Decades ago,
Venansio Senoga, a veteran radio personality on Uganda's airwaves nurtured my astronomical interests through a weekly broadcast sponsored by Sembule Steel Mills Ltd. I wish that program gets airtime again. It could be the beginning of Uganda's
space program.
As
NASA shifted dates for the resumption of shuttle missions, my attention switched to reading a bit more about my heavenly interests, and while engaged thus, wondered how fast and accurate space travel could get. Even if man has not yet landed on our nearest planetary neighbour, that should not be a reason to stop pondering a journey further afield - to the nearest star.
Proxima Centauri landing? No. Just a fly-by suffices. NASA's space ships travel at a heavenly
7.8 km per second. At that speed, it would take 160,000 years to reach Proxima Centauri, the nearest star. The fastest man-made object, the
Helios 2 has a speed of
70.2 km per second, which reduces the journey to 18,000 years. Still bad. For purposes of comparison, the speed of sound in air is about 340
metres per second only and the speed of light in a vacuum is about
300,000 km per second.
However, scientists are working on a gadget that will dash at
300 km per second, trimming the Proxima Centauri journey to a spooky 4,200 years ONLY - firmly beyond the current lifespan of both man and machine. Heavens!