#89 Rogue planets! It's possible that most planets in our galaxy don't orbit a star, like we do with our sun. Rogue planets float through interstellar space in the cold darkness. How do they form? And how do we find a planet at interstellar distances?
Send us Fan Mail We instinctively think of planets as rocky or gaseous bodies orbiting a star like our sun, with sunrise, sunset, heating and maybe even seasons. But what if a planet didn't orbit a light source? What if it just floated through space vaguely orbiting the centre of the galaxy, but tugged this way and that way by nearby stars and stellar systems. These are rogue planets. No sunrise, no sunset, no heat from an outside source. Just starlight and blackness as it wandered aimlessly ...
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More from Cosmic Coffee Time with Andrew Prestage
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#92 Particle physicist and author Dr. Sarah Alam Malik joins us to explore the history of astronomy and the universe. Her new book A Brief History of the Universe takes us from ancient astronomers to modern physics, and the future of the cosmos.
#91 What’s next for the Artemis program? Artemis 2 was incredible, but let’s take a look at what Artemis 3 & 4 will achieve in the next couple of years. (It’s amazing!)
#90 An Australian backyard astronomer helped NASA find 100 planets! Astronomy award winner Chris Stockdale used his home observatory in Churchill, Victoria to track distant stars and find the planets in their orbit. What a chat.
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