The field protects life from excess solar radiation
Interaction between the earth’s magnetic field, atmosphere, and solar radiation (solar wind) create the northern lights
Earth is surrounded by a magnetic field believed to be produced by convection in its molten iron core. The magnetic field produced is similar to that of a bar magnet. The axis of the Earth’s magnetic field differs from the axis of rotation by 11 °, placing the north magnetic pole in a different location than the geographic (true) North Pole.
The Earth’s Magnetic Field Protects us from the Solar Wind
Near the magnetic poles, these particles sometimes leak into our atmosphere, causing the gases to glow. This is known as the aurora or northern lights.
The maria make up the shape of the “man in the moon” or the “rabbit in the moon.”
Latin for “sea”.
Apollo 11 landed at Mare Tranquilitatis, the “Sea of Tranquility”
Originally immense impact basins, later filled with molten lava
Lunar Maria (Seas) Sea of Clouds Mare Nubium Sea of Moisture Mare Humorum Known Sea Mare Cognitum Sea of Isles Mare Insularum Ocean of Storms Oceanus Procellarum Sea of Rains Mare Imbrium Sea of Cold Mare Frigoris Sea of Vapors Mare Vaporum Sea of Nectar Mare Nectaris Sea of Tranquility Mare Tranquilitatis Sea of Serenity Mare Serenitatis Sea of Fertility Mare Fecunditatis Sea of Crises Mare Crisium Meaning Name
Formation of the Moon : There are four major theories :
Co-Accretion : The earth and moon formed individually and at the same time from the solar nebula
Fission : The moon split off from the earth
Capture : The moon formed elsewhere and was later captured by the earth
Impact : The earth collided with a Mars-sized body (not the planet Mars!) and the moon formed from the ejected material. This theory is now widely accepted.
The similarity in materials making up the Earth and Moon suggest that the Moon may have been created from Earth material ejected after a collision with a large planetesimal. EARTH MOON This computer simulation shows how the Moon could have been formed in a collision between the Earth and a large planetesimal.