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The biggest black hole ever seen?
What’s the difference between planets and stars? Are particles inside of spacetime? Why can’t we communicate faster than light? @PaulMattSutter will discuss this topic at #365DaysOfAstro

At the close of the nineteenth century the universe was seen as finite and static. It was composed of one galaxy the Milky Way and Andromeda was merely a nebula attached to it. Yet the work of Henrietta Leavitt and Edwin Hubble challenged this idea. This podcast looks at how the study of Andromeda in the early twentieth century transformed astronomy’s vision of the universe into one that saw it as but one of many galaxies along with the Milky Way in an infinite and growing universe.

Why is the TRAPPIST-1 system so fascinating? Is it really habitable? How are we figuring all this out? I discuss these questions and more in today’s Ask a Spaceman!

When you think of the Moon, you think of craters. Here you go, the week we drove the show into a crater. Wait… there’s got to be a better way to describe this.

Today we have story about the Phoenicids meteor shower and moon rock brought back by Apollo 14 astronauts. #365DaysOfAstro #travelersinthenight stories.