An asteroid, also known as the Chicxulub Impactor, hit Earth some 66 million years ago, causing a crater 180 km wide. The impact of the asteroid heated organic matter in rocks and ejected it into the atmosphere, forming soot in the stratosphere. Soot is a strong, light-absorbing aerosol that caused global climate changes that triggered […]
Days and months before carrying out the worst mass shooting in recent U.S. history, Stephen Paddock rented hotel rooms overlooking other music festivals in Las Vegas as well as in Chicago, law enforcement authorities said. Media reports citing law enforcement officials say Paddock reserved two rooms in Chicago overlooking the Lollapalooza festival, which draws hundreds […]
LAS VEGAS — Police in Las Vegas, Nevada say a man opened fire on a country music concert late Sunday, killing at least 58 people and wounding more than 515 others, in the deadliest mass shooting in modern U.S. history. President Donald Trump called it an “act of pure evil.” Las Vegas Metropolitan Police identified the […]
Scientists at Princeton University and the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have developed a rigorous new method for modeling the accretion disk that feeds the supermassive black hole at the center of our Milky Way galaxy. The paper, published online in December in the journal Physical Review Letters, provides […]