Researchers have shown, for the first time, that transmission of ultrastable optical signals from optical clocks across tens ...

Breakthroughs in pure mathematics can take decades. A new Defense Department initiative aims to speed things up using ...

Researchers used powerful XFELs to trigger strong inner-shell lasing, producing attosecond hard X-ray pulses. Filamentation ...

The Iranian capital on Wednesday after an Israeli strike. LIVE Trump Is Cryptic on U.S. Plans as Iranian Leader Is Defiant Despite danger from Iran’s deadly missile fire, Israeli morale appears ...