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The magnetic fields of the sun distort and twist as the Earth rotates on its axis. When these fields become knotted together, they create sunspots. Usually, these sunspots occur in pairs.
Auroras also occur on planets such as Jupiter, Saturn, Uranus, and Neptune. These gas giants have thick atmospheres and strong magnetic fields. These auroras are a little different from Earth's as they are formed under different conditions.
Venus has an aurora generated by its magnetotail. Mars experiences local auroras due to magnetic fields in the crust. There are also northern hemisphere auroras caused by particles hitting the Maritan atmosphere.
Northern lights occur roughly every eleven years. Record-keeping of the sun's activity began in 1749. Since then, there have been 22 full cycles.
Particles ejected from the sun travel 93 million miles toward Earth before they are drawn toward the magnetic north and south poles. As the particles move through the Earth's magnetic shield, they mix with the oxygen, nitrogen, and other elements that result in the display of lights.
Halloween’s origins date back to the ancient Celtic festival of Samhain, in the area that is now Ireland. On the night of October 31 they celebrated Samhain, when it was believed that the gho...
The celebration of Halloween was limited in colonial New England, but as the beliefs and customs of different European ethnic groups and the American Indians meshed, a distinctly American version of Halloween began to emerge.
In the second half of the nineteenth century, America was flooded with Irish immigrants, fleeing the Irish Potato Famine. This helped to popularize the celebration of Halloween nationally.
While we are starting to pay attention to how important sleep is, the need for dark is still mostly ignored.
Being exposed to regular patterns of light and dark regulates our circadian ...
On its own, the circadian rhythm takes almost 24 hours. Our bodies rely on the Sun to reset this cycle and keep it at 24 hours, the length of our days. Light and the dark are important signals for the cycle.
During the night, body temperature drops, metabolism slows, and the hormone melatonin rises dramatically. When the Sun comes up in the morning, melatonin has already started falling, and you wake up.
During the dark, levels of the hormone leptin (hunger control), go up. This means we do not feel hungry while low levels make us hungry.
Ans research found that sleep disruption and turning on lights lowers leptin levels which makes people hungry in the middle of the night.