Auroras is a glittering act of colors formed due to the charged particles coming from the sun collaborating with our earth’s magnetic field at the high-latitude sky. These types of light are generally seen on various planets and moons of our solar system.
But now auroras are no more primitive to the planets and moons. European Space Agency comet chaser mission have disclosed an auroral light on the comet 67P/Churyumov-Gerasimenko (67P/C-G).
“The glow surrounding 67P/C-G is one of a kind,” says Marina Galand of Imperial College London, the UK, lead author of the new study. The researchers searched for various data from numerous instruments on Rosetta and bonded them together. After that, it was found that the glow was auroral which happens due to various processes some observed at Ganymede and Europa and rest at Earth and Mars.
In the solar wind, electrons were flooding out along with the charged particles from the sun combined with the gas in the comet’s coma breaking the water and other molecules and then the appearing atoms gave an extraordinary far-ultraviolet light.
Ultraviolet discharge recognized by Rosetta at comet 67P/C-G had been demonstrated before and were imagined to be ‘dayglow’ an action which takes place as solar light particles (photons) merging with cometary gas.
With the analysis of 67P/C-G scientists will be able to determine how particles in the solar wind advance with time. A thing that is essential to understand the space climate all over the solar system. With better data on how the radiation of the sun affects the space climate, it can help to safeguard satellites and spacecraft, and also the astronauts flying to the moon and mars.
“Rosetta is the gift that keeps on giving,” said Paul Feldman, an investigator on Alice at the Johns Hopkins University in Baltimore and a co-author of the paper. “The treasure trove of data it returned over its two-year visit to the comet has allowed us to rewrite the book on these most exotic inhabitants of our solar system – and by all accounts, there is much more to come.”