Family trees provide a clear example of how DNA evolves as it passes down generations. But it also reveals clues to the complicated history of human migration. Take the Indigenous peoples of the Americas. DNA evidence suggests groups of Asians migrated to Beringia, the land and maritime region between Russia and North America, around 20,000 years ago (maybe well before) and then gradually made their way to the Americas in waves.

Now, new evidence suggests that Native Americans may have traveled back to North Asia as well. In a study published Thursday in the journal Current Biology, an international group of researchers discovered an ancient Siberian hunter-gatherer society dating back thousands of years ago, and that some other ancient Siberian peoples (as well as their descendants) harbor Native American ancestry.

HBO is poised to break the stigma surrounding video game adaptations with its long-awaited series The Last of Us. The series, which comes from Chernobyl creator Craig Mazin and Last of Us game creator Neil Druckmann, is a big-budget adaptation of the post-apocalyptic game. Reviews suggest it may very well be HBO’s newest smash hit.

For fans of Naughty Dog’s games, that likely won’t come as much of a surprise. The 2013 original has long been regarded as one of the best games ever made, and discussions about adapting it circulated throughout Hollywood for years. Mazin isn’t the first high-profile Hollywood name who tried his hand; shortly after the game was released, a highly esteemed filmmaker signed on to oversee an adaptation that never saw the light of day.

Groundwater may have been common on Mars, NASA Curiosity rover data reveals. This underground plumbing may given a refuge to life on Mars, too.

In a new study, scientists studied “halos” on Mars — but the treasure inside isn’t quite what you’ve heard.