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Category: Sci-Tech

Hawaii seeks to ban toxic chemical sunscreens to save the coral reefs from chemical decimation

Many snorkelers who are drawn to Hawaii’s coral reefs have noticed that they are not brimming with life the way they once did, and it looks like they only have themselves to blame. A lot of explanations have been put forth for coral die-offs, but one of the biggest culprits is the sunscreen that is worn by people who swim in the waters. In fact, a staggering 14,000 tons of sunscreen are washed off into our planet’s oceans each year.

Babies From Skin Cells, Engineered Embryos For Cloning Oneself, Designer Same-Sex Children And Other Unsettling Nephiliminoids On Near Horizon Are Upsetting Some Experts

Nearly 40 years after the world was jolted by the birth of the first test-tube baby, a new revolution in reproductive technology is on the horizon — and it promises to be far more controversial than in vitro fertilization ever was. Scientists will likely be able to create a baby from human skin cells that have been coaxed to grow into eggs and sperm and used to create embryos to implant in a womb. The process, in vitro gametogenesis, or I.V.G., so far has been used only in mice. But stem cell biologists say it is only a matter of time before it could be used in human reproduction — opening up mind-boggling possibilities. With I.V.G., two men could have a baby that was biologically related to both of them, by using skin cells from one to make an egg that would be fertilized by sperm from the other. Women with fertility problems could have eggs made from their skin cells, rather than go through the lengthy and expensive process of stimulating their ovaries to retrieve their eggs. “It gives me an unsettled feeling because we don’t know what this could lead to,” said Paul Knoepfler, a stem cell researcher at the University of California, Davis. “You can imagine one man providing both the eggs and the sperm, almost like cloning himself. You can imagine that eggs becoming so easily available would lead to designer babies.”

For The First Time, Physicists Have Observed a Giant Magnetic ‘Bridge’ Between Galaxies

Known as the Magellanic Bridge, the bridge is a huge stream of neutral gas that stretches some 75,000 light-years between our two neighbouring galaxies, the Large and Small Magellanic Clouds (LMC and SMC). Although researchers had predicted it was there, this is the first observation of its magnetic field, and it could help us understand how these vast bridges come to be.