Explainers

From the changing definition of death to near death experiences, Alex Clark embarks to answer arguably humanity’s biggest question: What happens when we die?

Billions of dollars are spent inside the virtual economies of video games. So why spend money on a virtual good? And how did they become so valuable?

How does the planet turn CO2 into stone over time? Scientists and engineers are trying to speed up this process in hopes of capturing and storing atmospheric CO2.

Glad You Asked hosts Alex Clark and Christophe Haubursin set off to discover what causes loneliness, how it affects our health, and what to do to address it.

The computer chip shortage began as a temporary disruption during the 2020 pandemic but has led to supply breakdowns across multiple industries. But how did we get here?

NOVA's Alex Clark travels to Colorado to see how cloud seeding works, and how it can make water droplets or snowflakes easier to form from clouds.

Some legendary Japanese Domestic Cars are now finally legal to bring stateside. Alex crosses the border to explain how to buy, ship, and register his JDM car to the U.S.

Today's Democratic Party in the United States boasts the support of the majority of non-white voters. But looking at its history reveals a past steeped in racist ideals.

Caitlin Saks, Arlo Pérez Esquivel, and Alex Clark investigate a chemistry problem that has been eating at Alex (or rather, at his car).