On July 20th 1969, Neil Armstrong, became the first man in history, to walk the surface of the moon. Buzz Aldrin joined him 20 minutes later. In total, they spent about 21 hours on the lunar surface while the mission duration was 8 days and 3 hours long. Their foot tracks are still intact today, and could possibly last for millions of years because the moon doesn't have an atmosphere to erode them. Earth's gravity is about six times stronger than the moon's gravity. Which means your weight on the Moon is 16.5% of what you would experience on Earth. In other words, if you weighed 100 kg on Earth, you would weigh a mere 16.5 kg on the Moon. Imagine the muscle mass of a 100kg body who weighs only 16kg. You'd feel like a super hero on the moon. You'd be able to throw a baseball several kilometers away. But being a super hero on the moon has one very serious drawback. Because your body is experiencing microgravity and it's not working against the tug of earth's gravity, eventually, you'd start losing muscle strength and bone density. A problem that must be solved before we make the dream of space colonization come true. On sep 12, 1962, President Kennedy gave his famous moon speech. Saying We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard. But we went to the moon because of the cold war, not space exploration. Nevertheless, we all hope that one day, we will colonize the moon.
#4 Mars
The Romans, who glorified war, considered Mars a mighty warrior. Some Romans worshipped Mars the god of war, leaving sacrifices at his altar. But Mars isn't the red planet because he was a bloodthirsty god. The surface material of Mars contains lots of Iron Oxide. So, Mars is red because it has a layer of rusty dust covering its entire surface. On November 26, 2011, a car-sized rover designed to explore Gale Craters, invaded the surface of Mars. Since then, we've been able to see close up high definition pictures of the surface of the red planet. Making us wonder, what it would be like, to be a citizen of Mars. Billions of years ago, Mars was a warm and wet world that could have supported microbial life. And that's why scientists are focused on exploring Mars more than any other Planet. It could potentially reveal evidence of alien microbial life from eons ago. Recently, scientists found evidence of liquid water on Mars. A reservoir of liquid water may be hiding under the ice cap on the south pole of Mars. But as far as we know, Mars is red and dead. And it's hostile to human life. The thin Martian atmosphere consists of about 96% carbon dioxide. So the first settlers on Mars, will most likely live on domes. Stephen Hawking, urged for a plan to become an interplanetary species. He said Human race is doomed if we do not colonize the Moon and Mars.
#3 Titan
Titan is the largest moon of Saturn. It is the only moon known to have a dense atmosphere, and the only object in space, other than Earth, where clear evidence of stable bodies of surface liquid has been found. Titan is 50% larger than Earth's Moon, and it's 80% more massive and it's even larger than the smallest planet, Mercury. Discovered in 1655 by Dutch astronomer Christiaan Huygens, Titan is primarily composed of water ice and rocky material. The atmosphere of Titan is largely nitrogen, minor components lead to the formation of methane and ethane clouds and nitrogen-rich organic smog. The climate creates surface features similar to those of Earth, such as rivers, lakes, and seas. But they are made of methane. Rain on Titan is very different from rain on Earth. The gravitational field is very weak, so you would actually see rain drops falling very slowly, and the size of those droplets are much larger than those on Earth. And don't get caught in a rainstorm on Titan. Those droplets are awfully cold. Titan receives just about 1% of the amount of sunlight Earth does. The average surface temperature is about −179 °C. As on Mars, the first people to colonize Titan, would have to live on domes.
#2 Europa
Europa is the smallest of the four Galilean moons orbiting Jupiter. Europa was discovered in 1610 by Galileo Galilei. Slightly smaller than Earth's Moon, Europa is primarily made of silicate rock and has a water-ice crust. It has a tenuous atmosphere composed primarily of oxygen. Europa has the smoothest surface of any known solid object in the Solar System. The apparent youth and smoothness of the surface have led to the hypothesis that a water ocean exists beneath it. which could harbor extraterrestrial life. In May 2018, astronomers provided supporting evidence of water plume activity on Europa. Such activity could help researchers in search for life from the subsurface European ocean. Jupiter, pumps energy into Europa because of it's gravity and has melted the ice beneath the surface. Other than Earth, It's suspected that Europa is the only object in the solar system which could harbor macro-organisms. So if we ever colonize Europa, history, this time around would be reversed.
#1 Ceres
Ceres is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter, slightly closer to Mars' orbit. Its diameter is approximately a 1,000 kilometers. Ceres is composed of rock and ice and is estimated to comprise approximately one third of the mass of the entire asteroid belt. It's the only object in the asteroid belt known to be rounded by its own gravity. Ceres is categorized as a dwarf planet. But could also be viewed as an asteroid. We've all seen sci fi movies where sufficiently advanced civilizations, portray asteroids as space gas stations. That might not be so far fetched. If we ever advance as a species, and the solar system becomes our backyard, we will start mining asteroids. Minerals can be mined from an asteroid then used in space for construction materials or taken back to Earth. These include: gold,silver,platinum, Iron, Nickel, titanium, etc. Ceres, will probably be inhabited by space drillers only. Who use it as a station before they go on with their normal jobs of mining asteroids.
#5. Dark Matter & Dark Energy Originally known as the “missing mass problem”, dark matter’s existence was first inferred by Swiss American astronomer Fritz Zwicky, who in 1933 discovered that the mass of all the stars in the Coma cluster of galaxies provided only about 1 percent of the mass needed to keep the galaxies from escaping the cluster’s gravitational pull. But the name "Dark Matter" is very misleading. Because it implies we know it is matter of some kind. But we have no idea what this thing is. A more fitting name would be, dark gravity, because we can detect the gravitational effects of this thing, but we don't know what it is. While dark energy, is an unknown form of energy, which is hypothesized to permeate all of space. Dark energy, is a theoretical repulsive force that counteracts gravity and causes the universe to expand at an accelerating rate. Together, dark matter & dark energy make up 95% of the total mass-energy of the u
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