Gen kèk lang sou sit sa a ka tradwi pa machin epi yo ka gen erè. Ede l pi byen Li vèsyon an angle
  1. Aprann
Pou tout moun, pa gen matematik ki nesesè

Explorer

Li te gen yon gwo enfliyans sou planèt nou yo, sistèm solè a, jou ak ane, sezon, faz ak eklipse, ak syèl la.

NASA

  1. Nouvo sit entènèt

    • Our place in space · 10 min

      From your street to the edge of the Milky Way: where Earth sits, how far away things are, and how we measure it.

  2. Yon wout soti nan solèy la nan Nwèl

    • A walk from the Sun to Neptune · 10 min

      Almost every picture of the solar system is wrong about scale. Walk it at true scale and feel how empty space really is.

  3. Jou ak ane sou chak mond

    • Days and years on each world · 10 min

      Venus takes longer to spin once than to go around the Sun, Jupiter spins in under ten hours, and Neptune's year is 165 of ours. Why?

  4. Poukisa nou gen sezon

    • Why we have seasons · 12 min

      It is not about distance from the Sun. It is about tilt. See why summer days are long and winter noons are low.

  5. Faz lune ak eklipse

    • Moon phases and eclipses · 12 min

      Why the Moon changes shape through the month, and why we do not get an eclipse every new and full Moon.

  6. La nuit ciel et pollution lumineuse

    • The night sky and light pollution · 10 min

      Most people alive today have never seen a truly dark sky. See how many stars light pollution hides, and what anyone can do about it.

Sètifika yo gratis epi yo pa akredite. Li deklarasyon demisyon an sou kontni edikasyonèl