By Bilyaminu Abdulmumi
The first time I came face to face with a cosmic event was during the solar eclipse back in 2006. Before the event, the meteorologist announced it was coming, but while the naysayers kicked against it, the curious others, including myself, waited with bated breath. In Jega Kebbi State, a partial eclipse was experienced at about 9:40 am. The entire horizon slowly became dark for about an hour. In some other areas of the country, the eclipse was total darkness. Afterwards, the sky became clear and normal. Those who were asleep had only woken up to learn about it.
A couple of days back, on the 25th of March, another startling cosmic phenomenon took place; an asteroid passed between Earth and Moon’s orbits, specifically 175,000km away from Earth. According to astronomers, this is very close! The asteroid was nicknamed City Killer, indicating its potential to harm a city should it strike Earth on a habited area. But it was not as the name implies because, by God’s grace, the asteroid passed harmlessly as predicted.
Like all other cosmic events, the City Killer passage was discovered long before for possible action and announcement to the public, so people across the globe could follow the event live! The burning question here is, if Europe and other developed countries stand toe-to-toe proactively defending our Earth: in what part is Africa contributing? Are we stakeholders in these unfolding events?
The area of astronomy is both interesting and, at the same time, frighteningly complex; astronomy is an embodiment of epic proportions. Whenever something is referred to at the cosmic level, it is near impossible or almost infinite.
From what we learn from time to time from astrophysicists, the Sun is the centre of our solar system, and other planets, such as our Earth (and the 7 other known planets), rotate around it. To further complicate our life, the Sun is in constant spiral motion rotating around its axis, while the planets orbit around it!
The cosmic phenomenon would begin to go wild in our imagination when the concept of size and distance were brought up. The size of our Earth is about 12,800km, but compared to the size of the Sun of 1,400,000km, it is like comparing a dot with a circle. In addition, the distance between our Earth and the Sun is about 150 million km. Now imagine the size of our solar system!
The size of our galaxy (Milky Way) is mind-boggling. According to what astronomers told us, there are billions of solar systems in our galaxy. At this level, the distance is no longer measured in km but in light years. For instance, the distance between our star (Sun) to the closest Sun in our galaxy is about 4.25 light years. Light travels at the speed of 3,000km per second, so at this rate, it will only take light to travel from Borno to Lagos (a distance of about 1600km) about half a second. Now, this light that can travel in half a second from Lagos to Borno has to continue travelling for 4 years and 3 months to reach the next Sun close to ours. Pray! They told us there are billions of galaxies in the universe.
Because of this cosmos proportion, scientists such as Stephen Hawking believe that we can’t be the only intelligent in the universe. This view espouses that in one of the billions of galaxies in the universe, in one of the billions of solar systems in a galaxy, a celestial being like our Earth (bursting with intelligence) must exist. The universe is too vast to contain just one intelligence. The intelligent might be at par with us in terms of advancement, we could be way smarter than them, or the reverse may be the case. One astronomer said that it is scary anyhow one looks at the scenario: to say that we are not alone in the universe or we are alone.
The terrifying part of the multi-intelligence theory is, should the other intelligent locate us, what will be our fate? Are they going to destroy us in their search for raw materials just like we human beings are increasingly wreaking havoc on climate and habitat in exchange for raw materials (for technological advancements)? Or are they going to cooperate with us to add to our knowledge? It is equally frightening for the single intelligence theory: we are the only ones in this vastness of space. As much fantasy as the former theory looks, developed nations are not joking, as they committed a multi-billion dollar research centre in this direction: SETI (Search for Extraterrestrial Intelligence).
Unlike SETI, Earth astrophysics has been bagged. Earth doesn’t rotate on its axis for 24 hours to complete a cycle only but rotates around the Sun 365 days to complete a cycle. By God’s grace, the 24-hour cycle ensures night and day, while the 365 days cycle ensures seasons. The moon does similar; it rotates around the Earth in a month as a source of light for us, to keep time management, and to ensure Earth’s stability. Should the moon be trapped in the Earth’s shadow it will be a lunar eclipse, or should the moon pass between Earth and Sun hence blocking the Sunlight, we get a solar eclipse.
It is understandable for “people” to exhibit sheer amusement in the discussion of cosmic events. During the 2019 lunar eclipse, one deeply amused person asked: if our Earth rotates, why are we still in Nigeria? He appeared to mean that if the Earth actually rotates, then we should not be where we are now. Maybe we should be in Saudi Arabia by now!
Abdulmumin can be reached via: bilal4riid13@gmail.com.