The China National Space Administration’s Tianwen-1 spacecraft has finished its mission to image the entire Martian surface.
“NGS experts believe these materials were applied ahead of an exhibition in the early twentieth century,” the organization said in a press release. “Van Gogh often re-used canvases to save money. However, instead of painting over earlier works, he would turn the canvas around and work on the reverse.”
The portrait shows “a bearded sitter in a brimmed hat with a neckerchief loosely tied at the throat,” NGS says. The portrait has an intense stare, and the right side of his face is in shadow, while his left ear is clearly visible.
When you visit a website, the page can capture your IP address, but this doesn’t necessarily give the site owner enough information to individually identify you. Instead, the hack analyzes subtle features of a potential target’s browser activity to determine whether they are logged into an account for an array of services, from YouTube and Dropbox to Twitter, Facebook, TikTok, and more. Plus the attacks work against every major browser, including the anonymity-focused Tor Browser.
“If you’re an average internet user, you may not think too much about your privacy when you visit a random website,” says Reza Curtmola, one of the study authors and a computer science professor at NJIT. “But there are certain categories of internet users who may be more significantly impacted by this, like people who organize and participate in political protest, journalists, and people who network with fellow members of their minority group. And what makes these types of attacks dangerous is they’re very stealthy. You just visit the website and you have no idea that you’ve been exposed.”
The risk that government-backed hackers and cyber-arms dealers will attempt to de-anonymize web users isn’t just theoretical. Researchers have documented a number of techniques used in the wild and have witnessed situations in which attackers identified individual users, though it wasn’t clear how.
INDIANAPOLIS (WISH) — It’s a question that’s puzzled doctors for decades: Why does cancer spread to where it spreads? Well, scientists may finally have an answer. Researchers at the University of…
The money will go to the Gates Foundation.
Microsoft founder Bill Gates revealed that he will give away his wealth for various reasons ranging from climate adaptation to pandemic prevention. This will eventually cross his name off on the world’s richest people list.
With his wife, Gates started the Bill and Melinda Gates Foundation (BMGF) in 2000 to fight disease, poverty, and inequity around the world\.
Gates plans to donate most of his wealth to charitable causes carried out by his foundation in the future.
Physics World
Faster light is just one benefit of a new family of topological insulators.