When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For space fans, June has something extra to enjoy, as NASA recently released “Cosmic Dawn,” a new ...

They sound like characters from a new Marvel movie, but these “Planetary Defenders” are real-life scientists in Tucson and elsewhere who are working to save the world from a major asteroid impact.

Ella al-Shamahi is the perfect guide to our ancient ancestors. In Human, she takes us on a whistle-stop tour of our past over a span of 300,000 years, including our turbulent relations with other ...