Eta Carinae

9 Aug 2018

Sent in by William - bizarre rogue planet discovered wandering in our galaxy - see https://wattsupwiththat.com/2018/08/04/bizarre-rogue-planet-discovered-w... ... a rogue planet without a star roaming the Milky Way just 20 light years away. A study published in the Astrophysical Journal claims it has an incredibly powerful magnetic field 4 million times more powerful than the magnetic field of the Earth. Further, it is able to generate powerful auroras - without the necessity of a sun to send forth plasma plumes.

At https://phys.org/print452411380.html ... astronomers taken aback by stellar burst from Eta Carinae. In the 1800s the star became the second most brilliant star in the night sky - suggesting an outburst event that expelled a lot of material and forming a bright glowing gas cloud. It has since faded in brightness, we are assured, yet is still one of the brightest stars in our galaxy. A supernova that was not - as the star still shines.

The same story is updated at https://phys.org/print452436486.html ... as the star that refused to die. Eta Carinae confounds astronomers as it was supposed to have been subject to a supernova explosion - and oblivion (but the star lives on).

At https://phys.org/print452442698.html ... meteors strike the Moon, and at https://phys.org/print452151896.html ... blue crystals in meteorites known as hibonite - containing helium and neon (the building blocks of the Sun).