February 20, 2020

Astro-Challenge: Hunting for Van Maanenís Star.

A Earth-sized star. (Credit: NASA/RXTE).

Itís sobering to ponder the ultimate fate of our Sun. We orbit a middle-aged main sequence star, one that will continue to happily fuse hydrogen into helium for our energy consuming convenience for the next few billion years. We see the ultimate fate of our Sun, however, when we look out at planetary nebulae and burned out cinders known as white dwarfs. [Read more...]