The project rising in Mountain View is Google’s first built-from-scratch corporate campus. New aerial video shows how construction is coming along, a year-and-a-half after Google broke ground on the futuristic, canopied structures.

Magnetic reconnection takes place when the magnetic field lines embedded in a plasma—the hot, charged gas that makes up 99 percent of the visible universe—converge, break apart and explosively reconnect. This process takes place in thin sheets in which electric current is strongly concentrated.

According to conventional theory, these sheets can be highly elongated and severely constrain the velocity of the magnetic field lines that join and split apart, making fast reconnection impossible. However, observation shows that rapid reconnection does exist, directly contradicting theoretical predictions.

How Your Eyes Work

SAN JUAN, Puerto Rico (AP) — U.S. scientists have wrapped up a 22-day mission exploring waters around Puerto Rico and the U.S. Virgin Islands with the deepest dives ever recorded in the region.

They found a rare shark embryo, 2-meter (7 feet) high corals and sponges with sharp edges, among hundreds of other things.

Daniel Wagner was the expedition coordinator with the U.S. National Oceanic and Atmospheric Administration. He told The Associated Press on Wednesday that scientists collected 89 samples overall and will now start to analyze them. He said scientists believe they may have found several new species, although it will take years to confirm.