This is the Sun, as photographed October 20th by Alan Friedman.
See those little plumes, rising like steam off the top and sides? That is not steam, says astronomy blogger Phil Plait. Instead, it's ...
the gas that follows magnetic loops piercing the Sun's surface. When we see them against the Sun's surface they're called filaments, and when they arc against the background sky on the edge of the Sun's disk they're called prominences.
They look so delicate, probably because they make the Sun look fuzzy, like a comfy blanket... but have no doubts on the fury and scale of what you're seeing here. See that little bright spot on the plume on the left, just above the Sun's edge? That spot is the same size as the Earth. Our planet is about 13,000 km (8000 miles) in diameter, so that one minor prominence is roughly 50,000 km high. That's 30,000 miles. And it's positively dwarfed by the Sun itself. A million Earths could fit inside the Sun.
It's neat—if somewhat ego-deflating. And there's more, read the rest at Bad Astronomy.
Apple released this lovely new commercial featuring Carl Sagan reading from his magnificent 1994 book Pale Blue Dot: A Vision of the Human Future in Space, now available as an audiobook. This surprising partnership spurred Adweek to interview my friend Ann Druyan, Sagan’s wife, collaborator, and creative director of the Voyager Golden Record, about being […]
The Action Lab took a maglev gyroscope and placed it inside a sealed chamber to see what happens to a levitating gyroscope in a vacuum. A lot of people took issue with the experiment’s setup and explanation, but it’s interesting nonetheless. He responded to those concerns: Hi everyone! I see a lot of comments that […]
Shocking footage, taken from a nearby aircraft, shows a jetliner spraying its appalling chemical payload into our skies. Traffic 12 o'clock pic.twitter.com/g5QjlQ5v8z— Airplane Pictures ✈ (@iLove_Aviation) June 19, 2017
Although flagship smartphones are unlikely to adopt heavy-duty outer casing anytime soon, you can always prepare your device for the outdoors with a beefy case and and an external battery like this Nomad Tile Trackable PowerPack, available in the Boing Boing Store for $119.95.The Nomad Tile can fully recharge an iPhone 7 over three times […]
Even though credit cards now feature an EMV chip for securing transactions, they still have to include the magnetic strip for compatibility with older point of sale systems. Because of this, there’s no way for the chip’s new security capabilities to protect against card skimmers in the wild.How do you protect yourself from legacy-technology-induced fraud? […]
As the old saying goes, “You should sit in meditation for 30 minutes every day. Unless you are too busy, in which case you should meditate for an hour.” Since most of us have an endless list of things to do and people to see, carving out quiet time can feel impossible, especially when most […]