Stars are dynamic entities. They emit radiation and charged particles that affect the planets that orbit them. This “space weather” is thus an important factor…View More How does stars’ radioactivity affect the habitability of nearby planets?
One of the most interesting worlds in this solar system is Titan, the largest moon of Saturn. It has a climate that in some ways…View More What do we know about Titan, Saturn’s largest moon?
The first living organism on Earth emerged approximately three and a half billion years ago. Since then, life has evolved into countless forms and colonized…View More Deflecting Existential Risk with Space Colonization
Space is marvelous but hostile. If humans intend to be spacefaring, we must identify and overcome major obstacles before colonizing our solar system. Some think…View More How to Settle the Solar System
Among our solar system’s planets, Mars seems a likely spot for future human habitation. Elon Musk is developing an interplanetary vehicle that may someday…View More The Martian Subsurface: A Shielded Environment for Life?
Elon Musk and NASA are quarrelling about whether it is possible to terraform Mars. The debate is an old one. Terraforming (sometimes called ecopoiesis…View More Terraforming: Stranger than Science Fiction