Scientists have discovered that a weak spot in Earth’s magnetic field is expanding, raising concerns about potential impacts on satellites and space technology.

“In short, no, fridge magnets do not affect the performance or energy efficiency of your refrigerator," says Glynn. "The ...

However, each kilogram of hydrogen produces only around 0.3 watts of power because the “cross section of reaction” (how likely the hydrogen atoms are to fuse) is tiny. The Sun, however, is enormous ...