25 Myths You Shouldn’t Believe About Earth, Space, And Physics | IFLScience

http://www.iflscience.com/space/25-myths-you-shouldnt-believe-about-earth-space-and-physics/all/

Which of these do you believe?

  1. The Sun is yellow
  2. The Sahara is the biggest desert on Earth
  3. Astrology can predict your personality or the future
  4. When you call someone, the signal bounces off a satellite
  5. The Great Wall of China is the only man-made structure visible from space
  6. The moon’s gravity pulling on water causes the tides
  7. Lightning never strikes the same place twice
  8. The Earth is a perfect sphere
  9. Mount Everest is the tallest thing on Earth
  10. Water conducts electricity
  11. The “dark side” of the Moon
  12. Tectonic plates move because volcanism pushes them apart
  13. Going past the edge of space makes you weightless
  14. Diamonds come from coal
  15. People in the Middle Ages thought the Earth was flat
  16. Summer is warm because the Earth is closer to the sun
  17. Lightning causes thunder
  18. The Asteroid Belt is dangerous
  19. The moon is very close to the Earth
  20. You can only balance an egg during the Spring Equinox
  21. A nuclear weapon could destroy an asteroid
  22. Nothing can go faster than light
  23. The vacuum of space is cold
  24. Enrico Fermi developed the “Fermi paradox” about aliens
  25. There are only 3 phases of matter: Solid, liquid, and gas

Questions:

  • Why is important to learn science?
  • What are some problems if people have wrong scientific ideas?
  • Is scientific progress always good?

Giant Starshade Could Help Find an Alien Earth | Space.com

Source: https://youtu.be/U6Dufv_Dqtc

Article: http://www.space.com/25172-starshade-alien-earth-exoplanets-incredible-tech.html

A flower-shaped spacecraft may help scientists see Earth-like alien worlds like never before.

Called a “starshade,” the huge, sunflower-like spacecraft would deploy to its full size in space, blocking the light of distant stars so that a space-based telescope can image exoplanets in orbit around the stars. With this technology, researchers could directly image other worlds and potentially find long sought-after Earth twins, a historically difficult task for alien planet hunters.

Questions:

  • Should governments invest money in space exploration? Why?
  • Do you think it is possible to find aliens in our lifetime?