South Africa in the late 1800s planted millions of Australian acacias to stabilise sand dunes, but today scientists say they're draining rivers and replacing native ecosystems

Across South Africa, an environmental crisis began with a plan over a century ago. By bringing in fast-growing trees from Australia to stop shifting sand dunes and supply wood for a growing nation, ...

Does Avi Loeb—Head of the White House’s New UFO Council—Know Something the Rest of Us Don’t?

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...