(Web Desk) - While NASA is searching for life on Mars, a CIA document claims it was found 40 years ago. The report, 'Mars ...

Explore the history, challenges, and future of global population trends, from overpopulation fears to the emerging concern of ...

But the legacy of the population spurt continues to flow through the population pyramid, first as a youth bulge, then as an increase in the middle aged, and finally into a top-heavy, aged and ageing ...

Italy is now the oldest country in Europe with a population that has been shrinking for a decade. Who will work?