Seeking A Scientist

Our memories are a big part of what makes us human. But why do some moments tend to stick in our brain for years, while others fade away? Neuroscientists Kausik Si and Elizabeth Kensinger explain the different types of memories and share tips for how we can remember better.

Humans spend one-third of their life sleeping, yet the purpose and function behind this regular state of unconsciousness remains a biological mystery. Sleep researcher Giorgio Gilestro is trying to understand some basic questions about it: like what sleep exactly is, and why it’s even necessary.

Human biology thankfully allows us to adapt to major changes in temperature, but only so quickly. Professor Cara Ocobock is working with reindeer herders in subarctic Finland to find out how the human body evolved to withstand the extreme cold over time. What can we learn from communities that have a long history of living and working in the frigid weather?

We’ve dug into a lot of fascinating topics this past year on Seeking a Scientist, but they’re all so complicated! That means there are a lot of lingering questions that we haven’t had a chance to tackle yet. As we close out 2024, we’re celebrating our favorite science stories of the year and answering the weirdest, wackiest, and most surprising science questions you all submitted — including space trash, immortal jellyfish, and why cats like to sit on puzzles.

Gravity dominates every moment of our experience here on Earth. We may take it for granted, but NASA astronaut Kate Rubins assuredly does not. She knows firsthand the fun and challenges of living in microgravity. During her time in space, Rubins conducted important experiments so that someday humans can handle even longer missions — like heading to Mars.