title StarsFullpg


Mercury102554842DOmgVv_ph PA080012

Mercury is the closest planet to the Sun and can only be seen either just after or just before sunrise. Mercury orbits the sun in just 88 days but takes nearly two months to rotate on its axis. As a result, Mercury's day and night each last 88 days. Mercury has almost no atmosphere and the temperature can reach 420 degrees in the 'daytime' and minus 180 degrees at 'night'.