# This is your Astronomy Tonight podcast.

Good evening, stargazers! Today we're celebrating **November 18th** – a date that marks one of the most dramatic moments in planetary science history.

On this very date in **1989**, NASA's Voyager 2 spacecraft made its closest approach to **Neptune**, humanity's first and only close encounter with this magnificent ice giant. And let me tell you, what a rendezvous it was!

After a 12-year journey through the outer solar system, Voyager 2 came within just 3,000 miles of Neptune's cloud tops – closer than the distance between New York and Los Angeles – traveling at a blistering 41,600 miles per hour. Imagine that kind of speed! The spacecraft was moving so fast that if it had hit a piece of space debris the size of a grain of sand, it could have been catastrophic. Talk about cosmic daredeviling!

What Voyager 2 discovered absolutely *revolutionized* our understanding of Neptune. The probe revealed the planet's violent weather systems – including winds that screech across the atmosphere at supersonic speeds of 1,200 miles per hour, making Earth's strongest hurricanes look like gentle breezes. It discovered six previously unknown moons, measured the planet's magnetic field, and sent back the first close-up images of that mesmerizing Great Dark Spot, a storm system the size of Jupiter itself!

The data from that single flyby has kept astronomers busy analyzing and publishing papers for decades. One spacecraft, one perfect moment, one quantum leap in human knowledge.

So don't forget to **subscribe to the Astronomy Tonight podcast** to hear more cosmic stories like this one! And if you want more information about tonight's skies or past astronomical events, check out **Quiet Please dot AI**. Thank you for listening to another Quiet Please Production. Clear skies, everyone!

This content was created in partnership and with the help of Artificial Intelligence AI