SCIENCES

wordlesstech | Sciences category, has 4 sub categories: Astronomy, Discoveries, Green Energy and Physics.

The Great Silence

For the past half-century, humanity has been listening for alien radio transmissions but so far we appear to be the only ones broadcasting into the void.

By |2018-12-05T11:55:41+02:00Dec 5, 2018|Categories: Astronomy|Tags: |