S04E105: Solar Cycle 26's Early Signs & Curiosity's Sulfur Surprise

Are you ready to journey through the cosmos? In the latest episode of Astronomy Daily, we delve into some of the most exciting recent developments in space and astronomy. Hosted by Anna, this episode covers a range of topics that will captivate both seasoned astronomers and curious space enthusiasts alike.

First up, we explore the early signs of the sun's next solar cycle. Scientists have detected the first rumblings of solar cycle 26 through sound waves within the sun, even though we are still halfway through the current cycle. This discovery, made by researchers at the University of Birmingham and presented at the Royal Astronomical Society's national astronomy meeting, holds promise for advancing our understanding of solar dynamics. By studying internal sound waves, astronomers have pinpointed patterns that serve as early indicators of a new solar cycle. This research is crucial for predicting solar activity, which impacts everything from satellite operations to power grids on Earth.

Next, we turn our attention to Mars, where NASA's Curiosity rover has made a groundbreaking discovery. On May 30, the rover drove over a rock, cracking it open to reveal yellow sulfur crystals—a sight never before seen on the red planet. This find has raised numerous questions about Mars' geologic and possibly even hydrologic history. Project scientist Ashwin Vasavada from NASA's Jet Propulsion Laboratory described it as "finding an oasis in the desert," highlighting the unexpected nature of this discovery. As Curiosity continues to explore the Geddes Valles channel, it promises to uncover more secrets about Mars' ancient terrains.

We also get an update on Boeing's Starliner capsule, which has been docked at the International Space Station since June 6. Engineers have been working tirelessly to understand the thruster issues that caused delays in its return. Recent tests on a spare thruster have provided invaluable data, bringing us closer to a solution. NASA's commercial crew program manager, Steve Stitch, emphasized the importance of these tests in ensuring a safe return for astronauts Butch Wilmore and SUNY Williams.

Lastly, we delve into the mysteries of Jupiter's Great Red Spot. This colossal storm, the largest windstorm in the solar system, has been shrinking over the past century. A new study led by Caleb Kevinney, a PhD student at Yale, sheds light on why this is happening. Using 3D simulations, Kevinney and his team discovered that smaller transient storms play a vital role in sustaining and even amplifying the Great Red Spot. These findings have broader implications for our understanding of both Jovian and terrestrial weather systems.

Tune in to this episode of Astronomy Daily to stay updated with the latest discoveries and insights from the cosmos. Whether you're interested in solar dynamics, Martian geology, or the mysteries of Jupiter, there's something here for everyone. Don't miss out—listen now and keep looking up!