The sun is currently ramping up to hit the peak of its 11-year activity cycle. In the past few days, powerful solar eruptions have sent a stream of particles towards Earth which are set to produce spectacular auroras in both hemispheres. But these kinds of geomagnetic storms can also have less appealing consequences. Madeleine Finlay speaks to Dr Lisa Upton, ... Show More
Oct 22
Elizabeth Holmes is back in the spotlight: why can’t we look away?
You Can See Everything, a documentary about the disgraced health tech company founder Elizabeth Holmes, has enjoyed a record-breaking opening in the US. It is a testament to how fascinated we remain by the convicted fraudster, but what is behind the enduring appeal? US technology ... Show More
17m 25s
May 2022
When Our Star Erupts - The 1859 Solar Storm And More
In 1859, astronomer Richard Carrington was studying the Sun when he witnessed the most intense geomagnetic storm recorded in history. The storm, triggered by a giant solar flare, sent brilliant auroral displays across the globe causing electrical sparking and fires in telegraph s ... Show More
12m 11s
Sep 2024
Small Steps, Giant Leaps: Episode 138: The Sun, Star of Our Cosmic Show
The Sun is the ultimate source of life in our solar system, a radiant powerhouse that bathes Earth in the energy necessary for everything from photosynthesis to weather patterns. Its warmth and light sustain us. However, the Sun’s influence isn't always benign. Its solar wind—a s ... Show More
21m 34s
Sep 2024
Chasing auroras with the Aurora Guy
<p>We are near solar maximum, a time in the solar cycle when our Sun is most active. That means more sun spots, coronal mass ejections, and auroras on worlds across our solar system. This week, Vince Ledvina, also known as the Aurora Guy, joins Planetary Radio to discuss the scie ... Show More
59m 8s