OpinionMarch 6, 2020
Do We Really Need to Send Humans into Space?
Automated spacecraft cost far less; they’re getting more capable every year; and if they fail, nobody dies
Stories by Donald Goldsmith
Donald Goldsmith is an astronomer and science writer in Berkeley, California.
Space & PhysicsAugust 1, 2014
Could Life survive in the Universe's Far-Distant Future?
Some say its glory days are long gone, but the universe has life in it yet. Brand-new types of celestial phenomena will unfold over the coming billions and trillions of years
Space & PhysicsMarch 1, 2012
When 14 Billion Years Just Isn't Enough Time
Some say its glory days are long gone, but the universe has life in it yet. Brand-new types of celestial phenomena will unfold over the coming billions and trillions of years
Space & PhysicsMay 18, 2009
The Planetary Tease
Astronomers are on the verge of finding other Earths—but still far from knowing whether they are inhabited