Recent reductions in per-device carbon footprints appear to be insufficient to close the sustainability gap. Sustainability is undeniably a grand challenge. As the world population and the average ...

The cool conditions which have allowed ice caps to form on Earth are rare events in the planet's history and require many ...

Firefly Aerospace 's moon-bound spacecraft has provided the closest thing to a reflecting pool in space, showing Earth as an ...

With your thinking,” Trump retorted, “you will never bring peace.” Turning to the audience, Rubio got in a last word: “Donald ...