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Mannowetz et al

Present a preclinical study on mice and macaques demonstrating the safety and efficacy of YCT-529, a drug forming the basis of the “first non-hormonal male birth control pill”. This research is from a startup called YourChoice Therapeutics — which is now working on human clinical trials. Exciting to see reproductive medicine advancing in this direction! #reproductivehealth.

[ https://www.nature.com/articles/s43856-025-00752-7](https://www.nature.com/articles/s43856-025-00752-7)

“A Stunning Fusion Rocket Takes Shape”: revolutionary propulsion tech promises to slash interplanetary travel time in half, rewriting the future of spaceflight

IN A NUTSHELL 🚀 Pulsar Fusion is developing the Sunbird, a fusion-powered rocket, to significantly reduce interplanetary travel times by 2027. 🔬 The Sunbird uses a Duel Direct Fusion Drive (DDFD) engine, promising unprecedented exhaust speeds and efficiency. 🛰️ The rocket will operate as a space “tugboat,” stationed in orbital satellite docks for missions to

Burning heavy fuel oil with scrubbers found to be the best available option for bulk maritime shipping

When the International Maritime Organization enacted a mandatory cap on the sulfur content of marine fuels in 2020, with an eye toward reducing harmful environmental and health impacts, it left shipping companies with several main options.

They could burn low-sulfur fossil fuels, like marine gas oil, or install cleaning systems to remove sulfur from the produced by burning heavy fuel oil. Biofuels with lower sulfur content offer another alternative, though their limited availability makes them a less feasible option.

While installing exhaust gas cleaning systems, known as scrubbers, is the most feasible and cost-effective option, there has been a great deal of uncertainty among firms, policymakers, and scientists as to how “green” these scrubbers are.

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