Tag Archives: Comets

Comets

The formation of the planetary bodies was not a peaceful one. Planetesimals, effectively “planet seeds” that would accrete material to gain mass, would frequently collide with each other at violent speeds. A collision between two planetesimals of similar sizes would spell the doom for both – all of their hard work accreting mass would be […] Continue reading

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Why do comets have tails?

Generally, comets got kicked out from their home which are the Oort Cloud and the Kuiper Belt. This phenomena occur due to the pull of the gravity by planets or stars. Then, their journey of growing tails begin by moving toward the inner solar system. Far from the Sun, small comets look the same as small asteroids, completely … Continue reading Why do comets have tails? Continue reading

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Rosetta and Philae

In March of 2004, two friends went ont he adventure of a lifetime. These two friends were the Rosetta space … More Continue reading

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Famous Comets

“Out to sea, the calm lagoon waters were darkening, while the comets overhead glowed brighter, omens in the gloaming.” ― Julian May, Perseus Spur A comet is an icy small body in the solar system that when passing close to the Sun, it produces a visible atmosphere or coma from a process called outgassing — Wikipedia. I always hope […] Continue reading

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Comets?! ☄️

Everyone got some basic knowledge about planets, stars, and asteroids at school, but not many people actually know much about comets. How are these things formed? Why do they have tails? How big are they? Stay with me if you want to find out. 🙂 Our entire Solar System was created by the collapse of […] Continue reading

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Asteroids: Death, or Life?

Just hitching a ride Most people don’t think of asteroids as the bringer of life to Earth. Actually, for many, it’s the exact opposite. When someone says asteroids many people automatically think about mass extinctions, specifically the extinction of the dinosaurs (which was caused by a large asteroid). However, there is a theory called panspermia which […] Continue reading

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Are We Overdue for a Mass Extinction?

People have argued about if and when the human race will die out on earth.  We have essentially taken ourselves out of the food chain, meaning that we won’t be hunted to extinction.  We have also made great strides in medicine making it unlikely that we will die out from disease.  It may seem improbable […] Continue reading

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Comets and stuff

For blog 7 I’ve decided to write about comets. Comets, according to space.com is “an icy body that releases gas or dust”(space.com) Astronomers believe that comets are leftovers of the gas, dust, ice, and rocks that originally formed our solar system. It is believed that comets carried some of the water and organic molecules that […] Continue reading

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The Stardust Mission

Missions that deliberately bring back extraterrestrial material to Earth are rare. The NASA Stardust, a probe that launched in  1999, sought to collect dust samples from the comet Wild 2’s tail. Prior to the mission, experts believed that the dust in comets’ tails would be pre-solar particles. Instead, what they found from the particles retrieved […] Continue reading

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Blog Post #7: Comets Can Be Artists Too

bbc.com A new study shows that Mercury may have been “painted” black by passing comets. In class, we have learned to compare …

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