T cells are immune cells important for the defense against viruses. The ongoing exposure to cytomegalovirus impairs their function. In the picture: two T cells (red) interact with a dendritic cell, another type of immune cell.
A cup of He2 will spontaneously flow up and out of a container, as if it just decided to leave. It also seeps right through otherwise solid materials because its complete lack of friction allows it to flow through otherwise invisible holes that would not allow regular helium (or water for that matter) to flow through. He2 did not wind up at number 1 just because of its ability to act like it has a mind of its own, though, it is also the most efficient thermal conductor on earth; several…
This region is in the Large Magellanic Cloud is a firestorm of raw stellar creation, perhaps triggered by a nearby supernova explosion. It lies about 170,000 light-years away near the Tarantula nebula, one of the most active star-forming regions in our Local Group of galaxies.
A dark molecular cloud. Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. The eerily dark surroundings help make the interiors of molecular clouds some of the coldest and most isolated places in the Universe
Acoustic Levitation - Liquid Droplets Floating On Sound Waves In Midair - These drops of solution remain suspended for a long period of time, due to the vibrational force of sound waves that keep them stationary in an air column.