PHD Comics: Gravitational Waves Explained Simple explanation but really interesting for further understanding on gravitational waves. "That's one small step for man, one giant leap for mankind" Neil Armstrong quote Mehr
SPACE Astronomy Lesson: Know Your Nebulae. "The heavens declare the glory of God, the skies proclaim the work of His hands, day after day they pour forth speech, night after night they display knowledge
May 2015 - Zecharia Sitchin described Nibiru according to Sumerian cosmology as the planet. Nibiru is home to an alien race called the Anunnaki an extreme advanced extraterrestrial civilization. Researchers have talked about the possibility.