Allende's Role In Planetary Science

Large amounts of iridium – a chemical element that is not a part of the Earth’s crust composition – were originally found in rocks of Europe and United States, and have been found everywhere ever since. Iridium, common in meteorites, is a testable evidence of the disaster hypothesis. Gould continues that the Cretaceous debacle, which is one of five episodes of mass dying, occurred at the same time as the large comet might have smashed into the Earth. The author believes this is not merely a coincidence, rather, it is a proof of the cause-effect relationship. The demise of a wide range of habitats along with the extinction of dinosaurs gives an inestimable advantage to the disaster theory over other claims, the author adds. The comet struck the Earth, and habitats, from terrestrial to marine, died with geological suddenness. Finally, this hypothesis has had an impact on the study of an atomic war and its consequences. A nuclear war, Gould says, may cause a huge drop in temperatures and result in the extinction of humanity. Testable evidence, study, development, contribution – all this makes good science.

Tycho Brahe is remembered for many things: his golden nose, his ignominious death, and his famous last words. All of these things have gone down in history. However, Tycho Brahe was well-known in his time as a respected and well-paid astronomer. His observations were second to none. He was unsatisfiable and meticulous in his profession, building two of the finest observatories of his time, the second because the first was not up to his own high standards. He is still regarded as one of the best naked-eye observationalists of all time (Burke-Gaffney, 153).

The solar system was created 4.6 billion years ago by a gravitational collapse. A solar system is a star that has planets, moons, asteroids, comets, and meteoroids travel around it. The solar system contains eight known planets which are Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Neptune. There is around several hundred dwarf plants but only five are currently recognized. The solar system has about 181 moons which orbit around the planets in the solar system. There is also about 150 million asteroids and 3,406 comets also in the solar system.

“The lights that filled the universe could be channeled, dissected, magnified, and measured by human ingenuity” (enlight, 2). There was a significant breakthrough in regards to what could be done in continuing to explore new theories.

Astronomers have identified plenty of objects that were circulating the sun farther away from Neptune since the year 1992. According to research, there are more than 70,000 of these small objects named as Trans-Neptunians, which had a diameter that was larger than 100 km. Also, these objects extended from Neptune’s orbit from 30 astronomical units (AU) to 50 astronomical units. There is a thick band in which these Trans-Neptunians were restricted in and this ring was named as the Kuiper Belt. One may ponder what is the significance of the Kuiper Belt? Astronomers believe that the objects within the Kuiper Belt may be the ancient remains from the early stages of development of the solar system.

Complete the table based on the readings for this week: Ch. 1–4 of The Essential Cosmic Perspective.

The sedimentary layers of rock and soil are used by the evolutionists to argue that the layers of rock would have gradually built up over millions of years. Paul D. Ackerman in his book, It’s a Young World After All: Exciting Evidences for Recent Creation, argues that if it took millions of years to build the rock layers found in the Grand Canyon, then scientists should be able to encounter countless numbers of meteors. “With the passage of vast amounts of evolutionary time, these accumulating meteorites would be incorporated into the geologic column, and there should be many of them contained in the rock layers today.” Geologists should be coming across chunks or at least pieces of meteors when digging or observing the layers. However, they do not; which means that there must have been a catastrophic event that laid down the geologic column quickly. This would explain why there are not any indications of meteors in the geological column. Ackerman ends the chapter with a clear cut conclusion: “What do the data show? A clear result in favor of a recent creation. One survey of the literature a few years ago failed to turn up a single case of a meteorite being found in the geologic column. The meteorite clock reads clearly to the effect that the earth is not very old.”

Initial Preview: Throughout this speech you will grasp knowledge about the inception of Travi$ Scott, his astronomical rise, and his successes today.

Several unresolved problems remain concerning the Orion Nebula. The fate of the protoplanetary disks, for example, is presently impossible to predict. Without a more detailed understanding of how planets actually form, it cannot be assumed that the events within the Orion Nebula are analogous to the events that led to the formation of the planets in the solar system. Furthermore, the detection of water in the nebula has revealed the need to revise the theory of star formation to

In the beginning, impacts of very large objects were very common, some as big as Mars or half the diameter of Earth. Collision of large bodies orbiting Earth played a role in its initial tilt of spin axis, the length of its day, direction of spin, and the thermal state of the interior. This violent bombardment continued for 3.9 billion years. Final composition of Earth had several crucial structural effects. Enough metal was present early on to allow formation of an iron and nickel rich core that is partially liquid. This enables a magnetic field that deflects some harmful radiation from reaching the surface. Enough radioactive elements are also present in the core to maintain long term heating which drives plate tectonics. At 4.5 billion years ago, Earth separated into different layers: an inner core (made of iron and nickel), a land layer of lower density material, and an early atmosphere of carbon dioxide and steam. At 3.9 billion years ago, surface temperatures dropped to a range where liquid water could be maintained. Liquid water makes up approximately 75% of the planet's surface today which is roughly what it was then. The most important requirement for life as we know it is the presence of liquid water. This is the one substance that can serve as a universal solvent - that is, it can dissolve and transport minerals and

hit Earth are found to be great discoveries. These small space rocks that have been chipped off

The most damage is actually caused by a shock wave that is produced from a meteor that breaks apart in Earth’s atmosphere. In 2013, the Chelyabinsk meteor broke apart around 15 miles above the ground and created a shockwave that is equivalent to a 500-kiloton explosion and it injured around 1,600 people. Unfortunately, astronomers cannot predict meteorite impacts because they are too small to detect and the large ones that can be seen are too unpredictable. Meteoroids that are made of stronger materials like that of an asteroid and meteors approaching Earth slowly are the ones that usually have a better chance of impacting the ground. Luckily, around 90 to 95 percent of meteors never reach the ground. One interesting thing is that, Earth has actually seen meteorites from the moon and Mars. Impacts from meteoroids on the surface of the moon and Mars have sent chunks of the surface flying into space and eventually some of them find their way to Earth. When meteorites are not causing damage or harming people, they do provide a beautiful light show and they provide scientists with an opportunity to study the composition of comets, asteroids, the moon, and

Uncovering the mysteries of Jupiter is a crucial step for a greater understanding of our Solar System. Being the massive planet that it is, this mysterious planet may hold many answers to how our the Solar System formed and evolved. The understanding of the origins of the universe includes answers even to the formation of Earth itself. Many believe that the research of Jupiter will lead to discoveries on planet formation and the role of giant planets on the formation f stars and other smaller bodies. Mysteries of Jupiter include its composition, what is under its clouds, what is in its core and its magnetic field. Research on the amount of water in the planet will tell us about the

Surprisingly, the clay held almost 30 times more iridium than the limestone layers above and below the clay. Similar layers in other parts of the world gave the same results. The conclusion was that a giant meteorite hit the Earth 65 million years ago and had released a large

Since the beginning of recorded civilization, stars played a huge role in religion and proved vital to routing. The invention of the telescope, the discovery of the “laws of motion” and gravity in the 17th century prompted the