Nasa & ... [+] Spacex have postponed their lunch attempt of the Demo-2 test flight to the International Space Station due to poor weather conditions & will make a re-attempt next Saturday. In a recent study, researchers led by Stefano Gallozzi, wrote: 'Depending on their altitude and surface reflectivity, their contribution to the sky brightness is not negligible for professional ground based observations. The Falcon 9 has suffered two catastrophic failures, one in flight and one during pre-launch testing. In a recent study, published in arXiv, researchers led by Stefano Gallozzi, wrote: 'Depending on their altitude and surface reflectivity, their contribution to the sky brightness is not negligible for professional ground based observations. That flight remains on hold while company engineers assess an apparent issue with engine turbopump machinery.
a  space station is mentioned here.
( z0 mention :ARG1 ( z1 station :mod ( z2 space ) ) :location ( z3 here ) )
(z0 / mention-01
    :ARG1 (z1 / station
              :mod (z2 / space))
    :location (z3 / here))
a space station is mentioned here .
z1 :mod z2
z0 :ARG1 z1
z0 :location z3