Last week, scientists presented an image of a supermassive black hole burping—twice. The behemoth had guzzled on gas before belching out a cloud of high-energy particles and settling in for a few ...

Berkeley — Using a state-of-the-art computer model of the lunar interior, geophysicists at the University of California, Berkeley, have shown that a mighty burp early in the moon’s history could ...

MENTION the phrases “greenhouse gases” and “global warming” in the same breath and most people will think of the carbon dioxide produced by burning fossil fuels such as coal and oil. But CO 2 is not ...