Discovered under the North Sea off the coast of the UK during an analysis of seismic data collected during oil exploration, the Silverpit crater may have been formed as much as 74 million years ago, perhaps when a large projectile impacted Earth's surface. Though the crater bears features similar to those of the impact crater Valhalla found on Jupiter's moon Callisto, many scientists question whether such a collision created Silverpit. What other theories about its origin have been proposed?
Back in the day
Towards the end of the 14th century, the Teutonic Order, a German military religious order founded during the Third Crusade, sought to expand its influence over Lithuania and Poland. Though its mission was to spread Christianity throughout the world, it invaded the already Christian nations and was defeated at the Battle of Grunwald. Afterward, the Order's strength waned, and today it exists only as a clerical organization. What role did the Knights play before becoming a military order?
Born on a day like today
Rembrandt is considered one of the greatest painters in European history and the most important master of the Dutch School. Known for his portraits, landscapes, and narrative paintings, Rembrandt was often praised for his masterful use of light and shadow. A fecund artist, he produced hundreds of paintings, about 300 etchings, and nearly 2,000 drawings. How many self-portraits did Rembrandt produce?