Star Trails: From Backyard Astronomy to Cosmic Wonder

What if the mysterious "Planet Nine" isn't a planet at all? In this episode, we journey to the distant frontier of our Solar System to explore one of astronomy's strangest modern hypotheses: the possibility that the unseen object influencing the orbits of distant icy worlds could actually be a primordial black hole, an ancient relic formed in the first moments after the Big Bang. Along the way, we...

For generations, we've pictured the Solar System as a stable and orderly place: planets forming where they are today and quietly orbiting the Sun for billions of years. But what if that picture is wrong? In this episode, we explore the Grand Tack Hypothesis, a fascinating idea suggesting that Jupiter may have migrated deep into the young Solar System before reversing course and heading back outwar...

Summer is almost here, and with it comes one of the richest observing seasons of the year. In this episode, we take a road trip through the summer sky, exploring the constellations, deep-sky objects, planets, meteor showers, and celestial events that will define the next three months of stargazing. Along the way we'll visit the Summer Triangle, cruise through the star clouds of the Milky Way, stop...

Back in November of 2024, I attended a star party hosted by the Midlands Astronomy Club and recorded what became one of my favorite episodes of Star Trails. This week, while taking a short break to recharge and prepare future episodes, I thought it would be the perfect time to revisit that night under the stars. In this remastered archive presentation, we’ll head out to a dark-sky observing site w...

This week we conclude our month-long journey through galaxies by exploring one of the biggest questions in astronomy: how galaxies are born, evolve, and eventually die. We begin in the aftermath of the Big Bang, tracing how tiny fluctuations in matter slowly grew into the first galaxies. Along the way, we explore starburst galaxies, galactic recycling, and the remarkable realization that the eleme...

This week we continue our month-long journey through the world of galaxies, but this time, we venture into one of astronomy’s darkest frontiers. Beyond the glowing spirals and brilliant star clouds lies a universe filled with hidden structures, invisible matter, and mysteries that continue to challenge modern science. We venture into the Zone of Avoidance, a cosmic blind spot created by the dust a...

This week we continue our month-long journey through the world of galaxies, but this time, we move beyond what galaxies are and explore what galaxies actually do. It turns out these vast islands of stars are anything but static. They collide, merge, exchange gas and dust, fling stars into deep space, and sometimes grow by consuming smaller neighbors in a process astronomers call galactic cannibali...

This week, we begin a new month-long journey into one of the most awe-inspiring subjects in astronomy: Galaxies. We start close to home by exploring our own galaxy, the Milky Way, and asking a deceptively simple question: where does a galaxy actually end? Along the way, we’ll explore spiral arms, dark matter, supermassive black holes, the hidden structure of our galactic halo, and the faint ghostl...

In this episode we step behind the scenes of modern astronomy to explore a side of the universe you can’t see, at least not directly. We sit down with Professor Enrique López Rodríguez, an extragalactic astronomer at the University of South Carolina and one of the leading researchers in the United States studying magnetic fields in galaxies. The conversation also dives into the complex behavior of...

In this episode, we explore the role of computers in astronomy. From the ancient Antikythera Mechanism and the human “computers” of the Harvard College Observatory, to the rise of electronic machines, supercomputers like the Cray-2, and modern programming languages like Fortran and Python, we trace the evolution of how we’ve learned to model and understand the universe. Along the way, we dive into...

In this episode, we move beyond what the eye can see and into a universe that has been quietly speaking all along. Radio astronomy has transformed our understanding of the cosmos, not by capturing images, but by detecting faint signals that have traveled across space for billions of years. From the accidental discovery of radio waves from the Milky Way by Karl Jansky, to the detection of the after...

What makes a song feel like space? In this special bonus episode of Star Trails, we take a deep dive into the song "Space Oddity," not just as a piece of music, but as a story of distance, disconnection, and drift. Released in 1969 at the height of the space race, Bowie’s breakout hit arrived alongside humanity’s first steps on the Moon. The BBC even used it during their coverage of the Apollo 11...

This week we step inside one of astronomy’s most iconic spaces: the observatory. Drew visits Melton Memorial Observatory and sits down with director Martin Bowers to explore what a nearly 100-year-old, urban observatory still offers today. From public viewing nights to hands-on learning, we look at how these classic domes continue to connect people with the night sky, even under city lights. Then,...

This week we leave the familiar planets behind and venture into the farthest reaches of our Solar System, into regions where the Sun’s influence begins to fade and the boundaries of our cosmic neighborhood grow uncertain. We explore the Kuiper Belt, a vast disk of icy remnants left over from the formation of the planets, and travel even farther into the mysterious Oort Cloud, a distant, spherical...

The most intriguing places in our solar system might not be planets at all. This week we turn our attention to some of the most fascinating and unusual worlds in our solar system: its moons. For most of human history, we assumed moons were quiet, lifeless companions like our own. But as spacecraft ventured deeper into the outer solar system, a very different picture emerged. Some moons erupt with...

In 2006, a group of astronomers gathered in Prague and made a decision that shocked the world: Pluto was no longer a planet. But the story of Pluto is far more complicated—and far more fascinating—than that single vote. In this episode of Star Trails, we reopen the case. From Percival Lowell’s search for the mysterious “Planet X” to Clyde Tombaugh’s painstaking discovery using a blink comparator,...

This week we leave the rocky inner planets behind and journey into the deep cold of the outer solar system. From the storm-wracked atmosphere of Jupiter to the ringed elegance of Saturn and the mysterious ice giants Uranus and Neptune, these distant worlds reveal how strange and varied our planetary neighborhood truly is. Along the way we explore how the solar system formed, why the inner planets...

In this milestone 100th episode of Star Trails, we bring the cosmos back home. After months of exploring distant stars, nebulae, and black holes, March begins with a tour of our own neighborhood: Mercury, Venus, Earth, and Mars, four rocky worlds born from the same protoplanetary disk 4.5 billion years ago, yet shaped into radically different outcomes. We’ll visit Mercury, the tiny planet that hel...

In this episode, we wrap up our month-long series on stars by exploring their final acts. Most stars don’t explode. They grow old. We’ll follow the Sun’s future as it swells into a red giant, sheds its outer layers, and becomes a dense white dwarf held up not by heat, but by quantum mechanics itself. Along the way, we’ll examine planetary nebulae like the Ring Nebula and the Dumbbell Nebula, and l...

This week we take a nerdy detour into the lives of stars by building a tiny simulated galaxy in Python. We form half a million stars, roll the clock forward 10 billion years, and discover something counterintuitive: nearly all of them are still shining. The stars that dominate our constellations, the bright, showy ones, are statistically the least likely to survive. The night sky, it turns out, is...

Stars are easy to take for granted. They rise, they set, and they seem unchanged from one night to the next. But in this episode of Star Trails, we shift our focus to what stars are actually doing right now, shaping nebulae, building solar systems, regulating star formation, and quietly organizing the structure of galaxies around them. We explore stellar nurseries like the Orion and Eagle Nebulae,...

This week, we begin a month-long exploration of the most familiar objects in the night sky, and wonder why they’re still so often misunderstood. In this episode, we take a deep dive into what a star really is, and just as importantly, what it isn’t. We’ll talk about how stars form, why they live such turbulent lives, how light escapes their interiors over immense spans of time, and why the stars w...

What if the problem isn’t the sky, but our expectations? In this episode we step back from targets, charts, and techniques to talk about something every stargazer eventually encounters: the myth of the perfect night. Clear horizons, steady seeing, and flawless gear. Astronomy culture often presents these moments as normal, when in reality they’re exceptions. Most nights are compromised, interrupte...

In this episode, we continue our January series for new stargazers by exploring one of the most quietly mind-bending truths in astronomy: everything is moving, including you. Even when you’re standing motionless in your backyard, you’re traveling through space at extraordinary speed, carried along by Earth’s rotation, its orbit around the Sun, the Sun’s journey through the Milky Way, and the motio...

This week we slow down and spend the night with one of the sky’s most iconic constellations: Orion. We'll use the mighty hunter as a guide, learning how his stars can point the way to other landmarks in the winter sky, from blazing Sirius to Aldebaran and the Pleiades. Along the way, we explore Orion’s rich mythology, his role in ancient cultures, and the remarkable deep-sky objects hidden within...