Venice has battled rising water levels since the fifth century. But today, the water seems to be winning. Several factors, both natural and man-made, cause Venice to flood about 100 times a year — usually from October until late winter — a phenomenon called the acqua alta.

The Crew Dragon capsule successfully docked with the International Space Station 27 hours after launching into orbit from NASA's Kennedy Space Center on Florida's Space Coast. A new generation of space flight starts now with the arrival of @SpaceX’s Crew Dragon to the @Space_Station. Congratulation

The U.S. Department of Energy announced Tuesday a monumental milestone in nuclear fusion research: a "net energy gain" was achieved for the first time in history by scientists from the Lawrence Livermore National Laboratory in California. Energy Secretary Jennifer Granholm called it "one of the most...

In every female kobudai... is a male in waiting. Animals in the genus Semicossyphus belong to the wrasse family, or the Labridae. Other members of the family and some fish in other families can also change their gender. They develop the reproductive organs, external features, and behavior of the op...

Color Scope is a series that explores our perception of color, it's use across cultures and other curiosities. Each month we examine a new color. Written and narrated by Dr. James Fox. Blue eyes are in fact pale brown. As light enters a 'blue' eye, it is scattered to create a blue hue, there is no a

The Artemis missions will build a community on the Moon, driving a new lunar economy and inspiring a new generation. Narrator Drew Barrymore and NASA team members explain why returning to the Moon is the natural next step in human exploration, and how the lessons learned from Artemis will pave the w

Over the next four years, Saudi Arabia is set to spend a whopping $500 billion dollars to build a futuristic city, 17 times bigger than London and 33 times bigger than New York City. The goal is to build an innovation hub and tourist destination to lead the world in smart city technology and clean e

Since the beginning of the epidemic, more than 70 million people have been infected with the HIV virus and about 35 million people have died of HIV. Globally, 36.7 million [30.8–42.9 million] people were living with HIV at the end of 2016. An estimated 0.8% [0.7-0.9%] of adults aged 15–49 years worl

US President Barack Obama has unveiled what he called "the biggest, most important step we have ever taken" in tackling climate change. The aim of the revised Clean Power Plan is to cut greenhouse gas emissions from US power stations by nearly a third within 15 years. The measures will place signifi...

The World is Watching Cities, Now More than Ever. The US withdrawal from the Paris Climate Accord brought cities into the spotlight. Because cities and mayors are acting now, and we must be right beside them as they become necessary leaders in this vital cause. As the world moves forward from Paris,...