The Moon, Mars, and Beyond–God’s Awesome Universe: A scale we cannot yet fathom
This past Thursday, we had an out-of-this-world forum! Dr. Roedolph Opperman has a Ph.D. in Aerospace engineering and a bachelor’s degree in mechanical engineering. He is a lead systems engineer at a space transportation company, Momentus. Dr. Roedolph Opperman presented to us a subject that he holds very near and dear.
Dr. Opperman reminded us of the moon landing more than 50 years ago. He said that NASA aims to send man back to the moon as soon as 2025, hoping to establish a base at the south lunar pole.
Dr. Opperman described the history of our search for habitation on Mars. He explained that to this date, there have been five successful U.S. rovers sent to Mars. They began in 1997 with Sojourner, which was supposed to last only one week on the planet but lasted nearly 90 days! 2003, twin rovers launched Spirit and Opportunity, which were supposed to last 90 days. Ultimately, Spirit lasted over 6 years, and Opportunity lasted over 14 years! In 2011, the Curiosity Rover was sent up to Mars, followed most recently by the Perseverance Rover in 2021, on which Dr. Opperman himself had worked.
Each of these rovers has been a fantastic mechanical achievement for man. Perseverance is the first of the rovers to have video footage of it landing on Mars, and it was sent with a small helicopter drone to assist the rover after successfully landing on the red planet. This was a test to see how this idea would work out, intending to complete just a few flights. However, it was able to fly over 10 miles and complete dozens more flights than expected.
To get a machine that works on another planet requires a lot of extreme testing. This testing has to be completed here on Earth because, at this time, it is not feasible to send someone to do maintenance on it once it is out of orbit. This is where Dr. Opperman came into the equation with him and his team testing the rover long before it was even sent out to Mars. Remarkably, they must ensure no bacteria on the rover when testing it to reduce the likelihood that future missions to Mars will come across proof” of life that simply came from Earth.
He discussed the advancements coming from Elon Musk’s company, Space X. Their most recent rocket has a size and weight capacity that can take 100 people into space; compare that to the previous space shuttle that was only suited to take 7. This is important for the people it can take into orbit and the equipment that can be taken up because of the increased weight and storage capacity. This will reduce the cost it takes to take things to space. What may be an even more remarkable achievement is the ability to reuse their rockets and the booster stage with the propellants. This has been achieved by using a chopstick method to catch the base while it is still in the air, returning to the launch pad after take-off. This will save an immense amount of money trying to recover the materials from the ocean after the landing or build a new rocket from scratch, which was historically the case. Before Mr. Musk achieved this feat, they would crash land in the ocean where the salt water would damage components, rendering them unsalvageable or burn up in the atmosphere. With this technique of catching them, all that needs to be done is a simple refilling before they can be used again.
Dr. Opperman shifted to how even while man is making these advancements, we are still so far, not even a distant speck, in comparison to God’s glorious power. It says in Psalm 147 that God determines the number of the stars and knows them all by name. He explained that there are estimated to be at least 100 billion trillion stars in the seeable universe. This does not even take into account what we have not discovered yet! God’s promise to Abraham in Genesis 22, saying He will make his descendants the stars of heaven. As the sand of the seashore, it is even more remarkable the more we learn about how vast the universe is.
Dr. Opperman suggested a slideshow on a Sabbath evening to look at and admire some of the Hubble or James Webb telescope pictures of God’s wonderful creation of galaxies and the universe. This can help remind us of the power that our Creator has and the beauty that He provides us. We are so grateful for Dr. Opperman’s presentation and are excited by the advancements being made. Yet, we are still sober in our understanding that we can only do so much with our current physical and sensual bodies. While not now, the stars are calling, and we must go.