Astronomy

Some of the world’s biggest megacities are located in river deltas threatened by subsidence due to excessive groundwater extraction and urban expansion, compounding the threat they face from sea-level rise

Some of the world’s biggest megacities are located in river deltas threatened by subsidence due to excessive groundwater extraction and urban expansion, compounding the threat they face from sea-level rise

A decades-long push to identify clear biomarkers for anxiety and depression is at last achieving results

A decades-long push to identify clear biomarkers for anxiety and depression is at last achieving results

The U.S. space agency and the Department of Energy will work together to build a fission reactor on the lunar surface in the next four years

There is a fundamental tension in space exploration that has created ongoing debates for decades. By creating the infrastructure we need to explore other worlds, we damage them in some way, making them either less scientifically interesting or less “pristine,” which some would argue, in itself, is a bad thing. A new paper available in JGR Planets, from Francisca Paiva, a physicist at Instituto Superior Técnico, and Silvio Sinibaldi, the European Space Agency’s (ESA’s) planetary protection officer, argues that, in the Moon’s case at least, the problem is even worse than we originally thought.

What exists beneath the surface of Jupiter’s icy moon, Callisto? This is what a recent study accepted by The Planetary Science Journal hopes to address as a team of researchers investigated the subsurface composition of Callisto, which is Jupiter’s outermost Galilean satellite. This study has the potential to help scientists better understand the interior composition of Callisto, which is hypothesized to possess a subsurface liquid water ocean, and develop new techniques for exploring planetary subsurface environments.

Mathematical tools from string theory are giving scientists a new way to study the networking of neurons

A Chinese application to the International Telecommunications Union suggests plans for the largest satellite mega constellation ever built – but something else might be going on here

A Chinese application to the International Telecommunications Union suggests plans for the largest satellite mega constellation ever built – but something else might be going on here

Schmidt Sciences has unveiled details on four ambitious observatories to monitor the dynamic cosmos, with data from all four expected by 2029.

The post Four Privately Funded Observatories in the Next Three Years appeared first on Sky & Telescope.

In a historic first, an unspecified medical issue is prompting an early return from the International Space Station on Wednesday night, January 14th. And while the return will be featured live online from undocking to splashdown, if skies are clear, you might just be able to see the pair crossing the night sky tonight, shortly after undocking.

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more slowly than previously thought, and adds to the evidence that they weren't all one species

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more slowly than previously thought, and adds to the evidence that they weren't all one species

Easing stress is one of the healthiest pursuits you can embark on this January. Here are some evidence-backed ways to ground yourself in 2026

Easing stress is one of the healthiest pursuits you can embark on this January. Here are some evidence-backed ways to ground yourself in 2026

New clues hidden inside T. rex bones suggest that the carnivore lived longer lives than we thought

Robert F. Kennedy, Jr.’s Centers for Disease Control and Prevention has slashed childhood vaccine recommendations in the middle of respiratory virus season