Exploration of Jupiter disadvantages for colonization because of the severe radiation conditions prevailing in Jupiter's magnetosphere and the planet's particularly deep gravitational well. Jupiter would deliver about 36 Sv (3600 rem) per day to unshielded colonists at Io and about 5.4 Sv (540 rems) per day to unshielded colonists at Europa, which is a decisive aspect due to the fact that already an exposure to about 0.75 Sv over a period of a few days is enough to cause radiation poisoning, and about 5 Sv over a few days is fatal. Ganymede is the Solar System's largest moon and the Solar System's only
Age of Aquarius first lines: "When the Moon is in the seventh house and Jupiter aligns with Mars, then peace will guide the planets and love will steer the stars". Astrologer Neil Spencer denounced the lyrics as "astrological gibberish", noting that Jupiter aligns with Mars several times a year and the moon is in the 7th House for two hours every day. These lines are considered by many to be merely poetic license, though some people take them literally. An example is the identification of Valentine's Day 2009 as the "perfect alignment to support our collective manifestation of love and peace and dawning