This article was published on the Scientific Daily on the 23rd of December. It was about the discovery of two brown dwarfs by scientists Alex Wolszczan, Evan Pugh, and Penn State.
Brown dwarfs are objects in space that sit between the lines of being a star and a planet. This object is dim and hard to distinguish from low mass stars at the early stages of the dwarf’s life. They are often called failed stars because they start their life the same way as regular stars. However, in some stage, they just didn’t have enough mass gathered to generate the fusion-powered energy of a star. Scientists are certain that brown dwarfs are the missing link between stars and planets but the formations of dwarfs are still a mystery.
Seeing the double brown dwarfs near a star is very rare. Seeing a double near a K- type is a first to the scientific world. This star is called BD +20 2457 and it is nearing the end of its life. Normally a brown dwarf would be created either from a star formation or a planet formation. Planets form when the star revolves and pulls in dust and gas from the nebula. As th...
When itBetelgeuse cannot fuse anymore anything over iron, the star will not have enough energy to make heat. Eventually, the core will collapse. When Betelgeuse collapses, it is so strong and powerful that it causes the outer layers to rebound. With the rebound it will have an explosion, which is called a Supernova (Type two). The explosion has so much energy and power that the temperature becomes really hot. The temperature is so hot that it can use the fusion process much heavier than iron. The elements that were given off from the explosion are sent throughout space and are now new nebula. When the Supernova is done, it has left behind a star called a Neutron star. They form when atoms of the core of a dead star are crushed together and the end result produces neutrons. The neutrons are with electrons that are degenerate on the surface. Many Neutron stars have magnetic fields and they give off strong waves of radiation from their poles. These types of Neutron Stars are known as Pulsars.
Trappist-1 is a white dwarf , having a mass equivalent to only 8% of the mass of our sun. A white dwarf surrounded by seven planets all rocky and of a size similar to the Earth. The discovery of such a system is a first for NASA, which used the Trappist telescope in Chile to study it and the Spitzer
The controversy of Pluto can be observed from two different perspectives, the scientific way and from the eyes
The American scientist John Wheeler coined the phrase “black hole” in 1969 to describe a massively compact star with such a strong gravitational field that light cannot escape. When a star’s central reserve of hydrogen is depleted, the star begins to die. Gravity causes the center to contract to higher and higher temperatures, while the outer regions swell up, and the star becomes a red giant. The star then evolves into a white dwarf, where most of its matter is compressed into a sphere roughly the size of Earth. Some stars continue to evolve, and their centers contract to even higher densities and temperatures until their nuclear reserves are exhausted and only their gravitational energy remain. The core then rushes inward while the mantle explodes outward, creating neutron stars in the form of rapidly rotating pulsars. Imploding stars overwhelmed by gravity form black holes, where the core hits infinite density and becomes a singularity (some estimate it at 10^94 times the density of water).
These cute looking lazy creatures have more reason to live then there taken for. You may ask “Why the panda bear should live?” Or……”What’s they’re purpose here on earth?” Well truth is the giant panda is actually critical to our environment; this is because of the role they play in the bamboo forests. They roam and spread seeds facilitating the growth of veggies that other vegetarian like animals eat. The giant panda bears aren’t the only ones living in that same forest either. In the Yangtze Basin where the giant pandas live, the same forest is the home to a stunning amount of other amazingly rare wildlife. This proves they have a very good reason for being here on earth, they not only provide for other vegetarian animals in the forest, but they also provide for humans.
NSF. "Astronomers Detect Three 'Super-Earths' in Nearby Star's Habitable Zone."Nsf.gov. National Science Foundation, 26 June 2013. Web. 7 Apr. 2014. .
All regular black holes are formed when a star collapses into an object that is so compacted nothing can escape the force of gravity. Stars that are about five times the size of the sun are only capable of being black holes. If the star does not have enough gravitational force acting upon it, the star will just cool down into a white dwarf. A star is a balance between two forces, the inward pressure of gravity and the outward pressure of radiation. Once a star has converted all its energy from its element stockpiles it reaches the element of iron. Iron atoms cannot create energy when fused together. The star stops emitting radiation which causes the inward pressure of gravity to overcome the now nonexistent outward pressure of radiation. The star implodes and a black hole is formed.
Every day we look into the night sky, wondering and dreaming what lies beyond our galaxy. Within our galaxy alone, there are millions upon millions of stars. This may be why it interests us to learn about all that we cannot see. Humans have known the existence of stars since they have had eyes, and see them as white glowing specks in the sky. The mystery lies beyond the white glowing specks we see but, in the things we cannot see in the night sky such as black holes.
A supernova is an explosion of a massive supergiant star. It may shine with a brightness of 10 billion suns! The total energy output may be 10^44 joules, as much as the total output of the sun during its 10 billion year lifetime. The likely scenario is fusion proceeds to build up a core of iron. The “iron group” of elements around mass number A=60 are the most tightly bound nuclei, so no more energy can be gotten from nuclear fusion. Supernovas are classified at Type one if their light curves exhibit sharp maxima and then die away gradually. The maxima may be about 10 billion solar luminosities. Type two supernovas have less sharp peaks at maxima and peak at about 1 billion solar luminosities. They die away more sharply than Type one. Type two supernovas are not observed to occur in elliptical galaxies, and are thought to occur in population one type stars in the spiral arms of galaxies. Type one supernovas occur typically occur in elliptical galaxies, so they are probably Population type two stars. With the observation of a number of supernovas in other galaxies a more refined classification of supernovas has been developed based on the observed spectra. Th...
A collision where one party collides with another and leaves the scene is considered to be illegal in the United States. If a white dwarf would collide with the sun this would be the exact case. It would take around an hour for the white dwarf to go completely through the sun and then after causing great destruction and changing the chemical and physical properties of the sun it would just continue on its path and leave behind massive destruction.
Years later the moon and the sun began to spin and spin really fast until they gained so much speed that they orbited out in tot the center of the galaxy and exploded making a giant sun.
Chandler, David L. "The New Search for Alien Intelligence." Astronomy Sept. 2013: n. pag. Student Research Center. Web. 9 Mar. 2014.
'A discovery so unexpected could only have singular circumstances, for it was not due to an astronomer and the marvelous telescope…was not the work of an optician; it is Mr. Herschel, a [German] musician, to whom we owe the knowledge of this seventh principal planet.' (Hunt, 35)
Ravi, Vikram, and Ryan Shannon. "When Galaxies Collide: The Growth of Supermassive Black Holes (Op-Ed)." LiveScience.com. Livescience, 18 Oct. 2013. Web. 30 Nov. 2013.