How many near-Earth objects do we need to worry about? Does The Goblin change our thinking about the hypothetical Planet 9? More on today’s podcast at #365DaysOfAstro with @CheapAstro

How many near-Earth objects do we need to worry about? Does The Goblin change our thinking about the hypothetical Planet 9? More on today’s podcast at #365DaysOfAstro with @CheapAstro
This is our near future. Unless it doesn’t happen…We are going back to the Moon… sometime. More with @CheapAstro at #365DaysOfAstro
How hot do black hole accretion disks get? How will the Parker solar probe work? more with @cheapAstro at #365DaysOfAstro
Black is the new black. How exactly does Einstein’s physics break down in a black hole. What is the temperature of a black hole? more with @CheapAstro