I'm 90% sure it's a "noun clause"
Answer:
It comes across to me that you come from a “hierarchy” culture where one would formally address an elder with respect. Here it is your uncle, whom I assume is an older gentleman, probably your parents’ older relative, living in a rural area with limited or no modern means of communication near by where he lives. Writing would be the next best thing. I would be happy to get a letter in the mail from my near and dear one who lives in another country.
I would start by saying,
Respected Uncle or Dearest Uncle….,
I hope you are doing well.
It has been a long time since we have seen each other. I remember my childhood when mummy and papa would bring us sometimes on our holidays to spend time with you. It was one of my best holdisays, and I want to visit again with mummy and my family so they too can have an experience of rural sunny life in ……..
I have not been out of the country (name your country) for some time now as I was tied down with some personal work at home and also my job kept me busy.
Now that I am able to free up some time, I thought about coming to visit you for a few weeks. First, mum was wanting to spend some quality time with you before she gets older and would not be able to travel later on alone; and second, since it is winter out here, this would be an opportune time to enjoy your sunny weather and be with you.
Uncle, I am mailing this letter to you today and we are all eagerly waiting to hear back from you soon, so we can make necessary travel arrangements.
Your nephew,
I got one called the voyager
The twin Voyager 1 and 2 spacecraft are exploring where nothing from Earth has flown before. Continuing on their more-than-40-year journey since their 1977 launches, they each are much farther away from Earth and the sun than Pluto. In August 2012, Voyager 1 made the historic entry into interstellar space, the region between stars, filled with material ejected by the death of nearby stars millions of years ago. Voyager 2 entered interstellar space on November 5, 2018 and scientists hope to learn more about this region. Both spacecraft are still sending scientific information about their surroundings through the Deep Space Network, or DSN.
The primary mission was the exploration of Jupiter and Saturn. After making a string of discoveries there — such as active volcanoes on Jupiter's moon Io and intricacies of Saturn's rings — the mission was extended. Voyager 2 went on to explore Uranus and Neptune, and is still the only spacecraft to have visited those outer planets. The adventurers' current mission, the Voyager Interstellar Mission (VIM), will explore the outermost edge of the Sun's domain. And beyond.
