domenica 8 maggio 2016

NYT Science: Watch Mercury Sail Across the Sun

Watch Mercury Sail Across the Sun
By NICHOLAS ST. FLEUR

For about seven hours starting Monday morning, the planet will appear as a black speck awash in the sun's light in an event called the Mercury transit.

Published: May 9, 2016 at 06:00AM

via NYT Science http://ift.tt/1Xg21pY