Discover the mysterious golden ball in the universe

A yellow ball-shaped block appeared in some images taken by NASA's Spitzer space telescope.

Amateur astronomers have collaborated with NASA's Milky Way project to examine tens of thousands of photos. The project focuses on a space called W33 , 13,000 light-years away from Earth. There are newborn stars bursting.

Volunteers began talking about mysterious yellow balls appearing in some pictures and Spitzer scientists announced. They think that yellow balls can be a new phase of massive star formation.

However the yellow balls are not really yellow. They only appear that way because Spitzer took pictures in infrared.

Next to the yellow balls there are also red balls with a border around the green.

There are also green shadows with a red center around the yellow ball. Green rings are thought to be the halo of organic molecules blown outside because of the radiation explosions from new stars. The red center is dust heated by stars.

Volunteers also discovered about 5000 green and red balls but the yellow balls are a new discovery.

The yellow balls look quite small in the image, but astronomers say it is actually several hundred times larger than the solar system. Astronomers are calculating the distribution of yellow balls in the area labeled W33. It looks like most yellow balls appear right on the edge of the green and red bubbles. This means that bubbles formed by young stars are triggering more stars. That process is called 'star-triggered formation'.

Reference: Business Insider