Month: July 2024

Enlarge / Artist's illustration of the COSI spacecraft. (credit: Northrop Grumman/European Southern Observatory (background image))

A small research satellite designed to study the violent processes behind the creation and destruction of chemical elements will launch on a SpaceX Falcon 9 rocket in 2027, NASA announced Tuesday.

The Compton Spectrometer and Imager (COSI) mission features a gamma-ray telescope that will scan the sky to study gamma-rays emitted by the explosions of massive stars and the end of their lives. These supernova explosions generate reactions that fuse new atomic nuclei, a process called nucleosynthesis, of heavier elements.

Using data from COSI, scientists will map where these elements are forming in the Milky Way galaxy. COSI's observations will also yield new insights into the annihilation of positrons, the antimatter equivalent of electrons, which appear to be originating from the center of the galaxy. Another goal for COSI will be to rapidly report the location of short gamma-ray bursts, unimaginably violent explosions that flash and then fade in just a couple of seconds. These bursts are likely caused by merging neutron stars.

Enlarge (credit: SOPA Images / Contributor | LightRocket)

OnlyFans' paywalls make it hard for police to detect child sexual abuse materials (CSAM) on the platform, Reuters reported—especially new CSAM that can be harder to uncover online.

Because each OnlyFans creator posts their content behind their own paywall, five specialists in online child sexual abuse told Reuters that it's hard to independently verify just how much CSAM is posted. Cops would seemingly need to subscribe to each account to monitor the entire platform, one expert who aids in police CSAM investigations, Trey Amick, suggested to Reuters.

OnlyFans claims that the amount of CSAM on its platform is extremely low. Out of 3.2 million accounts sharing "hundreds of millions of posts," OnlyFans only removed 347 posts as suspected CSAM in 2023. Each post was voluntarily reported to the CyberTipline of the National Center for Missing and Exploited Children (NCMEC), which OnlyFans told Reuters has "full access" to monitor content on the platform.

Enlarge / Robert Wickens looks out from the cockpit of the Formula E GenBeta test car in Portland, Oregon. (credit: Formula E)

PORTLAND, ORE.—The timing of Robert Wickens' life-altering crash at Pocono Raceway in 2018 could hardly have been more cruel. After landing a full-time seat in IndyCar, he was named rookie of the year at the Indy 500 in June, finally showing the world his talent in a single-seat race car. F1's loss was IndyCar's gain, and the prospect of championships seemed certain. But a bad wreck derailed all of that, leaving Wickens paralyzed from the waist down. This past weekend, he made his return to the cockpit of a single-seater, testing a Formula E car with hand controls at Portland International Raceway.

It wasn't his first time in a racing car since 2018—for the last few years he's been running in IMSA's Michelin Pilot Challenge series, taking the 2023 TCR championship in a Hyundai Elantra N. But Formula E's GenBeta car weighs almost 900 lbs less than Wickens' Hyundai and boasts far more power and that immediate electric torque. More power than the Gen3 Formula E cars that lined up to race the following day, too—the 530 hp (395 kW) GenBeta machine is Formula E's test bed and is able to deploy energy from its front electric motor (in addition to the rear motor) instead of just regenerating energy under braking.

I spoke with Wickens a few hours before his test and asked what he was expecting in terms of performance. "It's an entirely different beast to an IndyCar," he said. "So I know here in Portland that they actually had the exact same straight line speed as IndyCar [170 mph/275 km/h], obviously achieving in very different ways. The aerodynamic differences between the two and the whole philosophy of the series are entirely different. You'll never really compare them, apples to apples, I don't think, but, I'm really excited to give the Gen beta car a go," Wickens said.