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Jan
4
answered Could something temporarily break the Moon's tidal lock?
Jan
4
answered Latest sunrise/earliest sunset out of phase with solstice?
Jan
4
answered What is the physical, geometric shape of the universe?
Dec
20
revised What was the length of year 1 million years back?
Decoupling happens for all bouded objects, not our galaxy alone.
Dec
20
suggested approved edit on What was the length of year 1 million years back?
Dec
20
answered Did a piece of Halley's comet strike the Earth 1,500 years ago?
Dec
19
comment What was the length of year 1 million years back?
@FrancescoMontesano please make an answer from that
Dec
19
answered What can we expect from the first accurate image of a black hole? (wich will be taken soon)
Dec
18
comment What was the length of year 1 million years back?
I am not sure than the space "slipping under Earth's feet" would move it farther from the Sun, being Earth gravitationally bounded to Sun. If this were true, we should see expansion inside galaxies by comparing far (thus old) galaxies with near (thus recent) ones, and I have no notice of that.
Dec
16
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
It is negligible compared to the solar wind itself, as you point out, but not compared to the comet's movement.
Dec
16
answered Why don't we have 2 Summers and 2 Winters?
Dec
15
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
No. Heavier objects like hammer do not fall faster than lighter objects like feather due to their masses. It is ENTIRELY dependant upon the aerodynamics.
Dec
15
awarded  Citizen Patrol
Dec
15
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
It is FALSE that heavier objects fall faster than lighter ones. They have increased gravitational pull but also increased inertia, and the outcome is that they fell (without resistence) at EXACTLY the SAME speed. Flagging for deletion.
Dec
14
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
A sheet and a ball made from the same sheet does not differ in mass at all.
Dec
14
answered Is sundial time entirely dependent on solar azimuth?
Dec
14
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
Mass is not important. Air resistance is. A paper sheet and the same sheet made a paper ball have the same mass and fall with different speeds on air.
Dec
14
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
No, as they are ejected as a result of solar radiation (solar wind)
Dec
14
answered What are some night sky objects I could see with my Celestron UpClose 20x50 Porro Binocular?
Dec
14
answered If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?