredwatson Space Nuts Podcast https://podcasts.apple.com/ca/podcast/space-nuts-astronomy-space-and-science-news/id1080090608 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-spac…
 
00:00:00 Start 00:04:10 Searching for exomoons 00:07:35 Why I hate embargoes 00:11:29 Discovery of water on the Moon 00:17:00 Could Spitzer target the Moon? 00:17:30 Would Jupiter's magnetosphere protect you? 00:20:56 Any space telescopes for Starship? 00:26:27 Cost of a replacement James Webb? 00:27:45 Do you need gravitational assists to go to th…
 
00:00 Start 05:54 Have we learned any more about Venus? 08:31 Elon Musk interview with the Mars Society 11:15 How small would Earth be as a black hole? 11:31 Could space be infinite at the Big Bang? 13:57 Will we mine the Moon for Helium 3? 17:08 How does inflation improve the Big Bang? 23:22 Why didn't the Universe collapse again? 27:03 OSIRIS-REx…
 
This week I'll be talking Dr. Seth Shostak from the SETI Institute about his work searching the Universe for evidence of extraterrestrials. 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?m…
 
In this week's live questions show, I answer questions about drilling for microbes on Mars, missions that could survive the surface of Venus, and if anyone else is dissatisfied with the Big Bang. 00:00 Start 04:18 Any updates on the Chinese mission to Mars? 05:41 How many exoplanets are confirmed? 07:18 Can any rovers drill for microbes? 10:31 Any …
 
Black holes are already mind-bending enough. Matter and energy compressed into a region so dense that the escape velocity exceeds the speed of light. Places where space and time are tangled up so much that even if you could go faster than light speed, you’d still end up at the singularity. Astronomers know of two kinds of black holes in the Univers…
 
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=2 RSS: https://www.universetoday.com/audio What Fraser's Watching Playlist: https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCE…
 
00:00 Start 00:16 Did we infect Venus with life? 02:27 Can we terraform Venus with bacteria? 04:03 This is boring. 06:21 It's probably not life. 09:07 Phosphine is on Jupiter too. 10:50 Are there spaceflight insurance companies? 12:59 Why can gas giants remain spherical? 15:21 What if the Moon was in geosynchronous orbit? 17:42 Are astronauts falli…
 
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=2 RSS: https://www.universetoday.com/audio What Fraser's Watching Playlist: https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCE…
 
Sarah Scoles is a Denver-based science writer who has supplied articles to WIRED Science and Popular Science. Her newest book is called "They Are Already Here: UFO Culture and Why We See Saucers". http://www.sarahscoles.com/ Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ Audio Podcast version: ITunes: …
 
Well, did you hear the big news? Life on Venus. Life… on... Venus. Now, where have we heard this before? Oh right, life on Mars. If you’ve been watching any of my videos or listening to Astronomy Cast, you’re cautiously optimistic. Skeptical, but hopeful. That’s the right position to take, because buckle up, the internet’s about to run with this ne…
 
In this week's questions show, I wonder about the supernova that formed the Solar System, how astronauts deal with air pressure differences, and how we're going to handle the cold temperatures on Mars. Featuring Astronaut Terry Virts https://terryvirts.com/ 00:00 Start 01:17 Where are the supernovae that created the Solar System? 03:53 Can astronau…
 
In this week's questions show, you wondered if the simulation hypothesis is a good answer to the Fermi Paradox. How to get a career in space manufacturing? Will a compass work on Mars? And more... Featuring Moiya McTier https://www.youtube.com/channel/UCAzGSsOGMAJeet8SkO8TWmA https://twitter.com/GoAstroMo https://exolore.captivate.fm/listen 00:00 S…
 
In this week's questions show, I consider what the benefits might be to humanity if we discover that we aren't alone in the Universe. How long did Mars planetary dynamo take to turn off? Could we find and repair the lunar rovers? 00:00 Start 00:12 Would extraterrestrial life have any impact on us? 03:01 When did Mars shut down? 05:16 Could the rove…
 
In this week's questions show, I explain how it's possible for stars to orbit so closely they're actually touching. What are the limits to gravitational slingshots, and how astronomers know where to point their telescopes in the Universe. 00:00 Start 00:44 Can stars touch? 02:39 What is the maximum slingshot speed? 05:32 How do astronomers know whe…
 
When the Apollo astronauts first landed on the Moon, they couldn’t go far on foot. That’s why the three final missions were equipped with Lunar Roving Vehicles, or Moon buggies, which allowed the astronauts to cover much more ground and do more science. Now that NASA is returning to the Moon by 2024 as part of its Artemis Program, it’s considering …
 
In this week's questions show I explain why it's still important to do science, even if it's difficult, can we use multiple methods to measure distance, and why the Trojan asteroids don't collect into a single object? 00:00 Start 00:40 Why should we bother trying to understand the Universe? 05:01 Can different methods be used to measure distances t…
 
When the largest stars die, it’s usually pretty obvious. Supernovae are visible from billions of light-years away. But recently astronomers watched a massive star just disappear. No explosion, nothing, it just… vanished? Of course, it could have been dust. It’s always dust. But one intriguing possibility is that the star just imploded directly into…
 
This episode is a segment that we did in the Weekly Space Hangout talking about how astronomers are using masers (water lasers) to measure the expansion rate of the Universe. You'd think that another, independent way to measure the expansion rate of the Universe would be helpful, but it's only deepened the mystery of the cosmological crisis. Subscr…
 
This week, it'll be the last Open Space with Fraser before the show goes on its summer hiatus until September. If you've got some burning space questions, no will be your chance to ask them. Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ Audio Podcast version: ITunes: https://itunes.apple.com/us/podcas…
 
In this week's questions show, I answer what would happen if a supernova exploded right beside a black hole, how do we know that it's impossible to travel faster than the speed of light, can we hitch a ride on an interstellar object, and more... 00:00 Start 00:17 What if a supernova exploded right beside a black hole? 03:09 Is interstellar travel j…
 
Earlier this year, NASA announced 4 new Discovery-class missions that they were considering. These are low-cost, rapidly-built missions that will help scientists understand some mystery in astronomy and planetary science. One of these missions is called Trident, and it’s going to be targeting the Planet Neptune. And more specifically, it’s going to…
 
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