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Saturn's rings will 'disappear' this weekend. Here's why this phenomenon happens in cycles
Saturn's rings tilt out of view every fourteen to seventeen Earth years. In 2032, they will be at their best again during ...
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The vernal equinox is here, but what does that mean?
The Northern Hemisphere’s vernal (spring) equinox can fall between March 19 and 21 while the fall equinox hits sometime between September 21 and 24.
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Word of the Week: Theia. Why does the Earth tilt, and why does it matter?
It caused ejected debris to form our moon — and caused the Earth’s tilt. Theia is named for the Greek goddess of light, daughter of Gaia (Earth) and Uranus (sky), and mother of the sun, moon and dawn.
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Study Reveals How Earth's Orbit Triggers Ice Ages, And There's One in The Next 11,000 Years
Earth's history is a roller-coaster of climate fluctuations, of relative warmth giving way to frozen periods of glaciation before rising up again to the more temperate climes we experience today.
The first day of spring is here. What is the spring equinox?
The vernal equinox marks the start of spring in the Northern Hemisphere — so does that mean this is the only day out of the ...