Millennia-old mysteries await It's no wonder the Great Pyramid of Giza is considered one of the "Seven Wonders of the Ancient World." It's 4,000 years old and scientists are still wondering how it was
Matter Associated With Life Discovered on the Moon in the 1970s Most Likely Came From This Source, NASA Says
Back in the 1970s, scientists analyzed samples brought back from the moon and identified some of the material as including amino acids. The problem: Where did they come from? Yes, the samples themselves
As the world celebrates Back to the Future Day, it has forgotten the unknown man whose 2001 internet postings might just have saved humanity If time travel is possible, why haven’t we met any time travellers?
A reassessment of ancient rocks has led scientists to estimate that Earth's inner core started to form earlier than was previously thought, around 1.3 billion years ago. As it started to freeze, the core