THE ANDROMEDA GALAXY IN FAR-INFRARED AND X-RAYS
Explosive stars in its interior // cooler, dusty stars forming in its many rings.
The image is a combination of observations from the European Space Agency’s Herschel Space Observatory taken in far-infrared light (seen in orange hues), and the ESA’s XMM-Newton telescope captured in X-rays (seen in blues).
- Herschel provides a detailed look at the cool clouds of star birth that line the galaxy’s five concentric rings. Massive young stars are heating blankets of dust that surround them, causing them to glow in the longer-wavelength infrared light, known as far-infrared, that Herschel sees.
- In contrast, XMM-Newton is capturing what happens at the end of the lives of massive stars. It shows the high-energy X-rays that come from, among other objects, supernova explosions and massive dead stars rotating around companions. These X-ray sources are clustered in the center of the galaxy, where the most massive stars tend to form.
Credit: ESA/Herschel/PACS/SPIRE/J. Fritz, U. Gent; X-ray: ESA/XMM Newton/EPIC/W. Pietsch, MPE ||| Image and narrative via Wikimedia
"For as long as there been humans we have searched for our place in the cosmos. Where are we? Who are we? We find that we live on an insignificant planet of a hum-drum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people. This perspective is a courageous continuation of our penchant for constructing and testing mental models of the skies; the Sun as a red-hot stone, the stars as a celestial flame, the Galaxy as the backbone of night." – CARL SAGAN
(Photography credit: Michael Goh)
I want to text you. Just to remind you that I’m still here. But then I remember that you know I’m here. You just don’t care.”
— Midnight thoughts (I won’t do this again)
Rule 01: When you are having a down day, dress up like you are the Doctor.
There are lots of talented people on tumblr. I, for one, am great at pressing the reblog button.