Systems + Software

Engineering tools with a product mindset

I'm Rob Rothschild, a systems & software engineer in Bellingham, WA, focused on simulation, data analytics, and interactive tools for hardware and test systems.

Explore projects across C++ gameplay, Python and MATLAB data-analysis tools, and modern web apps built with Astro, Django, and SvelteKit.

Rob Rothschild standing with teammates beside the James Webb Space Telescope during testing.
Anticrepuscular Rays over Sicily

NASA's Astronomy Picture of the Day

2026-06-25 | Anticrepuscular Rays over Sicily

The Sun has just set... in the opposite side of the sky. Pictured here are anticrepuscular rays apparently converging in the east in this image of the limestone plateau in the heart of the Hyblaean Mountains of southeastern Sicily, in Italy. How were these anticrepuscular rays formed, if the Sun wasn't there? After the Sun set (in the west, as usual) its light still illuminated a cloud higher up in the sky. Partially blocked by the cloud, the sunlight produced patterns of light and shadow, crossing the sky in parallel lines. Perspective makes it look like they converge in the east, in the same way that train tracks appear to meet in the distance. This effect can also happen at sunrise, only the directions are exchanged. In rare cases, both crepuscular and anticrepuscular rays can be seen at the same time.