New Department of Energy efficiency rules spell the end of the line for incandescent lightbulbs.

Anthony Fauci, chief medical adviser to President Joe Biden, declares the COVID-19 pandemic to be over after it kills nearly a million Americans. 

The Tunnel Fire in northern Arizona burns Sunset Crater Volcano National Monument “in its entirety.” 

India and Pakistan experience a “year without a spring” because of a heat wave that sends temperatures above 105°F.  

Great tits now hatch a month earlier than they did 75 years ago.

Shareholders at Citigroup, Wells Fargo, and Bank of America defeat climate resolutions calling for them to stop financing fossil fuel projects. 

ExxonMobil will prevent the Pride flag from being flown at its Houston, Texas, headquarters during Pride Month in June. 

Russia flexes its power as a petrostate by cutting off gas shipments to Poland and Bulgaria.

The “odd rumbling, snoring-like noises” that a family in South Lake Tahoe, California, had ignored all winter turns out to be five bears hibernating under their house. 

NASA records the two largest marsquakes ever: magnitude 4.1 and 4.2. 

All five of the nucleobases that store information in RNA and DNA—adenine, guanine, cytosine, thymine, and uracil—have now been found in meteorites, lending credence to the notion that the ingredients of life on Earth may have come from space.