SMSS J031300.36-670839.3 is possibly one of the oldest stars ever identified. We don't know it's age, writes Invader Xan at the Supernova Condensate blog. But, based on the colors of light it produces, there's reason to think it dates to a time that is damn near impossible to comprehend.
To find a star which is so devoid of metals, it must be old. Very old. In fact, the venerable SMSS J031300.36-670839.3 shows all the hallmarks of being one of the second generation of stars ever formed. The first ever stars formed quite soon after the Universe was born. They were composed of little more than hydrogen and helium. As a result, they were massive, fast burning, and rapidly died as supernovae. Known as “Population III” stars, these mysterious primordial stellar beasts have never actually been observed. However, we know they must have existed.
You can read more about the star at the Supernova Condensate blog. And be sure to check out the comments where there's an answer to the question, "If this star is so old, why isn't it dead yet?"
Graduate student Jason Ahrns captured a stunning image of red sprites over Nebraska while aboard a plane chartered by the National Center for Atmospheric Research. And behold Scott McPartland’s rare video of the phenomenon in May.
Randy L. Korotev from the Washington U in St Louis Department of Earth and Planetary Sciences presents this handy flowchart (based on this one by Deborah Guedes) for deflating your excitement at having found rock that may be a meteorite but almost certainly isn’t. Today’s XKCD offers a handy abridgment if you find this one […]
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The tech industry is constantly innovating, and in order to stay competitive, you’ll need to keep up. The Programming Into the Future Bundle was created to teach you the skills employers are looking for at this very moment, including in-demand coding languages like Google Go.The bundle of courses includes instruction on a range of innovative tools that advanced coders […]
If you’re running low on MacBook storage, your options are pretty limited. External hard drives mean toting around another piece of bulky equipment, and you probably don’t want a USB stick constantly protruding from your laptop.That’s why the Nifty MiniDrive for MacBooks is such a desirable alternative, and one of our top tech finds this year. You can add […]