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Tech News
The ESA-JAXA BepiColombo probe separated from its propulsion module on September 3, completing the final phase before entering low orbit around Mercury. The mission, delayed nearly a year after a thruster malfunction forced a slower trajectory, has traveled roughly 9.9 billion kilometers using nine gravity-assist maneuvers around Earth, Venus and Mercury.
Researchers analyzing Mercury's surface features have found that the planet has been shrinking at a faster rate than earlier models suggested, as its interior cools and contracts. The findings come from renewed analysis of geological formations like fault scarps that record the planet's contraction over billions of years.
German Aerospace Center researchers report that Mercury's diameter has contracted by up to 14.5 miles since its formation, 10 to 30 percent more than earlier estimates suggested. The team says debris from impact craters had masked the true extent of this shrinkage, which stems from the planet gradually losing internal heat.
Researchers analyzing data from NASA's Messenger spacecraft now estimate Mercury has contracted up to 14 miles in diameter as its interior cooled over billions of years, roughly 30% more shrinkage than previously calculated. The findings, published in Geophysical Research Letters, suggest the planet's cratered, debris-strewn surface had obscured the true scale of this shrinkage.
Researchers recalculated how much Mercury's radius has contracted over its history and found the planet has shrunk 10% to 30% more than earlier studies indicated. The updated figures come from reassessing surface features like fault scarps that record the planet's cooling and contraction over billions of years.
Inception has released Mercury 2.5, an update to its diffusion-based language model that the company says is 40% more intelligent than Mercury 2 while keeping the same low-latency, low-cost performance. The model runs at over 1,100 tokens per second on standard NVIDIA GPUs, supports a 260K-token context window, and launches at an 80% discount, priced at $0.04 per million input tokens and $0.15 per million output tokens.
ESA's BepiColombo mission, a joint effort with Japan and the US costing nearly $2 billion, has released the Mercury Transfer Module that powered and propelled the spacecraft since its 2018 launch. The jettison follows nine gravity-assist flybys of Earth, Venus, and Mercury designed to slow the craft enough for Mercury's gravity to eventually capture it into orbit later this year.
An MIT student reportedly worked with dimethyl mercury despite the university's policy prohibiting its purchase or synthesis on campus. MIT confirmed the compound's use was unauthorized, though details on how the student obtained it and the extent of exposure remain unclear.