Waterdrop is a spacecraft of "Threebody" civilization
from the Chinese Scifi Novel "Threebody II : Dark Forest" （三体II黑暗森林）, by CiXin Liu（刘慈欣）
Its surface is made of neatly arranged metal atoms which are strongly connected due to Strong Interaction (Physics) ,
That make the spacecraft can reflect all the things around which has nearly 100% reflectivity ,absolute smooth ,
extremely strong and around absolute zero temperture.
my concept is a little bit different of original , and I think the reflection of the object can create much more interesting things.
made in Cinema 4D