As the 3-km wide comet is moving closer to the sun, the heat is causing the nucleus to expel gas and dust. Last July the Rosetta spacecraft arrived and is now orbiting the Sun with the giant iceberg. The Rosetta spacecraft has indicated that the water coming from the comet is unlike the water on Earth, which means water could not have originated from ancient collisions with comets like 67P. A magnetic field has not been detected around the comet, which indicates that magnetism could have been unimportant to the evolution of the Solar System at first.
No comments:
Post a Comment