In tonight's edition of Planet Waves FM, I honor the life, the work and the astrology chart of Dr. Oliver Sacks, who died recently at age 82. He was the author of Awakenings and The Man Who Mistook His Wife for a Hat. I then respond to various presentations by Neil DeGrasse Tyson, an astronomer who likes to pick on astrology. I challenge Tyson not on the validity of astrology but rather on the lack of any scientific principles in his critique. In the second segment I look at the current astrology: Venus conjunct Mars, Venus stationing direct, and the Sun-Neptune opposition. While I'm doing that I look into the questions of how we know anything at all from astrology.