NASAのインスタグラム(nasa) - 4月17日 10時03分

Today, on the other side of the globe, an astronomy experiment to study how stars are born took flight.

To the casual onlooker, the space between the stars is benign and quiet. But, vast clouds of neutral atoms and molecules, as well as charged plasma particles drift in this area called the interstellar medium — that may, over millions of years, evolve into new stars and even planets. These clouds have very low densities and the only way to study them is to measure how a cloud is affected by a star — and its associated outpouring of stellar material, the stellar wind — moving through it. This afternoon at 12:47 p.m. EDT, the fourth iteration of our Colorado High-resolution Echelle Stellar Spectrograph (CHESS-4) mission lifted off from the Kwajalein Atoll in The Republic of the Marshall Islands aboard a Black Brant IX research rocket to study these floating interstellar reservoirs and the earliest stages of star formation.
The CHESS-4 instrument was developed by the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder.
Credit: NASA

#NASA #Rocket #SoundingRocket #CHESS4 #Space #Interstellar #Stars #Clouds #MilkyWay #picoftheday #liftoff #planets

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