I do not understand that- even if it where some kind of flying light source, why would you chase it ? What what he going to do if he "caught up" with it ?
To see where the aliens will land. To find out who's going to get the anal probe.
Some of the hardware used for space exploration is really fascinating. Some hardware (like voyager) is still working 30+ years after being launched. The Russian Venera lander on Venus is amazing in another sense- that it even survived for any length of time on the surface of Venus.
Speaking of Voyager, it no longer has the solar wind on its back. It's one step closer to entering the interstellar medium. It was launched before personal computers were everywhere, before cell phones, before the internet. It's a remarkable achievement for humans.
http://www.nasa.gov/mission_pages/voyager/voyager20101213.htmlWe're doing awesome stuff...
http://tinyurl.com/3ayo8fq