Space & Physics
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
Space & Physics
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 & Physics
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 & Physics
The Planetary Tease
Astronomers are on the verge of finding other Earths—but still far from knowing whether they are inhabited
