Astronomy
A star is formed when a large amount of gas (mostly hydrogen) starts to collapse in on itself due to its high gravitational attraction. As it contracts the atoms of the gas collide with each other more and more frequently and at greater and greater speeds--the gas heats up. Eventually, the gas will be so hot that when the hydrogen atoms collide they no longer bounce off each other, but instead coalesce to form helium. The heat thus released in this reaction, which is like a controlled hydrogen bomb explosion is what makes the star shine.
- Ngc 6280 Nebula
NGC 6820 is an emission nebula that surrounds open cluster NGC 6823 in the constellation Vulpecula. Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation...
- White Dwarfs As Pulsars
A little more than two years ago, in early 2008, there was a shocking discovery from the Suzaku team. Suzaku is an orbiting X-ray observatory, operated jointly by JAXA and NASA. It had detected a white dwarf star, AE Aquarii, emit high-energy X-ray pulses....
- New 3-d Map Reveals Bubbly Interior Of Supernova. .
A new three dimensional model of the Cassiopeia A supernova reveals it's bubbly interior. One of the study's authors Professor Robert Fesen of Dartmouth College in New Hampshire says,"This is the first time we've actually seen such...
- What Is A Nova?
A Nova is not a new star that appears all of a sudden in the sky, as its name suggests. It's actually a sudden brightness that appears on the surface of an existing white dwarf star in a binary system with another star. The White dwarf star's...
- Theory Of Relativity As Basis For Black Hole.
Einstein's Theory of relativity is definitely one of those few theories in the history of physics, that changed the way we see things. It revolutionized the cosmology in such a way that many physicists who are struggling in their respective lines...
Astronomy
What makes a star shine ?
A star is formed when a large amount of gas (mostly hydrogen) starts to collapse in on itself due to its high gravitational attraction. As it contracts the atoms of the gas collide with each other more and more frequently and at greater and greater speeds--the gas heats up. Eventually, the gas will be so hot that when the hydrogen atoms collide they no longer bounce off each other, but instead coalesce to form helium. The heat thus released in this reaction, which is like a controlled hydrogen bomb explosion is what makes the star shine.
- Ngc 6280 Nebula
NGC 6820 is an emission nebula that surrounds open cluster NGC 6823 in the constellation Vulpecula. Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation...
- White Dwarfs As Pulsars
A little more than two years ago, in early 2008, there was a shocking discovery from the Suzaku team. Suzaku is an orbiting X-ray observatory, operated jointly by JAXA and NASA. It had detected a white dwarf star, AE Aquarii, emit high-energy X-ray pulses....
- New 3-d Map Reveals Bubbly Interior Of Supernova. .
A new three dimensional model of the Cassiopeia A supernova reveals it's bubbly interior. One of the study's authors Professor Robert Fesen of Dartmouth College in New Hampshire says,"This is the first time we've actually seen such...
- What Is A Nova?
A Nova is not a new star that appears all of a sudden in the sky, as its name suggests. It's actually a sudden brightness that appears on the surface of an existing white dwarf star in a binary system with another star. The White dwarf star's...
- Theory Of Relativity As Basis For Black Hole.
Einstein's Theory of relativity is definitely one of those few theories in the history of physics, that changed the way we see things. It revolutionized the cosmology in such a way that many physicists who are struggling in their respective lines...