The giant antenna rises from the desert floor like an apparition, a gleaming metal tower jutting 16 stories above an endless wind-whipped stretch of Patagonia.

The 450-ton device, with its hulking dish embracing the open skies, is the centerpiece of a $50 million satellite and space mission control station built by the Chinese military.

The isolated base is one of the most striking symbols of Beijing's long push to transform Latin America and shape its future for generations to come — often in ways that directly undermine the United States' political, economic and strategic power in the region.

The station began operating in March, playing a pivotal role in China's audacious expedition to the far side of the moon — an endeavor that Argentine officials say they are elated to support.