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Astronomy

1522 days

 Date: 09/18/15 11:27   in : Astronomy 

Dark Matter Two people have been credited for determining the need for dark matter. The first was astronomer Jan Oort, who back in 1932 measured the perpendicular motions of nearby stars relative to the disk of our galaxy. By studying the gravitational influence of the disk on these sta...

 

1532 days

 Date: 09/08/15 17:07   in : Astronomy 

Mans First Encounters With The Universe Mans First Encounters with the Universe Since the beginning of time man has looked to the sky to observe what he saw there. Some have even tried to reason the patterns that were visible. The ancient Babylonians mostly ignored how it worked and mere...

 

1535 days

 Date: 09/06/15 08:41   in : Astronomy 

Hubble Space Telescope The forty-three and a half foot long, twelve ton, one and a half billion dollar Hubble Space Telescope was launched into orbit on April 24,1990 (Macchetto, p. 125). The Hubble Space Telescope or HST has been the best way to look far into the universe ever since th...

 

1539 days

 Date: 09/02/15 07:08   in : Astronomy 

Space Flight On May 25, 1961, John F. Kennedy delivered one of the most memorable State of the Union addresses in the history of the United States. “I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning...

 

1541 days

 Date: 08/30/15 12:43   in : Astronomy 

Tunguska Explosion I recently read two pieces of literature that had to deal with the discoveries of the mysterious explosion in Tunguska. One article is “What Struck Tunguska?” by Stephen P. Maron. The other is “The Fire Came By” by John Baxter and Thomas Atkins. Both articles discuss va...

 

1542 days

 Date: 08/29/15 12:00   in : Astronomy 

Astronomy #1) (A) Issac Newton’s Law of Universal Gravitation is: Two bodies attracted to each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that the further apart these t...

 

1543 days

 Date: 08/28/15 19:04   in : Astronomy 

Kepler One of the largest contributors to the field of astronomy was Johannes Kepler. His work was of utmost importance to the astronomy community as well as to other major fields of science. Using data collected by Tycho Brahe, to whom Kepler was an assistant, Kepler was able to formul...

 

1543 days

 Date: 08/28/15 12:08   in : Astronomy 

Mars The planet Mars is nicknamed the god of war. The Planet probably got its name from its red color, Mars is sometimes called the red planet. Mars’ orbit is significant because it is elliptical. Mars average temperature is about -55C and at the winter poles it is almost about 27 C. T...

 

1546 days

 Date: 08/26/15 02:20   in : Astronomy 

The Big Bang Theory It is always a mystery about how the universe began, whether if and when it will end. Astronomers construct hypotheses called cosmological models that try to find the answer. There are two types of models: Big Bang and Steady State. However, through many observational ...

 

1551 days

 Date: 08/20/15 16:27   in : Astronomy 

Twin Sisters Venus is known as Earth’s sister planet because they are similar in mass, sizes density, and volume. But have you ever wondered how they are different. Venus is actually very different from Earth in many ways. Venus is closer to the sun than any other planet except Mercu...

 

1559 days

 Date: 08/12/15 19:27   in : Astronomy 

Nebula A nebula is a combination of dust particles and gases in space that form a cloud. They are the gaseous and dusty material expelled by an old star just before death. (4) A far better name for these objects would be "ejection nebulae". The term nebula comes from the Latin word for ...

 

1572 days

 Date: 07/31/15 07:49   in : Astronomy 

Telescopes Reflecting Telescopes use a mirror to gather light and bring the image to the eyepiece. These telescopes are often referred to as "Newtonians" because they were first conceived of by Isaac Newton. Reflectors utilize a parabolic mirror that reflects the image to a focal point. S...

 

1588 days

 Date: 07/14/15 20:21   in : Astronomy 

Atmosphere There are many environmental problems that are currently plaguing the earth. Many of them are caused by humans and some just occur naturally. Environmental pollution isn’t just an issue that has just been noticed now. Investigators in England during 1661 noticed that emissions ...

 

1591 days

 Date: 07/11/15 20:55   in : Astronomy 

Little And Big Dipper The Big Dipper is one of the most distinctive asterisms in the sky, also known as the Ursa Major or the Great Bear. The Big Dipper is a group of seven bright stars, three that form a handle and four that form a bowl. Fugitive slaves before the Civil War knew it as "...

 

1598 days

 Date: 07/04/15 15:02   in : Astronomy 

All About Comets The picture of a comet is a spectacular object, with a brilliant head and a long tail, streaming across the heavens. Observations of the comet of 1577 by Tycho Brahe demonstrated that comets were more distant than the moon. Some comets are spectacular objects, but...

 

1598 days

 Date: 07/04/15 11:28   in : Astronomy 

Moon The Moon is the only natural satellite of Earth: orbit: 384,400 km from Earth diameter: 3476 km mass: 7.35e22 kg Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies. The Moon, of course, has been known since prehistoric times. It is ...

 

1603 days

 Date: 06/29/15 16:25   in : Astronomy 

UFO’s And Extraterrestrial Intelligent Life The question “Are We Alone in the Universe?” has been brought up and speculated on for thousands of years. My answer to the above question is I don’t know. I will not try to give you answers in this essay, because as of now nobody knows the...

 

1605 days

 Date: 06/27/15 14:39   in : Astronomy 

Saturn Is The Seconed Largest Planet In The Solar System Saturn is the second largest planet in the solar system. It is the sixth planet from the Sun. Saturn was one of the most beautiful sites know to the Ancients. All Gas Giant planets that we know of have rings, but the rings on Saturn...

 

1611 days

 Date: 06/21/15 18:39   in : Astronomy 

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1617 days

 Date: 06/15/15 18:16   in : Astronomy 

Tides Tides are the periodic rises and falls of large bodies of water on earth. These changes in water depth are caused by the gravitational pull of the moon and the sun, along with the depth of the water, and barometric pressure. The most important force on the tides is the moon. The gr...

 

1618 days

 Date: 06/15/15 06:14   in : Astronomy 

Stars & Constellations What is it that makes our universe work how was it formed and why is it here? Is it merely for our enjoyment and livelihood, or is there from of a large picture aspect of it all? It is hard to know why and how how our solar system came to be but there are several ...

 

1622 days

 Date: 06/10/15 20:04   in : Astronomy 

The Runaway Universe Donald Goldsmith graduated from Harvard College in 1963. He continued his education at UC Berkeley, where he earned a PhD in astronomy and where he later became a professor. Over the years, he has taught astronomy courses at many world-renowned institutions, includin...

 

1625 days

 Date: 06/07/15 15:44   in : Astronomy 

Planet Comparison- Uranus And Neptune Uranus was discovered in 1781 by Sir William Herschel. He at first wanted to name the planet Sidus Georgium which is latin for George’s star after the king of England. Another astronomer Johann Bode advised Herschel against it and suggested instea...

 

1626 days

 Date: 06/06/15 13:24   in : Astronomy 

Star Dust Have you ever wondered how many different objects and particles enter earth’s atmosphere everyday. The earth is growing fatter under continuous microscopic flurry of space specks. The earth gathers 100 tons of space dust everyday. These space particles come from all the over th...

 

1627 days

 Date: 06/06/15 07:44   in : Astronomy 

The Moon The Moon is the only natural satellite of Earth: orbit: 384,400 km from Earth diameter: 3476 km mass: 7.35e22 kg Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies. The Moon, of course, has been known since prehistoric times. It...