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Keyword: detecting

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  • Revealed: the truth at the bottom of a bourbon shot

    03/26/2020 10:34:38 PM PDT · by LibWhacker · 51 replies
    Cosmos Magazine ^ | 3/27/20 | Barry Kelly
    Revealed: the truth at the bottom of a bourbon shot Scientists discover that spilt Jim Beam has forensic value. Share Tweet A drop of American whiskey evaporated to form a distinctive web-like pattern of solutes. Adapted from ACS Nano 2020 By Barry KeilyThe mark of a particular bourbon, it turns out, is not its taste, nor its price-point, nor even the clever design on its label.No. Scientists have now demonstrated that what truly distinguishes a drop of Bulleit from a drop of Knob Creek, or a snifter of Jimmy B from a slurp of Wild T is the mark it...
  • Ask Ethan: Would An Alien Civilization Classify Earth As An 'Interesting' Planet?

    10/21/2019 4:44:39 PM PDT · by LibWhacker · 44 replies
    Forbes ^ | 10/19/19 | Ethan Siegel
    All across the Universe, trillions of galaxies can be seen, with each one typically containing billions and billions of stars. Here on Earth, life not only arose, thrived, and became complex and differentiated, but intelligent, technologically advanced, and even spacefaring, to a degree. But these last advances — taking us into the space and information ages — are extremely recent, and space is enormous. If an alien civilization saw us, would we even appear interesting from their perspective? Tayte Taliaferro wants to know, asking: "I was thinking about the projection of light through space. My curtain was open and I...
  • The Alien Observatory --"We May Soon Discover Worlds That Host Lifeforms with Strange...

    04/02/2018 6:23:28 PM PDT · by LibWhacker · 46 replies
    In 2016, NASA sequenced DNA in space for the first time, but alien life, we may soon discover, may be vastly different on other planets and moons, particularly as we expand our efforts to explore ocean worlds with our solar system and beyond. “Most strategies for life detection rely upon finding features known to be associated with Earth's life, such as particular classes of molecules,” the researchers wrote. DNA and RNA are the building blocks of life on Earth, but the molecules of life might differ substantially on another planet. A new paper by scientists at Georgetown University, published online...
  • Detecting Alien Vegetation

    01/21/2009 11:05:44 PM PST · by LibWhacker · 11 replies · 381+ views
    Detecting Alien Vegetation Could we find evidence of vegetation on distant exoplanets? The answer may be yes, according to recent work by Luc Arnold (Observatoire de Haute Provence) and team. If green vegetation on another planet is anything like what we have on Earth, then it will share a distinctive spectral signature called the Vegetation Red Edge, or VRE. The new paper creates climate simulations that explore whether planets with a distinctively different climate than modern Earth’s could be so detected.Two earlier eras are useful here. The Last Glacial Maximum (LGM) occurred 21,000 years ago, with global temperatures on...
  • Big leap forward in detecting ground targets from cosmos

    03/01/2006 4:57:01 PM PST · by SandRat · 7 replies · 482+ views
    Air Force Links ^ | Michael P. Kleiman
    3/1/2006 - KIRTLAND AIR FORCE BASE, N.M. (AFPN) -- When launched in 2010, a football-field-in-length demonstrator radar antenna, weighing more than 5 tons, will serve as the forerunner for the future of America's intelligence, surveillance and reconnaissance assets in space. Administered by the Air Force Research Laboratory's Space Vehicles Directorate here, the innovative space-based radar antenna technology, or ISAT, program focuses on developing systems to deploy extremely large (up to 300 yards) electronically scanning radar antennas flying 5,700 miles above the Earth's surface and providing improved ground target detection to the warfighter. "These huge antennas will enable the revolutionary performance...