Blackhole sounds hellish, while researchers create world's first synthetic embryo

 NASA releases blackhole sound - sounds hellish!

Recently, NASA released an audio clip that represents the sound coming from the center of the Perseus galaxy cluster.

NASA's website states, "...astronomers discovered that pressure waves sent out by the black hole caused ripples in the cluster’s hot gas that could be translated into a note – one that humans cannot hear some 57 octaves below middle C."

It further states, "The popular misconception that there is no sound in space originates with the fact that most of space is essentially a vacuum, providing no medium for sound waves to propagate through."

As per their official website, NASA has used a new sonification (the translation of astronomical data into sound) of Perseus -- the sound waves astronomers previously identified were extracted and made audible for the first time. What it means is that the signals were resynthesized into the range of human hearing by scaling them upward by 57 and 58 octaves above their true pitch. 

Link to NASA's YouTube audio clip: https://www.youtube.com/watch?v=ioR5np1fmEc 

World's first synthetic embryo with brain, beating heart

The researchers from the University of Cambridge have successfully generated a live synthetic embryo of a mouse using a mixture of stem cells. 

It is world's first such synthetic creation of an embryo without using eggs or sperm in a lab. The researchers used three stem cells, found in early mammalian development, and brought them to a level where they start interacting, thus behaving similar to the natural process.

The lead author and professor Magdalena Zernicka-Goetz says, "Our mouse embryo model not only develops a brain, but also a beating heart, all the components that go on to make up the body. It's just unbelievable that we've got this far. This has been the dream of our community for years, and major focus of our work for a decade and finally we've done it."

Ms Zernicka-Goetz further said, "There are so many people around the world who wait for years for organ transplants. What makes our work so exciting is that the knowledge coming out of it could be used to grow correct synthetic human organs to save lives that are currently lost."