Scientists discovered that salmon use "geomagnetic imprinting" to find their way home.
The ocean generates its own magnetic field, which peaks everty 12.5 hours along with the rising tides.
Sea currents create electric currents through a process called motional induction.
Measuring data from the Hubble telescope, NASA has discovered a salt-water ocean on Jupiter's largest moon beneath layers of ice.
Learn this old sailing trick and find your way back to shore!
Supernovas explode with a bright burst of radiation, giving off as much energy in a few days as our sun will give off in its entire lifetime.
Have you ever seen pictures of the sun and wondered what those dark spots were? They're sunspots!
MRI, CT, PET... What are all these scans used for and how are they different?
What is a backwards sunspot and what does it signify?
On a previous show we discussed how, every 250,000 years or so, the north and south poles switch places. Not that the places themselves move, rather, the entire magnetic field of the earth flips around, resulting in the pole we now call north being on the southern tip of the planet, and vice versa. Why does this happen? Learn more on this Moment of Science.