Halleyβs Comet will pass over Earth again on 26th July 2061.
The famous comet was last seen on 9th February, 1986 and only orbits the Earth once every 75 β 76 years.
2020
The Sun makes a full rotation once every 25 β 35 days.
one full rotation equals one full day. However, our gargantuan sun takes 25 β 35 Earth days to make one full rotation!
2020