As thousands gather in Washington over the next week to the mark the 50th anniversary of the March on Washington, you may be moved to look for video of Martin Luther King Jr.'s "I Have a Dream Speech," which he delivered in front of the Lincoln Memorial during that march.
It might surprise you that it is actually quite hard to find — because while many copies have been uploaded to Internet video sites, many have also been taken down.
When you last visited your local science museum, what did you see? Those cavernous dark halls, the dinosaurs, a bone frozen into place. The dioramas of stuffed big-horn sheep in a painted habitat. We all know of those. At least that might be how you remember it. But museum directors today are reimagining that Victorian-era museum, reimagining it for the 21st century. They envision using everything from smartphone apps to walk-through labs and meet and greet with actual scientists.
Musical performances may not be a completely auditory experience, according to a study published in the Proceedings of the National Academy of Sciences. Study author Chia-Jung Tsay discusses how visual cues can influence our judgments about music and other social settings.
Imagine a robotic lab that can sample ocean organisms on its own and perform DNA analysis of what it finds. William Ussler, of the Monterey Bay Aquarium Research Institute, describes how a prototypical robotic explorer is helping study the life around undersea thermal vents.
The ailing Kepler planet-hunting telescope cannot be fixed, the victim of failed reaction wheels required to aim the instrument. However, researchers still have reams of data to sift through. William Borucki of NASA and Joshua Winn of MIT discuss the search for distant planets.