Space Introduction- What You Need to Know

Space Introduction- If you are interested in learning more about space, you’ve come to the right place. Learn about the history of outer space exploration and basic knowledge about common space topics. Also, find out about space radiation risks. And, if you’re into science, there’s a live interactive lecture about the universe.

Basic knowledge of common space topics

If you’re a newbie in space exploration, you may be a little unsure of what you need to know. Space is a vast and complicated subject, so you may be confused about what to learn. Take this quiz to test your knowledge of common space topics. You might be surprised to learn that Mars and the Milky Way are more than just candy bars.

History of space exploration

In the 1950s, space exploration began in earnest. During the Cold War, the United States and the Soviet Union were in a competition to develop more powerful weapons and put humans in orbit. While neither nation managed to launch a nuclear warhead, the USSR developed a number of successful intercontinental ballistic missiles (ICBMs) and was a leading player in space exploration.

The first rocket to reach orbital velocities was the German V2 rocket, launched in 1942. The Soviets then launched Sputnik 1, the world’s first artificial satellite. The Russians later made the first landing on the moon with the Luna 2 space probe, in 1959.

Dangers of radiation in space

Radiation in space is one of the greatest health risks astronauts face. While Earth’s magnetic field and atmosphere shield astronauts from most harmful radiation, these barriers are no match for the environment outside of Earth. The radiation astronauts receive from space has enough energy to damage the DNA molecules in their bodies and even cause cancer over the long term.

The most severe risks are faced by astronauts on long-duration space flights. For instance, astronauts who spent six months on the lunar surface would have been exposed to at least 200 millisieverts of radiation. This is three times the daily exposure limit for astronauts on board the International Space Station (ISS). However, long-duration space flights can lead astronauts to experience substantial exposure en route and could exceed the six-month limit.

Commercial applications of space exploration

Commercial applications of space exploration involve the mining of raw materials from space objects, including asteroids and near-Earth objects. This includes metals and minerals, which can be transported back to Earth and used in construction. It also includes the mining of liquids, such as water and hydrogen, for rocket propellant.

The commercialisation of space activities requires new sources of finance. This means that space activities will need both debt and equity financing. In addition to this, space activities can lead to improvements in human health, social equality and the quality of life. However, the risks involved in commercial space activities must be carefully evaluated. This is particularly important in the early stages of space exploration.

Some examples of commercial space applications include the commercial use of satellites, remote sensing of Earth’s surface, and space tourism. Future commercial applications of space technology include space-based power generation, space tourism, and the manufacture of high-value materials in microgravity.