Advert Trump told Bukele he needs 'to build about five more places', in reference to prisons ... Reddit users have spotted a mysterious 'mound' on the prison complex (Google Maps) A concerning ...

A camera affixed to the International Space Station recently spotted some curious symbols amid a barren desert landscape.

NASA plans to explore these pits with spacecraft and robots. Mars was once like Earth. Life may have survived in these underground caves. "Holes such as this are of particular interest because ...

In a surprising twist on the old “trash to treasure” saying, scientists have uncovered an enormous cache of rare earth elements worth an estimated $8.4 billion—hidden in plain sight across ...

(Cliff Grassmick/Staff Photographer) Local nonprofit Sustainable Resilient Longmont will host its annual Longmont Earth Day Celebration on Saturday. From 10 a.m. to 2 p.m. at Timberline PK-8 ...

From dormant volcanoes and salt pans to urban forests and library gardens, these are the places we go for peace and quiet.

Fresh advances in 3D scanning technology are making it possible to explore some of the hardest-to-reach and most fragile sites on Earth. This rendering of the Titanic is based on 715,000 photos ...

Beneath the turquoise waters of the South Pacific hides a massive secret—Zealandia, a sunken landmass stretching nearly two ...