HUBBLE IMAGENS
heic1323 - Photo Release
RS Puppis puts on a spectacular light show
17 December 2013
The NASA/ESA Hubble Space Telescope has observed the variable star RS Puppis over a period of five weeks, showing the star growing brighter and dimmer as it pulsates. These pulsations have created a stunning example of a phenomenon known as a light echo, where light appears to reverberate through the murky environment around the star.
For most of its life, a star is pretty stable, slowly consuming the fuel at its core to keep it shining brightly.
However, once most of the hydrogen that stars...LEIA MAIS
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