Three very cool science stories about Mars, Earth, and near-Earth space
It may erupt every few centuries, but don’t panic!
Animation shows X-rays from an exploded star as it expands over the decades
Also, a small galaxy may be currently ramming through the Milky Way, so there’s that too
And that’s not the only thing weird about it
This is the 1000th issue of this newsletter! Plus: lightning on Mars!
A long undersurface tunnel discovered in old NASA data
An amazing image of a dying star fried my brain
The comet may get very bright, but who knows?
Also: How many near-Earth asteroids have been visited by spacecraft?
Picking your colors carefully reveals rich science
