Papua New Guinea is grappling with a severe resurgence of HIV, prompting the government to declare a National HIV Crisis. New data reveals a doubling of new infections since 2010, with an estimated 30 ...

How Two Neuroscientists View Optical Illusions The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception.

Washington is among more than a dozen states that might be able to see the northern lights on June 25 and June 26.

Google announced on Tuesday that you can now access historical Street View imagery on Google Earth. Until now, you’ve only been able to access historical Street View imagery on Google Maps.

Google is building Street View into Earth, allowing you to see how a location has changed over the years from the street level.

Google rolls out Street View time travel to celebrate 20 years of Google Earth Google Earth wowed everyone 20 years ago, and it's still pretty cool.

Here's why Whoopi Goldberg isn't on 'The View' this week, plus when she'll be back at the Hot Topics table following the show's summer hiatus that begins Monday, June 30.