young stellar object
A protostar in which the dust and gas have collapsed into a sufficiently massive body for fusion to begin. The characteristic trait of young stellar objects is the presence of jet outflows-either of molecular gas or of radioactive emissions-that interact with the interstellar medium out of which the star has just been born. See more at protostar.
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A mysterious green blob in outer space is named “Hanny’s Voorwerp.” What does that mean, and why is the blob there?Did you catch the story about a giant green blob discovered in a remote section of the universe? An intergalactic blob in and of itself isn’t an appropriate topic for a dictionary website, even if the blob has been shown to move and change color. The reason you are reading about this on Dictionary.com is the mouthful of a name: Hanny’s Voorwerp. The second word is pronounced “FOR-verp.” While the …
Nearby words
- young man,
- young offender institution,
- young one,
- young plan,
- young pretender,
- young thing,
- young turk,
- young turks,
- young's modulus,
- young's rule
The American Heritage® Science Dictionary
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