 Current star-forming theories predict that during a star's relatively brief protostar stage, lasting only about 500,000 years, the star rapidly accumulates mass. As the star heats up, it creates a stellar wind, creating cavities in the gas and dust cloud that surrounds them. These cavities grow in size until the entire gas cloud around the star is completely pushed away. At this point, the star stops accumulating mass. These four images taken by Hubble reveal the chaotic birth of stars in the Orion complex, the nearest major star-forming region to Earth. Although the stars themselves are shrouded in dust, they emit powerful radiation, which strikes the cavity walls and scatters off dust grains, illuminating in infrared light the gaps in the gaseous envelopes. Researchers found that the cavities in the surrounding gas cloud are not growing regularly as current star-formation theories propose. The James Webb Space Telescope will probe deeper into this protostar formation process and find out what is really happening.