Transcript
Welcome back to Deep Space, with Doctor Leo Nova. Today, something at the edge of physics. For a few minutes, day turns to night. The Sun disappears, and a ring of light hangs in the sky. This is a total solar eclipse. It happens when the Moon slips directly between the Earth and the Sun, casting its shadow across our planet. Inside a narrow path of totality, the Moon covers the Sun completely, revealing the corona — its faint, glowing outer atmosphere. It's a cosmic coincidence: the Sun is about four hundred times wider than the Moon, but also four hundred times farther away, so the two appear almost exactly the same size. From a fleeting alignment of three worlds to one of nature's greatest spectacles, the eclipse reminds us we're riding a moving stage through space. That's it for this episode of Deep Space. Subscribe, and keep looking up.