Is light made of waves or particles? Is matter made of waves or particles? What does it mean for matter to “wave”, anyway?

Is light made of waves or particles? Is matter made of waves or particles? What does it mean for matter to “wave”, anyway?
What came before the big bang? How do we know the shape of the universe? We’re gonna need a bigger telescope!
The first stars were weird. What’s the connection between the first stars and giant black holes? Was every galaxy once a quasar?
What’s so bad about Venus, besides everything? How did it get so bad? How about Earth? @PaulMattSutter will answer the questions at #365DaysOfAstro
It turns out that the universe is kind of big. If the universe is important are we immortal? Did life happen on Venus and Mars?
How is Mars getting all its methane?
Why are there no green stars? How do we know what the big bang made?
A very special edition devoted exclusively to the new results from the Event Horizon Telescope! more with @PaulMattSutter at #365DaysOfAstro
What are galaxy clusters made of, besides galaxies? How can we use them to understand dark matter? And how can we make pretend ones on a computer?