Weather cooled off a bit, but still humid. The creeks along the Hyacinth were dry and gave the trail a different look. There were several good fossil finds. Spotted some bright green Beard lichen. Walked across the log that hangs over the creek. I've taken its picture several times in the past.

Past and Present

I also paused by the trail bridge to watch a Red-spotted Purple butterfly sunning itself on the railing, its iridescent blue wings flashing in the dappled light. Looking down at the ancient gray limestone slabs in the dry creek bed, covered in trace fossils from an inland sea 400 million years ago, really skews your sense of time. Speaking of deep time, I’ve been following the news this week about the newly announced Fermi Explorer Mission. A nonprofit just unveiled plans to use AI-assisted trajectories and solar electric propulsion to send a small, $15 million probe to Alpha Centauri by 2029. It’s wild to think that their spacecraft will take 80,000 years to reach the nearest star system, yet that unimaginably long interstellar journey is barely a blink compared to the ages these fossilized marine tracks have spent waiting in the Kentucky dirt.

It's a much-needed distraction from the heavier news cycles lately. Between the endless political grandstanding ramping up for the midterms and the passing, grim headlines of border skirmishes abroad, turning my attention to nature and our first deliberate technological leaps toward another star feels incredibly grounding. Back here at home, the city is gearing up for kick-off weekend, and I'm tuning in later tonight to watch the Louisville vs. Ole Miss game. But for right now, breathing in the unpolluted air—certified by that sensitive bush of beard lichen—and listening to the quiet rustle of the woods is exactly what I need. It’s a beautifully peaceful Sunday on the trail, and honestly, the future is looking pretty bright.

Beard lichen (Usnea) - A pale-green, thread-like organism formed by a symbiotic partnership between a fungus and an alga. Lacking true roots, it absorbs water, gases, and nutrients directly from the atmosphere, making it extraordinarily sensitive to its surroundings. Environmental toxins—especially sulfur dioxide, heavy metals, and nitrogen pollution—easily disrupt its delicate photosynthetic balance, causing it to wither and die in degraded environments. Because of this extreme sensitivity, beard lichen acts as a natural air quality monitor (or bioindicator): finding vibrant, bushy clusters hanging from forest branches is a reliable testament to exceptionally clean, unpolluted air.