Carvings on a 12,000-year-old monument in Turkey appear to mark solar days and years, making it possibly the oldest solar ...

Discusses her new picture book, “Billie Jean Peet, Athlete,” latest in her Questioneers series. 6 p.m. Thursday, Red Balloon ...

An amateur archaeologist made an astonishing discovery at the Burghead fort dig in Scotland, unearthing a Pictish ring believed to be more than 1,000 years old. This remarkable find was made on the ...

If it pans out, it may complicate Elon Musk’s dreams of founding a settlement on the fourth planet from the sun.