Common Birds: Black and White or Gray and White Birds. Dark-eyed Junco: 5 1/2 to 6 3/4  in size. Juncos are small, dark gray birds with white bellies. Juncos look different in different regions of the United States. In the East, Juncos are dark gray with white underparts and white outer tail feathers.
The European Spallation Source (ESS) is a multi-disciplinary research facility based on what will be the world's most powerful neutron source. It is currently under construction in Lund, Sweden. At least 17 European countries will act as partners in the construction and operation of ESS.
Dimension 3. DISCIPLINARY CORE IDEASâEARTH AND SPACE SCIENCES. Earth and space sciences (ESS) investigate processes that operate on Earth and also address its place in the solar system and the galaxy. Thus ESS involve phenomena that range in scale from the unimaginably large to the invisibly small.