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Credit & Copyright:
Explanation:
Galileo Galilei made a good discovery great. Upon hearing at age 40 that a
Dutch optician had invented a glass that made distant objects appear
larger,
Galileo crafted his own
telescope and turned it toward the
sky.
Galileo quickly discovered that our
Moon had
craters, that
Jupiter had it's own
moons, that the
Sun has
spots,
and that
Venus has phases like our
Moon.
Galileo, who lived from 1564 to 1642, made many more discoveries.
Galileo
claimed that his observations only made sense if all the planets revolved
around the
Sun, as championed by Aristarchus and Copernicus, not the
Earth,
as was commonly believed then. The powerful
Inquisition made
Galileo publicly
recant this conclusion, but today we know he was correct.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day