Tag Archives: gravity

Detecting Extrasolar Planets

Posted on April 17, 2022 by solarelizabeth

Extrasolar planets can be difficult to detect because they are tiny, far away, and dim, but the Doppler Method provides an indirect way to find them. This method involves looking for alternating blueshifts and redshifts in the star’s spectrum, which reveal a star’s motion around its center of mass. This motion could reveal the presence […] Continue reading →

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The Speed of Gravity

Posted on February 20, 2022 by Karan Bhardwaj

If the Sun were to disappear, how long would it take for us to notice? This question usually brings about an answer of ‘8 minutes’, or about the time that it takes light from the Sun to reach Earth. However, Earth is orbiting the Sun, and if it were to instantaneously disappear, would Earth still […] Continue reading →

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Blog#2 Gravity

Posted on February 20, 2022 by Irene

Ancient Greek philosophers such as Plato and Aristotle deduced that moving heaven bodies makes circular motion because a circle is the perfect heaven path. Later scientists such as Tycho claimed that heavenly bodies are pushed by angels. Nobody previous to Isaac Newton was aware of the concept “Gravity.” Perhaps the most famous legend about gravity […] Continue reading →

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The History of Gravity

Posted on February 19, 2022 by jschorr21

Gravity has been a mystery for most of human history, and it was only recently(about 350 years ago) that the first gravitational theory was published. Gravity was always thought of as a force that brought things to their “natural place.” But when Copernicus came up with his idea for a heliocentric solar system, a theory […] Continue reading →

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What makes the Tides happen?

Posted on February 17, 2022 by Johann West

This blog will be referencing information sourced from the Tides: Crash Course Astronomy #8 video. We know that mass has gravity, and more mass had more gravity. This raises the question, why does the moon have a greater impact on the Earth’s tides than the Sun, even though the Sun has such a greater gravitational …

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Gravity in Solar System

Posted on February 17, 2022 by sissichen17

Acceleration due to gravity (g) is different for different planets due to their diverse masses and radii. Physicists usually figure out the by the formula g = GM/r**2, where G is the Universal Constant of Gravitation (6.67 * 10**(-11)), M is the mass of the planet, and r is the radius of the planet. By […] Continue reading →

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The Oort Cloud

Posted on April 17, 2021 by Mykayla

The Oort Cloud is a collection of comets that orbit the Sun far outside our solar system. One estimation of the number of comets in the Oort Cloud is one TRILLION. Unlike the Kuiper Belt, which lies outside the orbit of Neptune, the Oort Cloud neither lies on the same plane as the bodies orbitingContinue reading “The Oort Cloud” Continue reading →

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Weight and Altitude

Posted on February 27, 2021 by justinboreskyvanderbiltedu

Most people know that if you were to take your weight on the earth and then the moon, you would weigh a lot less on the moon. But what about your weight with different altitudes on the earth? Surprisingly your weight also changes with varying altitudes. If you were to take your weight at seaContinue reading “Weight and Altitude” Continue reading →

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Gravity of a Mysterious Object

Posted on February 27, 2021 by lorenzchen14

Credit: Caltech/R.Hurt (IPAC) We know that there are 8 planets in the Solar System. This is a fact. You would be crazy to think that there is a 9th planet out there orbiting beyond Pluto. After all, if there was a 9th planet, why haven’t we seen it yet? Well, meet Konstantin Batygin, a professorContinue reading “Gravity of a Mysterious Object” Continue reading →

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Tides

Posted on February 26, 2021 by lauryn28

In 1687 Sir Issac Newton discovered that the tides of the ocean on Earth are primarily caused by the gravitational pull of the Sun and the Moon. This idea was supported by his universal law of gravity that asserts that any piece of matter in the universe will attract any other with a force varying directly asContinue reading “Tides” Continue reading →

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