Space 1.4.5

Space exploration is the discovery and exploration of celestial bodies such as planets, moons, stars, and galaxies.

Space exploration serves several purposes, including advancing scientific knowledge, discovering new resources, and expanding human understanding of the universe.

Astronauts survive in space by living aboard spacecraft or space stations. These vehicles provide life support systems that supply air, water, food, and protection from the vacuum of space.

The speed of rockets in space can vary depending on their purpose. For example, the International Space Station orbits Earth at a speed of approximately 28,000 kilometers per hour (17,500 miles per hour).

While humans have not yet established permanent settlements on other planets, there is ongoing research and planning for future missions to enable human colonization of other celestial bodies.

Black holes are regions in space with incredibly strong gravitational forces that can trap anything, including light. They are formed when massive stars collapse under their own gravity.

Telescopes in space are not affected by Earth's atmosphere, which allows for clearer observations of distant objects. They capture light using specialized sensors and transmit the data back to Earth.

Dark matter is a hypothetical form of matter that does not emit, absorb, or reflect light. Its existence is inferred through its gravitational effects on visible matter.

The Big Bang theory suggests that the universe originated from a hot, dense state approximately 13.8 billion years ago. It explains the expansion and evolution of the universe as we know it today.

Astronauts primarily communicate with mission control on Earth using specialized radio systems. Spacecraft and space stations also have onboard communication equipment for internal communication between crew members.