February 14, 2013

5 A couple walks along a path on Valentine's day in Sarajevo, Bosnia and Herzegovina.

6 A boy looks on while standing with his father, who a rose placed on his belt, they shop for gifts on Valentine's Day in Sana'a, Yemen.

7 A couple stands in front the 'I love You : The Wall' art work by Frederic Baron and Claire Kito on Saint Valentine's Day in Paris, France.

Generations of stars can be seen in this infrared portrait from NASA's Spitzer Space Telescope. In this wispy star-forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities. (NASA/JPL-Caltech/Harvard-Smithsonian)

8 Generations of stars can be seen in this infrared portrait from NASA's Spitzer Space Telescope. In this wispy star-forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities. (NASA/JPL-Caltech/Harvard-Smithsonian)