Only 17% of the matter in the universe is detectable "baryonic matter," the atoms and ions that make up stars, planets, dust, and gas.
Quantum theory attributes wavelike character to matter, a behaviour that is detectable only when matter is examined on the scale of atoms and electrons.
One of the more encouraging aspects of the research, Dr. Ostriker said, is that warm dark matter should be more readily detectable than cold matter, which has so far defied identification.
Science being what it is, researchers hope to create detectable bits of matter and explore reality not by actually putting their palms to a lamp but by smashing together other particles at a point about 30 feet below where Mr. Bachy is standing.
Positive-strand HCV RNA was detectable in white matter, cortex and basal ganglia from the HIV/HCV co-infected patient at 102 viral copies/µg RNA, which were 10-fold lower than viral copy numbers in the matched spleen (Figure 1A).
The red part and the blue part of the picture thus represent two very different kinds of matter: regular matter seen through its emission of detectable x-rays, and dark matter, seen only through the fact that it acts gravitationally on light from a source that is behind this cluster.
Prepartum fat supplementation had no detectable effects on dry matter intake, body weight, or body condition score.
The results indicate that different methods of processing barley had no detectable effect on dry matter intake, average daily gain, and feed efficiency and that skeletal growth, health, and rumen pH were not affected by dietary treatments.
Thanks to the ability of NASA's Kepler Space Telescope to precisely measure starlight over long periods of time, astronomers now have a pretty good idea what these flash-in-the-pan supernovas are: exploding stars probably too dim to be detectable until the stellar matter ejected during the explosion collides with a shell of material puffed off years earlier by the star.
As such, dark matter is detectable only via the gravitational pull it generates.
In sham-control spinal grey matter, no detectable PAI-1 expression was observed in spinal microvessels.
