NASA scientists listen to the low-frequency pulsing hum of the Sun to gain insight into the star's atmosphere over time. The raw data comes from the ESA (European Space Agency) and NASA’s Solar and Heliospheric Observatory (SOHO) launched back in 1995. Researchers from Stanford Experimental Physics Lab then process and filter the data and speed it up "a factor 42,000 to bring it into the audible human-hearing range."
“Waves are traveling and bouncing around inside the Sun, and if your eyes were sensitive enough they could actually see this,” said Alex Young, associate director for science in the Heliophysics Science Division at NASA’s Goddard Space Flight Center in Greenbelt, Maryland...
Data from SOHO, sonified by the Stanford Experimental Physics Lab, captures the Sun’s natural vibrations and provides scientists with a concrete representation of its dynamic movements.
“We don’t have straightforward ways to look inside the Sun. We don’t have a microscope to zoom inside the Sun,” Young said. “So using a star or the Sun’s vibrations allows us to see inside of it..."
These vibrations allow scientists to study a range of complex motions inside the Sun, from solar flares to coronal mass ejections.
“We can see huge rivers of solar material flowing around. We are finally starting to understand the layers of the Sun and the complexity,” Young said. “That simple sound is giving us a probe inside of a star. I think that’s a pretty cool thing.”
A new definition of kilogram went into effect today. No longer is the kilogram defined by Le Grand K, a 140-year-old weight under glass in a secret location near Paris. Now it’s determined by the Planck constant, based on physicist Max Planck’s theory that “electromagnetic energy at a given frequency could only be emitted in […]
Here’s the first 14 of 100 proofs that the Earth is a globe, with the rest still to come author David Morgan-Mar. [via] 1. The Blue Marble The most straightforward way to check the shape of the Earth is to look at it. There’s one small problem, though. To see the shape of the Earth […]
Last month, Israeli non-profit SpaceIL’s Beresheet probe made it to the lunar surface but sadly it wasn’t a soft landing. Beresheet was the first private attempt at a lunar landing and they got pretty damn close. A couple weeks after the crash, NASA’s Lunar Reconnaissance Orbiter orbited over the area and NASA has released images […]
Raspberry Pi is one of the world’s most versatile open-source computers. Alexa is a home automation hub with limitless potential. Together, they’re a dream team for ambitious makers, opening the door to everything from automatic lights to voice-controlled robots. Learning Raspberry Pi is meant to be relatively easy for newbies, but its applications with Alexa […]
Heads up: The clock is winding down on a free-entry contest to win not only one of the best smartphones on the market but a handy pair of earbuds. A simple sign-up is all you need to be eligible to win a 256 GB iPhone XS Max, along with AirPods. And while “free” is tough […]
Kudos to those of us who have chosen a less wasteful third option to “paper or plastic” at the supermarket or club stores. Tote bags are reusable, but they can be a pain to tote around. Here’s an upgrade to that planet-saving measure. The Club Cart Lotus Trolley Bag is that rare tote you’ll want […]