Science Journalism is neither science nor journalism. (sigh?) Hermaphrodites are neither men nor women. ( and while on that they could not be sexists by design right? )
Comet ISON (image below) seen recently, falling in deep space towards sun and eventually completely annihilating itself from observation. Its a comet that was a deep-space-ice-berg melting off and losing its trajectory from the gravity and heat of sun. (are comets as old as we begin observing them or a billion years old from their genesis in the solar system?)
1. It was barely a year old.
2. Comets are balls of dust and ice from the formation of the solar system billions of years ago.
Ison has come from the Oort cloud, a belt of comets on the very edge of the Solar System, where it has been for the last 4.6 billion years. The comet is a ‘sun-grazer’, passing so close to the Sun that it heats to over 2,760 degrees centigrade (5000 degrees Fahrenheit).
It passes so close to the star -travelling at 234 miles a second – there is a risk the ball of dust and ice could break up.