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 firstname.lastname@example.org and we’ll try to tackle it for a future show. Please include your location and a way to pronounce your name.
Would a black hole the same size as the sun give off the same amount of energy as the sun?
How do we measure time if we leave Earth?
How do heavy elements like iron end up in the inner rocky planets but not in the outer solar system or in the sun?
Why doesn’t a photon have mass?
Is an open universe infinite? What shape do we think the universe is? Did the early universe inflate at infinite speed?
How to use binoculars:
What are the processes that limit star size, and why don’t black holes have that limit?
Is the expansion of the Universe caused by decaying matter?
If the age of the Earth is derived from the decay of primordial material from when the sun condensed from a supernova, aren’t we just dating the supernova and not the sun?