Can a supernova destroy Earth? A supernova is a star explosion – destructive on a scale almost beyond human imagining. If our sun exploded as a supernova, the resulting shock wave probably wouldn’t destroy the whole Earth, but the side of Earth facing the sun would boil away. Clearly, the sun’s distance – 8 light-minutes […]
Why is the Moon heavily cratered?
Why is the Moon heavily cratered? Why does the Moon have so many craters while Earth has so few? On Earth, impact craters are harder to recognize because of weathering and erosion of its surface. The Moon lacks water, an atmosphere, and tectonic activity, three forces that erode Earth’s surface and erase all but the […]
Does having a long cycle affect fertility?
Does having a long cycle affect fertility? Longer cycles are an indicator that ovulation is not occurring or at least not in a regular manner which can make conception difficult. What can I do during my follicular phase to increase fertility? The Follicular Phase This is the time in your phase to really reduce inflammation. […]
When was first photo was taken?
When was first photo was taken? 1826 Centuries of advances in chemistry and optics, including the invention of the camera obscura, set the stage for the world’s first photograph. In 1826, French scientist Joseph Nicéphore Niépce, took that photograph, titled View from the Window at Le Gras, at his family’s country home. How was the […]
What does a waning gibbous moon do?
What does a waning gibbous moon do? The Waning Gibbous phase is when the lit-up part of the Moon shrinks from 99.9% to 50.1%. It starts just after Full Moon and lasts until the Third Quarter Moon. Waning means that it is shrinking and getting smaller, while gibbous refers to the oval-to-round shape. How long […]
Does Earth have any rings or moons?
Does Earth have any rings or moons? Earth has no rings. Does Earth have a ring system? If you’re talking about majestic ice rings, like we see around Saturn, Uranus or Jupiter, then no, Earth doesn’t have rings, and probably never did. This ring would cast a shadow down on the surface of the Earth, […]
Did the Moon sound like a bell?
Did the Moon sound like a bell? Though the Apollo lunar modules were built for the sole purpose of landing two men on the surface of the Moon, their usefulness didn’t end after ascending from the lunar surface. These crashes caused moonquakes, and scientists measured the vibrations moving through the Moon and found it rings […]
How are craters on the Moon being dated?
How are craters on the Moon being dated? Traditionally, dating craters is done by recording the number and size of superimposed craters on the ejecta — the material displaced by impact — of each crater. Why does crater density vary on the Moon? The density of impact craters varies from the heavily cratered southern hemisphere […]
What is the difference between the First Quarter Moon and the third quarter moon?
What is the difference between the First Quarter Moon and the third quarter moon? Half Moon Visible During the Day The Third Quarter Moon rises in the middle of the night and sets in the middle of the day. This is the opposite of a First Quarter Moon, which rises around midday and sets around […]