Some advice my dad gave me: "If your wife says she never dreams about sex with another man, she's lying. If she says she never dreams about sex with another woman, she's lying then too."

He may have been on to something. It turns out everyone, men and women alike, dream about sex.

In a detailed study that served to investigate the actual nature and content of sexual dreams across a large sample of dream reports from men and women, approximately eight percent of everyday dream reports from both genders contain some form of sexual-related activity.

Electrically charged gas in the magnetosphere of Saturn suggests volcanic activity on two of its moons. The direction of the ejected electrons points back towards Tethys and Dione. Previously it had been thought only only Enceladus was an active world.

"Innovative" science classes - new ways of teaching that are interactive, non-boring and therefore in defiance of every method that made America the home of great scientists for 150 years, are all the rage. The goal is to get more women in science, more minorities in science, more everyone in science.

It may not be working, and it may even make things worse, says a study the University of Colorado at Boulder. The researchers looked at interactive teaching methods, which can include online homework systems, help-room sessions, student discussions, and other methods that were not part of traditional science classes in the US.

The long supposed connection between mind and music has been further demonstrated by an international collaboration of physicists led by Simone Bianco and Paolo Grigolini at the Center for Nonlinear Science at the University of North Texas. A statistical analysis reveals a remarkable similarity between the distributions produced by music compositions and brain activity.

The consumption of sweetened soft drinks by children has more than doubled between 1965 and 1996 but few studies have been able to investigate the link between diet and the body’s energy balance control systems in early life. Now scientists at Aberdeen’s Rowett Research Institute have been able to model how the young body responds to overeating.

Biologists at the University of California, Riverside have identified the genes, and determined the DNA sequences, for two key proteins in the "dragline silk" of the black widow spider - an advance that may lead to a variety of new materials for industrial, medical and military uses.

Researchers at the University of Pennsylvania have created the first three-dimensional optical images of human breast cancer in patients based on tissue fluorescence.

Fluorescence diffuse optical tomography, or FDOT, relies on the presence of fluorophore molecules in tissue that re-radiate fluorescent light after illumination by excitation light of a different color.

The reconstructed images demonstrated significant tumor contrast compared to typical endogenous optical contrast in breast. Tumor-to-normal tissue contrast based on FDOT with the fluorophore Indocyanine Green, or ICG, was two-to-four-fold higher than contrast based on endogenous contrasts such as hemoglobin and scattering parameters obtained with traditional diffuse optical tomography, or DOT.

Ultrafast intramolecular electronic charge separation during photo-chemical reactions cause up to tenthousand surrounding molecules to perform aligning pirouettes. Researchers observed for the first time such light induced reorientations in an organic molecular crystal.

In their study they initiated a separation of positive and negative electronic charge in a small number of particular molecules with extremely short light pulses. In turn the surrounding molecules responded by aligning their respective dipole axes along the photoinduced electric fields. The researchers observed this fundamental process for the first time by means of femtosecond x-ray diffraction with high spatial precision and in real time.

Physicists of the DZero experiment at the Department of Energy's Fermi National Accelerator Laboratory have discovered a new heavy particle, the Î_b(pronounced "zigh sub b") baryon, with a mass of 5.774±0.019 GeV/c², approximately six times the proton mass.

The newly discovered electrically charged Î_b baryon, also known as the "cascade b," is made of a down, a strange and a bottom quark. It is the first observed baryon formed of quarks from all three families of matter.

A protein found primarily in the lens of the eye could be the critical "tipping point" in the spiral of inflammation and damage that occurs in multiple sclerosis, researchers at the Stanford University School of Medicine report.

This protein - alphaB-crystallin - is not normally found in the brain, but develops in response to the injuries inflicted on nerve cells by multiple sclerosis. The nerve-cell injuries can cause people to suffer loss of motor control and even paralysis.