Horsehead Nebula

Horsehead Nebula, the most famous nebulae in the sky. It looks like horse's head.It is one of my favorite nebulae!"One of the most identifiable nebulae in the sky, the Horsehead Nebula in Orion, is part of a large, dark, molecular cloud. Also known as Barnard 33, the unusual shape was first discovered on a photographic plate in the late 1800s. The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula base are young stars just in the process of forming . Light takes about 1500 years to reach us from the Horsehead Nebula. The above image was taken with the 0.9-meter telescope at Kitt Peak National Observatory."

Raining days

The weather is so bad for this week . It have been raining all these days. Sometimes when I wake up in the morning , I can not tell the differences about day or night , since sky always looked dark . My mood is easy to be affected by weather , just like a huge , black cloud upon my head recently . My friends asked me what happend , but even myself can not find the answer . I think maybe my heart lose direction , and don't know how to go on . I hope the bad feelings will not linger for too much time . I want to be happy , always smilling , and bring joys to the people around me.