Dark Energy That Will Disappear
Since the late 20th century, astronomers have known that the recession of galaxies is accelerating, as if pushed by an invisible tailwind.
Oblique Drop Impact: How Direction Decides the Fate of a Splash
A raindrop slides on the wind and hits the ocean not straight down but at an angle. At that moment, its energy splits into two channels: one pushes the water forward along the flight path, the other presses it downward into the depths. Which channel proves stronger determines what happens at the surface: a quiet submergence, a fan of spray to one side, or a crown that shatters in all directions.