These observances are a visible reminder of collective remembrance, sacrifice and gratitude. Lowering the U.S. or state flags to half-staff is a longstanding tradition that signifies public mourning ...

The Stars and Stripes will fly at half-staff across two states in America today after a nationwide alert over the weekend to honor those killed in the Pearl Harbor bombings. Today, the state flags of ...

Artificial photosynthesis — splitting water with light — is an attractive way to make hydrogen, but what happens to the oxygen? A catalyst that aids in the efficient production of gaseous oxygen ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Almost 60 major low-carbon hydrogen projects including by oil groups BP and ExxonMobil have been cancelled or ...

Nvidia stock might not get the boost from a U.S. plan to permit export of artificial-intelligence chips to China investors are hoping it will. President Donald Trump said Monday he would allow ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Water electrolysis powered by renewable energy is a promising technology to produce green hydrogen, but widespread adoption is hindered by the lack of stable, low-cost catalysts coping with the ...