Elon Musk loves the letter “X.” He named his first company X.com. He named one of his kids X. He renamed Twitter X. Kill the birds! But why? “X” is mathematical and “X” is scientific. Beginning in the ...

X-rays during pregnancy have long been considered unsafe. The radiation could potentially harm your baby, even causing birth defects. Sometimes, however, getting an x-ray while you are pregnant may be ...

A powerful burst of X-rays from a nuclear explosion could be used to stop Armageddon just in the nick of time, a new experiment suggests. When you purchase through links on our site, we may earn an ...