Throughout Earth's history, ice caps have been very rare, but a model of the past 420 million years suggests an explanation ...

How did Earth transform from a hostile, acidic ocean world to one that nurtured life? Scientists at Yale and in Singapore ...

Humans evolved late in Earth history. While this timing inspired the conclusion that humanlike life is a cosmic improbability ...

Lunar: A history of the moon in myths, maps and matter tells the story of the coexistence between humanity and the celestial ...

Uncover the role of cosmic disruptions and ancient supernovae in the formation of this isotope, dating back million years ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

“Our existence is probably not an evolutionary fluke,” says Jennifer Macalady, a study co-author and microbiology professor ...

Happy Valentine's Day weekend! There's so much for you and your sweetheart to do around town, and we have your plans right ...

The death of Floyd Collins one century ago is being remembered as a catalyst for the formation of Mammoth Cave National Park, an area that's a cultural treasure and tourist attraction in southern ...

Initially developed by theoretical physicist Brandon Carter in 1983, the “hard steps” model argues that our evolutionary ...

The cool conditions which have allowed ice caps to form on Earth are rare events in the planet's history and require many ...

Extensive evidence, including global temperature and sea ice data, shows Earth's climate is changing due to human activity.