Search results for "black holes"

Supermassive Black Hole

Ep. 213: Supermassive Black Holes

It’s now believed that there’s a supermassive black hole lurking at the heart of every galaxy in the Universe. These monstrous black holes can contain hundreds of millions of times the mass of our own Sun, with event horizons bigger than the Solar System. They’re the source of the most energetic particles in the Universe, […]

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Artist

Questions Show: Black black holes, Unbalancing the Earth, and Space Pollution

Why are black holes black? Can a huge mass of humanity make the Earth wobble? And what’s so bad about space pollution anyway? If you’ve got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we’ll try to tackle it for a future show. Please include your location and a […]

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What if the Moon wasn't tidally locked to the Earth?

Questions: An Unlocked Moon, Energy Into Black Holes, and the Space Station’s Orbit

What would happen if the Moon wasn’t tidally locked to the Earth? What happens to all that mass and energy disappearing into a black hole? And how can we explain the space station’s crazy orbit? If you’ve got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we’ll try to […]

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Artist's impression of a black hole

Questions Show: Decelerating Black Holes, Earth-Sun Tidal Lock, and the Crushing Gravity of Dark Matter

This week we wonder if you can made a black hole by accelerating a mass, but then can you un-make it again? Will the Earth ever be tidally locked to the Sun? And can dark matter crush an unsuspecting space ship? If you’ve got a question for the Astronomy Cast team, please email it in […]

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Questions Show: Stellar Roche Limits, Seeing Black Holes, and Water on Mars

This week we find out when stars get torn apart from gravity, how we can see supermassive black holes, how liquid water could have existed on Mars in the past, and much more. If you’ve got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we’ll try to tackle it […]

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Questions Show – light speed, Andromeda galaxy, dark matter and black holes

Another week, another roundup of your questions. This week listeners asked: will reaching light speed destroy the Universe? When is Andromeda going to look really, really cool with the unaided eye? Why didn’t dark matter all turn into black holes? And there’s even more. If you’ve got a question for the Astronomy Cast team, please […]

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Ep. 18: Black Holes Big and Small

We’re finally ready to deal with the topic you’ve all been waiting for: Schwarzschild swirlers, Chandrasekhar crushers, ol’ matter manglers, sucking singularities… you might know them as black holes. Join as as we examine how black holes form, what they consume, and just how massive they can get. Download Episode 18: Black Holes Big and […]

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Photo of an extrasolar planet

Questions Show: Imaging Extrasolar Planets, Infinite Universe, Inside a Black Hole

What will we eventually be able to see on extrasolar planets? What does an infinite Universe mean? And what’s down there, inside a black hole? If you’ve got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we’ll try to tackle it for a future show. Please include your location […]

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Black Hole Formation. Image credit: NASA

Questions Show: Matter Balance, Jumping Light Speed and Black Hole Star Formation

Why was there a difference between the amount of matter and antimatter at the beginning of the Universe? Mathematics lets us travel faster than light speed, so why can’t we? And are there stars forming around black holes? If you’ve got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and […]

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Celestron telescope.

Questions Show: Telescope Suggestions, Black Hole Energy, and Universal Time

What starting telescope equipment does the Astronomy Cast team suggest? How much energy does a black hole generate? And how do we measure time outside the Earth? If you’ve got a question for the Astronomy Cast team, please email it in to info@astronomycast.com and we’ll try to tackle it for a future show. Please include […]

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