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The age of the universe
A good way of estimating the age of the universe is dating the oldest objects in the Milky Way Galaxy. Being that the age of the universe varies directly with the Hubble constant, the cosmological constant and the average density of the universe, the direct estimate of the age of the universe can be used to define cosmological models. The metal-poor stars found within the spherical halo of the Milky Way are some of the oldest objects in the universe. As we speak, there are three main methods used to date the stars. These are nucleochronology, main sequence turn-off gases and white dwarf cooling curves. This paper seeks to outline the age of the universe, the technologies related to this field, and the astronomical importance.
NASA used their Wilkinson Microwave Anisotropy probe in 2012 to estimate the age of the universe as 13.772 billion years. This had a margin error of 59 million years. The following year, Planck measured it at 13.82 billion years. The globular clusters point to an age of 11 billion years, which is close enough to the above-mentioned estimates. The uncertainties have been significantly reduced by NASA’s Spitzer Space Telescope. Scientists later used this Hubble constant together with WMAP measurements to make independent calculations of the force of dark energy (Redd para 14).
Importance of the Age of Universe to Astronomy
Andrea Kunder, speaking to Space.com, said globular clusters are important in the reconstruction of the history of the galaxy, just like fossils are important in the reconstruction of the history of the earth. The Milky Way Galaxy comprises about 150 globular clusters which help in...
The oldest of them has stars as old as 11 to 18 billion years old. The evident gap springs from the inaccurate determination of the distances to the clusters, which subsequently affects the brightness and mass values. If for instance the cluster is at a farther distance than what the scientists measure, the stars in the real sense would be brighter, more massive and younger (Redd para 9).
Humans, through scientific discovery have also discovered that eight other planets do orbit a star only halfway through its lifetime. One of these planets contains methane and water. And thus, scientists were able to shoot a robot to the planet that is 140 million miles away from the earth, and even drill a hole by itself (Kerner para 7).
Astronomers were able to photograph the teeny-tiny silver through space of time, some 13 billion years ago. Humans have also walked on the moon and collected rock samples from it, and tested gravitational forces. They even managed to take a picture of the earth from the moon, which inspired man to conserve the only planet in the universe known to support life (Kerner para 8).
All these discoveries were made possible by inspiration of the humans on what they were studying. It would be very miserable if these people could not put their efforts on what they loved and counted as meaningful to them. Amazing too is the fact that such vast knowledge of the universe can be contained in the tiny thing that the human brain is (Kerner para 9).
New Discoveries
Life in outer space can only be found on a planet similar…
The diameters of these clusters range from about 75 light years to as much as 400 light years and can be as far as 300,000 light years from the Earth. In many parts of the Milky Way galaxy, there exist dense concentrations of interstellar matter known as nebula and are generally classified as emission nebula, reflection nebula or dark nebula. Emission nebula are by far the most exotic, for they
Whitney collection, what qualities do the art works seem to have in common? When you look at the Whitney collection from the year 2000, it is clear that that all of the artists are reflection of a sense of realism in the various works. As, they are taking everyday events and are depicting them in such a way, that they are giving the audience a sense of appreciation for what
The evolution of the intermediate-mass stars is a good example of the process by which stars are born, live, and die. This star begins as a swirling cloud of gas that takes 100,000 years to collapse into a protostar. Hydrogen fusion begins in the protostar and causes the creation of a T-Tauri star which is a variable brightness star. This new star contracts for 10 million years until the
Electromagnetic waves are energy waves produced by the oscillation or acceleration of an electric charge. They include radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays. Their wavelengths in meters are: radio waves (0.1 to 1000), microwaves (1 x 10-3 ~ 1 x 10-1); infrared (7 x 10-7 ~1 x 10-3); visible light (4 x 10-7 ~ 7 x 10-7); ultraviolet rays (1 x 10-8 ~
It is almost as if Hawking wants science and religion to agree. He also uses a sense of humor often times to get his point across. In UIAN, he uses visual jokes, written puns and several witticisms to get you in a light mood to keep going through the book and picking up the important ideas that are in there. His life work has been dissecting these questions and proposing answers
Montessori -- Cosmic Educational Strategies The success that the Montessori system of learning has achieved is in part due to the theory of cosmic education and its affect on children. Maria Montessori wrote that the universe is "…an imposing reality, and an answer to all questions… All things are part of the universe and are connected with each other to form one whole unity…" (To Educate the Human Potential). Moreover, this