Mercury concentrations in tree rings may enable trees to be ‘witnesses’ of illegal gold mining activities in the Amazon

For hundreds of years, the Amazon has been exploited for its gold. Today, the precious metal is just as sought after, but the remaining tiny gold particles are much harder to find. Mining often happens in artisanal and small-scale mining operations that release mercury (Hg) into the air, polluting the environment and harming human health.

FCC moves to update satellite power limits amid push for adaptive regulations

The Federal Communications Commission is preparing to update decades-old satellite power limits amid broader efforts to modernize and streamline regulations, the new head of the U.S. agency’s space division said April 7. The post FCC moves to update satellite power limits amid push for adaptive regulations appeared first on SpaceNews.

A day on Uranus is actually longer than we thought, Hubble Telescope reveals

A fresh analysis of a decade’s worth of Hubble Space Telescope observations shows Uranus takes 17 hours, 14 minutes and 52 seconds to complete a full rotation — 28 seconds longer than the estimate provided by NASA’s Voyager 2 spacecraft nearly 40 years ago. Continue ReadingA day on Uranus is actually longer than we thought, Hubble Telescope reveals

The best new astronomy products we saw at NEAF 2025

The annual Northeast Astronomy Forum (NEAF) was held over the weekend of April 5 and 6 at Rockland Community College in Suffern, New York. Organized by the Rockland Astronomy Club, NEAF is one of the world’s premier annual astronomy expos. It brings together amateur astronomers, professionals, and industry leaders for a weekend of discovery andContinue reading “The best new astronomy products we saw at NEAF 2025” The post The best new astronomy products we saw at NEAF 2025 appeared first on Astronomy Magazine. Continue ReadingThe best new astronomy products we saw at NEAF 2025

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Gateway lunar space station’s first habitation module arrives in U.S.

From the mountains of Turin to the deserts of Arizona, a core element of Gateway, humanity’s first lunar space station, is now one step closer to the moon. As seen in this April 1, 2025, photo, HALO (Habitation and Logistics Outpost), Gateway’s first pressurized module and one of its foundational elements, recently arrived in Gilbert, Arizona, following its fabrication by Thales Alenia Space in Turin, Italy.

Space Symposium 2025

The global space industry’s largest annual conference is happening April 7-10 at the Broadmoor Hotel in Colorado Springs, Colorado. Space Symposium coverage sponsor The post Space Symposium 2025 appeared first on SpaceNews.

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