May 8, 2021 | Articles
For decades, scientists and economists have been making wagers about the outcome of human population growth. Now, more than ever, their speculations need to be taken seriously.
Apr 20, 2021 | Articles
Nikolai Fyodorov’s beliefs in a cosmic religion centred on life off Earth helped inspire some of the Soviet Union’s most brilliant engineers.
Mar 28, 2021 | Articles
The cosmos has been expanding since the Big Bang, but how fast? The answer could reveal whether much we thought we knew about physics is wrong.
Feb 24, 2021 | Articles
Questions still swirl around the author’s theories about sexual selection and the evolution of minds and morals. Some passages strike modern readers as offensive, especially where Darwin speculates on issues of race and on gender roles.
Jan 29, 2021 | Articles
Conflict, negotiation, reciprocity, perhaps even selflessness: an emerging understanding of forests suggests there’s more going on within them than you might think.
Sep 6, 2020 | Articles
One of the rarest mammals in the world was almost wiped out two decades ago, sparking an elaborate and costly recovery program that has boosted numbers and offers hope for other at-risk species.