Asteroids and comets are the leftovers from the planets’ formation. They’re like the potato peels that end up on the floor instead of in the mashed potatoes. So, what have those leftovers been up to the past few billion years? … More Asteroids, comets, and dinosaur-killing impacts
This is chapter 6 in the Solar System’s story. This is an action-packed, epic chapter in which a lot of pieces of the puzzle are put together in different ways. (It’s my favorite part.) … More Formation of the rocky planets: choose your own adventure!
This blog series will discuss what we know (and don’t know) about the formation and evolution of our Solar System. … More The Solar System’s story
The Sun will puff up to gargantuan size
As big as Earth’s orbit. And fill up our skies
The red giant Sun will eat Venus alive
But Mercury’s first. It will not survive. … More Reading Earth’s Destiny in the “Blood Spatter” Around Other Stars