Texas Standard | Advocates fear Big Bend border wall will pollute Earth’s largest Dark Sky Reserve

Photo ©Rebecca L. Latson

The Big Bend region's Dark Sky Preserve status helps to aid research done at the nearby McDonald Observatory in the Davis Mountains of West Texas. Gabriel C. Pérez / KUT News

Texas Standard | Advocates fear Big Bend border wall will pollute Earth’s largest Dark Sky Reserve

Posted July 20, 2026

Among the many reasons people love far West Texas is the dark skies over the Big Bend region. It’s a wide-open pool of stars, complete with the Milky Way.

The skies there are some of the darkest in the continental U.S.

The McDonald Observatory, situated in the region, relies on those dark skies to study deep space astronomy — including dark energy, distant galaxies and exoplanets.

Now, many in the region fear President Trump’s plan to build a new border wall in the region will flood the area with light pollution. Dark sky defenders are sounding the alarm.

Read the full story at the Texas Standard.

Photo credit Gabriel C. Pérez / KUT News

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