The World is Watching Cities, Now More than Ever
COP21 brought cities into the spotlight. C40 is proud to help shine that light a little brighter. Because cities and mayors are acting now, and we're right beside them as they become necessary leaders in this vital cause.Watch the mayors of Bogotá, C

A star nursery 1,350 light years away toward the equatorial constellation of Orion has been captured for the first time by NASA. The Orion Nebula is a region that is similar to the region where the Solar System originated 4.5 billion years ago. Since the Orion nebula's newborn stars are being forme...

Join us as we delve into the diplomatic influence of the Aztec Empire on the global stage, forging alliances and shaping international affairs. Experience the fusion of Aztec wisdom, innovation, and environmental stewardship that make them a force to be reckoned with. Through stunning visuals, expe...

Listen to the Natural History Museum in London's human origins expert, Chris Stringer, introduce the Britain: One Million Years of the Human Story exhibition and the people who have called this land their home. The dramatic story of ancient Britain, its changing landscapes and the people that lived ...

Hong Kong's MTR just got a whole lot bigger. The Shatin-Central Link is one of the important railway projects in Hong Kong, and forming two critical railway corridors-Tuen Ma Line and the East Rail Line Extension connecting the Fourth Harbour Crossing Railway. The new railways might bring convenien...

ARCTIC CIRCLE (March 10, 2016) USS Hartford (SSN 768) surfaces in the Arctic Circle near Ice Camp Sargo during Ice Exercise (ICEX) 2016. Servicemembers and civilians assigned to Arctic Submarine Lab clear ice from the hatches to allow for surface access. ICEX is a five-week exercise designed to rese...

Boston Dynamics has introduced a new electric version of its Atlas robot, replacing the older hydraulic model with a quieter, more fluid motion system. This revamped Atlas features a more streamlined and approachable design, mirroring advances seen in robots like Agility’s Digit and Apptronik’s Apol

Up until the 1970s, color photography was extremely rare, and so when we think about history prior to that time, we often envision it in black and white. Today’s technology now enables us to “colorize” historical photos, giving us our only chance at seeing what the world really looked like back then

Kenworthy has spoken forthrightly about his own experience as a target for bullying. As one of the first openly gay athletes to compete in the Winter Olympics, cyberbullies made him the brunt of provocation ranging from homophobic slurs to death threats.

Alonzo might seem like an unlikely ally, b...

Join NASA Psyche Mission Co-Investigator Dr. Tim McCoy as he takes us on a journey from his first geology class to his current role as Curator-in-Charge of the US National Meteorite Collection at the Smithsonian National Museum of Natural History and his role on the Psyche Mission Science Team. Alon