Local Bubble

Proper noun

 * 1)  A cavity in the interstellar medium of the Orion Arm of the Milky Way estimated to be around 1,000 light years in diameter, with the Solar System sitting close to its centre; likely to be the result of a supernova which exploded in the last ten to twenty million years.

Translations

 * Chinese:
 * Mandarin: 本地泡, 本地腔
 * Finnish: Paikallinen kuuma kupla
 * Russian: Ме́стный пузы́рь