X-ray Dark Planet/comet
Main article: X-ray dark planetX-ray observations offer the possibility to detect (X-ray dark) planets as they eclipse part of the corona of their parent star while in transit. "Such methods are particularly promising for low-mass stars as a Jupiter-like planet could eclipse a rather significant coronal area."
As X-ray detectors have become more sensitive, they have observed that some planets and other normally X-ray non-luminescent celestial objects under certain conditions emit, fluoresce, or reflect X-rays.
Read more about this topic: X-ray Astronomy
Famous quotes containing the words dark, planet and/or comet:
“Half life is over now,
And I meet full face on dark mornings
The bestial visor, bent in
By the blows of what happened to happen.
What does it prove? Sod all.”
—Philip Larkin (1922–1986)
“Everywhere—all over Africa and South America ... you see these suburbs springing up. They represent the optimum of what people want. There’s a certain sort of logic leading towards these immaculate suburbs. And they’re terrifying, because they are the death of the soul.... This is the prison this planet is being turned into.”
—J.G. (James Graham)
“Ah, like a comet through flame she moves entranced
Wrapt in her music no bird song, no, nor bough
Breaking with honey buds, shall ever equal.”
—Stephen Spender (1909–1995)