Instead of sending probes to faraway planets, why not hitch them to comets?
Author: C. CLAIBORNE RAY
Q&A: Even Tiny Changes in Earth’s Orbit Would Yield Global Catastrophe
A minute alteration in the planet’s trajectory around the sun would have disastrous results, a scientist…
Q&A: A Matter of Considerable Gravity
All the planets in the solar system interact gravitationally with the sun, but Jupiter’s great mass…
Q&A: What Happens to Spores in Space?
Microbes can survive in outer space, but are harmed by the ultraviolet radiation found beyond the…