A water-rich polka dot pattern takes over the traditional rectangular patchwork of fields in a series of 40 years of Landsat images. In the dry Texas panhandle near the town of Dalhart, this transformation is due to center-pivot irrigation, a farming method that improves water distribution to fields. It was invented by farmer Frank Zybach in 1949.
Wearable electronics:Transparent, lightweight, flexible conductor could revolutionize electronics industry
The most transparent, lightweight and flexible material ever for conducting electricity has just been invented. Called GraphExeter, the material could revolutionize the creation of wearable electronic devices, such as clothing containing computers, phones and MP3 players.
Aging may seem unavoidable, but that’s not necessarily so when it comes to the brain. So say researchers based on counterintuitive evidence that it is what you do in old age that matters when it comes to maintaining a youthful brain rather than what you did earlier in life.
The NASA/ESA Hubble Space Telescope has been at the cutting edge of research into what happens to stars like our sun at the ends of their lives. One stage that stars pass through as they run out of nuclear fuel is called the preplanetary or protoplanetary nebula stage. A new Hubble image of the Egg Nebula shows one of the best views to date of this brief but dramatic phase in a star’s life.
Data from NASA’s Cassini mission reveal Saturn’s moon Phoebe has more planet-like qualities than previously thought. Scientists had their first close-up look at Phoebe when Cassini began exploring the Saturn system in 2004. Using data from multiple spacecraft instruments and a computer model of the moon’s chemistry, geophysics and geology, scientists found Phoebe was a so-called planetesimal, or remnant planetary building block.