What are Binaural Beats? Tones produced specifically for the purpose of altering your brainwave frequencies. The posts in the link also contains an exclusive free binaural beats sample of a pure alpha wave.
Super Massive Black Holes by PHD Comics. Sagittarius A*, the super massive black hole at the center of the Milky Way, has a mass million times the mass of our sun, and a diameter equal to the distance between the sun and Mercury.
An artist's illustration of the black hole at the heart of a quasar in the distant universe. The biggest black hole known to exist lives in the nearby galaxy It's times bigger than the Milky Way's supermassive black hole.
What's Next for NASA: Planned Missions Through 2030 In honor of NASA's Anniversary we put together this infographic that shows NASA's planned expeditions through Do you think man will travel to Mars by