EMBARGOED UNTIL:  2:00 P.M. (EDT)
                                                            JUNE 6, 1995

                                       PHOTO RELEASE NO.:  STSCI-PRC95-24c


                   PAIR OF JETS FROM A YOUNG STAR (HH1/HH2)

This NASA Hubble Space Telescope image reveals new secrets of star 
birth as revealed in a pair of eerie spectacular jet of gas the star has 
ejected by a young star.

[top] - Tip to tip, this jet spans slightly more than a light-year.  The 
fountainhead of this structure -- the young star -- lies midway between 
the jet, and is hidden from view behind a dark cloud of dust.   The nearly 
symmetrical blobs of gas at either end are where the jet has slammed into
interstellar  gas. 

[bottom left] - A close-up of a region near the star reveals a string of 
glowing clumps of gas, ejected by the star in machine-gun like burst 
fashion.  This provides new clues to the dynamics of the star formation 
process.  The jets are ejected from a whirlpool of gas and dust orbiting 
the young star. 

[bottom right] - This arrowhead structure is a classic bowshock pattern 
produced when high-speed material encounters a slower-speed medium. 
Young stellar jets were discovered 20 years ago, in part due to visible-
light observations of bright patches of nebulosity (called Herbig-Haro 
objects), which appear to be moving away from associated protostars.

The picture was taken with the Wide Field Planetary Camera 2.   
HH-1/ HH-2 lies 1,500 light-years away in the constellation Orion. 

Credit: J.  Hester (Arizona State University), the WFPC 2 Investigation 
        Definition Team, and NASA