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:
“The sea
takes on that desperate tone
of dark that wives put on
when all their love is done.”
—Hilda Doolittle (1886–1961)
“Thus will the fondest dream of Phallic science be realized: a pristine new planet populated entirely by little boy clones of great scientific entrepeneurs ... free to smash atoms, accelerate particles, or, if they are so moved, build pyramids—without any social relevance or human responsibility at all.”
—Barbara Ehrenreich (b. 1941)
“By being seldom seen, I could not stir
But like a comet I was wondered at.”
—William Shakespeare (1564–1616)