In the natural world, many different animal species use bright colors and patterns to advertise the fact that they would make a horrible snack.
It may be too chilly for good bird-watching in Central Park, but just across the street the Museum offers prime indoor bird-spotting in its varied dioramas. Watch a video.
Was Napoleon Bonaparte poisoned? This question has plagued historians since the defeated French emperor’s death on May 5, 1821, on the island of St. Helena in the South Atlantic, where he lived in exile for nearly six years.
Did you know that the entire universe was once hotter than the surface of the Sun? What became of the light emitted by that hot universe? In a video, astrophysicist Mordecai-Mark Mac Low introduces viewers to the cosmic microwave background—energy left over from the Big Bang.