Defining a neutron star
By: Jose Juan Gutierrez
A neutron star is the leftover of the gravitational collapse of a massive star. The collapse of this type of stars causes matter to acquire the density of the atomic nucleus. The density of a neutron star is so compacted that several thousand planets the...
How a pulsar is created
By: Jose Juan Gutierrez
A pulsar is a rapidly rotating neutron star whose magnetic fields emit charged particles of radiating energy. A pulsar possesses jets of particles streaming from their magnetic poles at the speed of light. These jets produce very intense beams of light. The magnetic and rotational...
The role of interstellar dust in the formation of stars
By: Jose Juan Gutierrez
The dark places between the stars or interstellar space are not empty spaces but filled with interstellar medium which is composed of gas and dust. Gas and dust are the raw materials from which stars are formed. The most abundant element in the interstellar medium...
Curiosity finds evidence water once existed on Mars
By: Kenneth Andrews
NASA's Curiosity Rover, the $2.5bn robot which was launched towards Mars in November 2011, has found clear evidence that at one point there was liquid running water on the surface of Mars. This discovery is a significant step towards ascertaining whether the Red Planet...
By: Micah Schembri
Many people share the fear that in years to come an Asteroid will collide with the planet and either end life as known or kill countless billions. The real concern however should be, if an asteroid was to have a trajectory leading to that of...
The formation of stars
By: Jose Juan Gutierrez
Star formation takes place within high molecular density clouds in the interstellar medium. The interstellar medium consists of particles of gas and dust of which 90% is hydrogen, 9 % helium and the remaining is traces of other elements. A molecular cloud will remain in...
How a neutron star is created
By: Jose Juan Gutierrez
A neutron star is created when a massive star collapses under its own gravity during the explosion of a supernova. A neutron star is the remnant of a high-mass star of about 5-10 solar masses, and is composed of neutrons. The size of a neutron...
Could anything be done to save Planet Earth if a large asteroid was heading this way?
By: Patrick Sills
What would happen if a significantly large asteroid was discovered to be on a collision course with the earth? If nothing could be done to stop it, the results would be devastating. In days of old, the disappearance of the dinosaurs was a mystery, but...
Why a new comet might be brighter than the full Moon
By: Terrence Aym
Mark your calendars for late 2013, that's when possibly one of the brightest comets in history will appear in the sky. Astronomers are predicting the new comet may be so brilliant it could shine many times brighter than the full Moon. If it does become...
Overview of the sizes and frequencies of meteorites hitting the earth's atmosphere
By: David Jefferson
The rate of meteors by weight, coming in contact with with the Earth's atmosphere is termed meteor flux. The smallest particles, called micrometeorites, are a few microns in diameter and don't tend to burn or melt but slow and settle to the Earth's surface as...

 

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