A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

INDIANAPOLIS — The Indianapolis Zoo is asking for help in naming one of its newest residents. The zoo announced the arrival of the new orangutan on Feb. 20. "IT'S A BOY! Orangutan mom Sirih gave birth ...

Even if no life is found on other planets, smart survey design and careful statistics can still reveal how rare, or common, ...