π Interplanetary travel has been achieved, but interstellar travel is a future possibility.
π Voyager 1 is expected to reach interstellar space soon, showcasing our progress.
π The Hayden Planetarium's digital universe demonstrates the vastness of the Milky Way and the distance to neighboring stars.
β±οΈ Even at the fastest speed ever reached by any man-made object, it would take 19,000 years to reach Proxima Centauri.
π Future technology advancements may allow for near-light speed travel using solar sails or theoretical concepts like wormholes and the Alcubierre drive.
π Determining the optimal time to begin an interstellar journey is referred to as a Wait Calculation.
Based on current technology and the pace of progress, it would take at least 1,104 years to reach Bernard Star, 6 light years away.
Interstellar travel faces challenges such as survival in space and avoiding collisions with interstellar material.
Exploring and colonizing the entire galaxy could take between 5 to 50 million years.
π« Humans exploring beyond the solar system deemed improbable.
π Traveling at the speed of light distorts the universe's appearance.
π Simulation shows what it would look like to accelerate near the speed of light.
π The possibility of humans traveling to interstellar destinations depends on optimism or pessimism.
π₯ The human body is vulnerable in the vacuum of space, causing various reactions when exposed.
βοΈ Exposure to the vacuum of space would cause the body to cool, inflate, and experience drying and freezing.
π In space, without oxygen, consciousness would be lost within 15 seconds.
π₯ Heat would be lost through radiation, making the body cool down slowly.
π The Fermi Paradox raises the question of intelligent life on other planets.
π½ The possibility of intelligent life visiting other stars.
π The different reasons why we may not have been visited by aliens.
π Encouragement to live a life that is worth visiting by extraterrestrial beings.