Here's a myth many men are happy has been debunked - contrary to popular thinking about the need for hours of sexual activity, a survey of U.S. and Canadian sex therapists says satisfactory sexual intercourse for couples lasts from 3 to 13 minutes.

Penn State Erie researchers Eric Corty and Jenay Guardiani conducted a survey of 50 full members of the Society for Sex Therapy and Research, which include psychologists, physicians, social workers, marriage/family therapists and nurses who have collectively seen thousands of patients over several decades.

Thirty-four, or 68 percent, of the group responded and rated a range of time amounts for sexual intercourse, from penetration of the vagina by the penis until ejaculation, that they considered adequate, desirable, too short and too long.

Common sense says that we are happier when we get more money to spend on ourselves. At least, that’s what passes for commonsense in modern capitalistic societies, from the United States to China.  Indeed, when Elizabeth Dunn and colleagues at the University of British Columbia and at Harvard Business School asked a bunch of their students (the usual subjects in social science studies), that’s exactly what they found: students thought they would be happier getting $20 than $5, and that they would be happier spending the money on themselves than on others.

Turns out, the students were spectacularly wrong.

Research over the past several years has steadily contradicted the capitalistic assumption about human nature. For instance, it is well known that there is only a weak correlation between income level and self-reported happiness across the globe, with the relationship plateauing (meaning that additional money does not increase happiness) at surprisingly low levels of income. And yet, people keep playing the lottery, or its white collar equivalent, the stock market. Why?

Less than three months after forecasters announced the beginning of a new solar cycle (cycle 24), that has been changed. Solar Cycle 23 is still kicking.

Last week, three sunspots appeared and their magnetic polarity says they are all old cycle spots. ESA Solar and Heliospheric Observatory (SOHO) Project Scientist Bernhard Fleck says, “If cycle 24 had already begun, the magnetic polarity of the spots would be reversed.”

Two solar cycles? At the same time?

It sounds strange but it is normal. Around the time of solar minimum - which is now - old-cycle spots and new-cycle spots frequently intermingle. Eventually Cycle 23 will fade to zero, giving way in full to Solar Cycle 24, but not yet.

Plants, crops and trees naturally absorb atmospheric carbon dioxide (CO2) during photosynthesis and then pump surplus carbon through their roots into the earth around them. In most soils, this carbon can escape back to the atmosphere or enters groundwater.

Knowing this, a team from Newcastle University aims to design soils that can remove carbon from the atmosphere, permanently and cost-effectively using soils containing calcium-bearing silicates.

Calcium silicates are minerals that occur naturally in many different rocks and also in artificial materials such as concrete.

Astronomers have spied a faraway star system that is so unusual, it was one of a kind - and then its discovery helped them pinpoint a second one much closer to home.

They discovered the first star system 13 million light years away, tucked inside Holmberg IX, a small galaxy that is orbiting the larger galaxy M81. They studied it between January and October 2007 with the Large Binocular Telescope (LBT) on Mt. Graham in Arizona.

The star system is unusual, because it’s what the astronomers have called a “yellow supergiant eclipsing binary” -- it contains two very bright, massive yellow stars that are very closely orbiting each other. In fact, the stars are so close together that a large amount of stellar material is shared between them, so that the shape of the system resembles a peanut.

UC Irvine scientists have discovered a cluster of galaxies in a very early stage of formation that is 11.4 billion light years from Earth – the farthest of its kind ever to be detected. These galaxies are so distant that the universe was in its infancy when their light was emitted.

The galaxy proto-cluster, named LBG-2377, is giving scientists an unprecedented look at galaxy formation and how the universe has evolved. Before this discovery, the farthest known event like this was approximately 9 billion light years away.

“When you observe objects this far away, you are actually seeing the universe as it was a very long time ago,” said Jeff Cooke, a McCue Postdoctoral Fellow in physics and astronomy at UCI and lead author of this study. “It is as if a timeline is just sitting out there in front of you. These galaxies represent what the universe looked like well before the Earth existed.”

The Netherlands Organization for Scientific Research has a couple of interesting things in the works, the first being next generation media storage. Dutch researcher Alexander le Fèbre has demonstrated that a field-emission current signal can be used to arrange the position of thousands of nanometre-sharp needles. These probes can be applied to write and read in new storage media with an extremely high density, using bits on a nanometre scale.

The development of the hard disk is reaching its technical limits because the entire disk is served by just a single head so the capacity of the disk and the reading and writing speed cannot expand much more in the future. Research into a memory based on probes from the University of Twente’s MESA+ research institute means able to control the position of each separate probe - essential for realizing a system with extremely high densities.

NGC 2397, pictured in this image from Hubble, is a classic spiral galaxy with long prominent dust lanes along the edges of its arms, seen as dark patches and streaks silhouetted against the starlight. Hubble’s exquisite resolution allows the study of individual stars in nearby galaxies.

Located nearly 60 million light-years away from Earth, the galaxy NGC 2397 is typical of most spirals, with mostly older, yellow and red stars in its central portion, while star formation continues in the outer, bluer spiral arms. The brightest of these young, blue stars can be seen individually in this high resolution view from the Hubble’s Advanced Camera for Surveys (ACS).

New Jersey Institute of Technolgy math professor Bruce Bukiet is once again opining on outcomes for this season’s Major League Baseball teams. His picks are based on a mathematical model he developed in 2000.

Bukiet’s main areas of research have involved mathematical modeling of physical phenomena, including detonation waves, healing of wounds, and dynamics of human balance. He has also applied mathematical modeling to sports and gambling, in particular for understanding baseball and cricket. Bukiet is an avid Mets fan but no one should hold that against him.

In Screw 'Sustainability' - And I Am Here To Tell You Why we discussed the fact that Mother Nature is a bloody bitch. She is the mother of catastrophe. She has nurtured brilliant innovations like cells and DNA but she has also given us 142 mass extinctions, 80 glaciations in the last two million years, a planet that may have once been a frozen iceball, and a klatch of global warmings in which the temperature has soared by 18 degrees in ten years or less.

Mother Nature has sunken the pleasant habitat of land creatures to the bottom of swamps and has lifted the havens of sea creatures --ocean bottoms -- to the mountain tops. She has very seldom given us a Garden of Eden, a green and sunny utopia in which she and we live together in harmony and peace.

Nature tosses us challenges and dares us to survive. More properly, she challenges us to thrive.

What’s more, evolution is all about breaking Mother Nature’s rules — defying gravity when a lizard stands, denying buoyancy when a fish controls its depth in the sea, and saying “no” to gravity when a bird has the audacity to fly. That audacity is Mother Nature’s way of feeling out new paths of growth and radical new possibilities. How do we know? Birds have been paid off big time for their insolence. There are four times as many species of birds as there are of us land-lubbing mammals. Each species represents another victory over nature, another corner of nature’s maze turned into a new niche. Each triumph is another of nature’s own victories in the breakthrough biz.

That's why talk about 'sustainability' today is riddled with problems — and with the seeds of self-defeat. The lowest periods in recorded human history have come when society tried to maintain a status quo.