@CNN: NASA to use Earth’s gravitational pull to fling a spaceship towards an asteroid today https://t.co/m78ZFcK6i7 https://t.co/ctlm9a5bTq

@CNN: NASA to use Earth’s gravitational pull to fling a spaceship towards an asteroid today https://t.co/m78ZFcK6i7 https://t.co/ctlm9a5bTq