Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 20, 2025
When Halley's comet reappeared in 1835, Pontecoulant's computations for the date of perihelion passage were very exact, and afterwards he showed that, with more exact values of the masses of Jupiter and Saturn, his prediction was correct within two days, after an invisible voyage of seventy-five years!
Word Of The Day
Others Looking