The analysis of the astrophysicists Manasvi Lingam and Abraham Loeb shows that beams used for powering large light sails could yield parameters that are consistent with FRBs. The characteristic diameter of the beam emitter is estimated through a combination of energetic and engineering constraints, and both approaches intriguingly yield a similar result which is on the scale of a large rocky planet. Moreover, the optimal frequency for powering the light sail is shown to be similar to the detected FRB frequencies. These `coincidences’ lend some credence to the possibility that FRBs might be artificial in origin. Read more
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UNIVERSITY OF ADELAIDE—Ancient DNA research has revealed that Ice Age cave artists recorded a previously unknown hybrid species of bison and cattle in great detail on cave walls more than 15,000 years ago.
“Finding that a hybridization event led to a completely new species was a real surprise – as this isn’t really meant to happen in mammals,” says study leader Professor Alan Cooper, ACAD Director. “The genetic signals from the ancient bison bones were very odd, but we weren’t quite sure a species really existed – so we referred to it as the Higgs Bison.”Read more
Intelligent Robots might be the best possibility to explore deep space in search of extraterrestrials. Credit: NASA
If you’ve seen at least one other episode of the Guide to Space, you know I’m obsessed about the Fermi Paradox. This idea that the Universe is big and old, and should be teeming with life. And yet, we have no evidence that it exists out there. We wonder, where are all the aliens?
As we’ve demonstrated here in our own corner of the galaxy, it’s not our weak fleshy bodies that will be doing the hard work of exploring the Solar System, and eventually the galaxy, it’ll be the robots. Read more
Subsurface Ocean under the Crust of Saturns Moon Dione. Credit: NASA/JPL-Caltech/Space Science Institute
A subsurface ocean lies deep within Saturn’s moon Dione, according to new data from the Cassini mission to Saturn. Two other moons of Saturn, Titan and Enceladus, are already known to hide global oceans beneath their icy crusts, but a new study suggests an ocean exists on Dione as well. Read more
Over 30’000 rock art depictions have been documented. Picture: The Guardian
A world-first survey of more than 250 rock art sites in Western Australia’s Kimberley region has documented more than 30,000 images and will help researchers answer some of the biggest questions about human migration. The sites feature a number of the haunting, elongated human forms known as Gwion figures. Read morePicture-Gallery (The Guardian)
Jupiter’ s Moon Europa may potentially harbor Life in the Solar System. Credit: NASA/ESA/W. Sparks (STScI)/USGS Astrogeology Science Center
Astronomers using NASA’s Hubble Space Telescope have imaged what may be water vapor plumes erupting off the surface of Jupiter’s moon Europa. This finding bolsters other Hubble observations suggesting the icy moon erupts with high altitude water vapor plumes. The observation increases the possibility that missions to Europa may be able to sample Europa’s ocean without having to drill through miles of ice. “Europa’s ocean is considered to be one of the most promising places that could potentially harbor life in the solar system,” said Geoff Yoder, acting associate administrator for NASA’s Science Mission Directorate in Washington. “These plumes, if they do indeed exist, may provide another way to sample Europa’s subsurface.” Read more
The FAST Telescope in China is the largest in the World. Scientists hope to find Extraterrestrial Signals with it’ s help.
The world’s largest telescope will be completed this week in China and it has scientists very, very excited. With a whopping 1,640 feet (500 meter) wide dish the size of 30 football fields, the telescope will able to detect radio signals — and potentially signs of life — from distant planets.
For many people, the most exciting goal is the search for extraterrestrial life. The recent discovery of three life-friendly planets outside our solar system has rekindled discussion of whether intelligent life is unique to Earth. FAST’s sensitivity will be capable of detecting exoplanets like these in ways that other telescopes cannot. “FAST’s potential to discover an alien civilization will be five to 10 (times) that of current equipment, as it can see farther and darker planets,” Peng Bo, director of the NAO Radio Astronomy Technology Laboratory, told Xinhua. Read more