What is the main difference between Mercury and Neptune?
Mercury is an inner planet with a thicker atmosphere and a longer year than Neptune. Mercury is an inner planet with a thinner atmosphere and a shorter year than Neptune. Neptune is an inner planet with a thicker atmosphere and a shorter year than Mercury.
What are two major differences between the Moon and Mercury?
After all, the two bodies have significant differences: unlike the moon, Mercury has a global magnetic field; its density is higher; there is an abundance of volatile elements such as sulfur; its surface contains much less iron, particularly in its crustal silicates — which indicates that the processes deep inside both …
What if humans went extinct?
Earth would flourish. It appears the vast over population and pollution of the world is the result of over thirty millennia of struggle to reach the Moon and determine its nature. If humans went extinct then the state of the earth would be of no consequence to us because we wouldn’t exist.
What would happen if all humans jumped at the same time?
What if we all jumped at once? Because people are spread somewhat equally around the planet’s spherical surface , if we all jumped in place, nothing much would happen — all our lift-offs and impacts would cancel each other out, resulting in zero net force on the Earth, according to work by physicist Rhett Allain.
What are the similarities and differences between Mercury and the Moon?
Mercury is a planet much like the Moon. It has no atmosphere, and its surface is covered with circular im pact craters and huge, round basins. Most of Mercury looks much like the lunar highlands; apparently it was subjected to the same bombardment that shaped the Moon in primordial times.
What are the similarities between Mercury and Earth?
While both are terrestrial in nature, Mercury is significantly smaller and less massive than Earth, though it has a similar density. Mercury’s composition is also much more metallic than that of Earth, and its 3:2 orbital resonance results in a single day being twice as long as a year.
Why do we see 2 suns?
The photograph shows an illusion of two suns in the sky caused by the presence of ice crystals in the atmosphere which happens below temperatures of -30℃. The sun gets reflected by the ice crystals which act like a mirror. On few occasions, an illusion of three suns is also created.
Are there 3 suns?
Not one, but three suns were seen in Mohe town of Tuqiang in China for about 3 hours — from 6:30 am to 9:30 am. This unusual event is a rare optical illusion caused by a natural phenomenon known as a ‘sundog’.
Which country has 30 minutes night?
Norway
Where is the longest night on earth?
Sweden
Is Antarctica dark for 6 months?
Antarctica has just two seasons: summer and winter. Antarctica has six months of daylight in its summer and six months of darkness in its winter. The seasons are caused by the tilt of Earth’s axis in relation to the sun.