The iconic Veil of Orion seems to be broken

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The

has found that

, an expanding layer of dust and gas in front of the massive star cluster in the Orion Nebula,

.

Within the Orion Nebula is a massive cluster of stars known as the

.

Winds from the Trapezium stars blow a bubble of dust and gas into the area in front of them, called Orion's Veil.

Most of Orion's Veil is thin, and most of its gas is in the bubble wall.

The wall, or

is one light-year thick and is expanding toward us, and recent observations by SOFIA's (Stratospheric Observatory for Infrared Astronomy) GREAT (German REceiver for Astronomy at Terahertz Frequencies) instrument have identified some unexpected features in it.

"The bubble, with a diameter of about

, should be a nearly spherical structure, but we found a

," said Ümit Kavak, a SOFIA postdoctoral researcher based at NASA Ames Research Center, lead author of a recent article in Astronomy & Astrophysics describing the studies.

SOFIA observations show the

in this bulge, which Kavak used to determine its size, structure, and how it is expanding, in hopes of discovering its origins and future.

Shaped like a "U" lying on its side, the bulge extends well beyond the shell of Orion's Veil.

It's a likely place for the shell to pierce, and the bulge's chimney-shaped top seems to imply that it has already.

"When you break through the shell of the Veil, you effectively start stirring up a

by adding turbulence," Kavak said.

"This is not the most appetizing soup, but it is one of the ways to form new stars or limit future star formation," added Alexander Tielens, a researcher at Leiden University and co-author of the paper.

This turbulence affects the

of its surrounding region, which can ultimately lead to the creation or destruction of star-forming sites.

The group also identified a

, which they plan to investigate further in a future publication.

Together, these bulges affect the entire morphology of the Orion Nebula.

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