Although general relativity (GR) is an elegant theory of gravity, we don’t often need to use it. For most gravitational interactions, Newton’s theory of universal gravitation works just fine. Newton’s model is good enough to navigate spacecraft through the solar system and for most stars orbiting Sag A*, the supermassive black hole at the center […]

Solar storms may affect weather on Mars when they strike at the same time as major Martian dust storms, a new study suggests for the first time. Researchers found evidence of rising temperatures in the red planet’s lower atmosphere when the two events coincided—hinting that Mars may have a more complex atmospheric environment and weather […]

A new study led by astronomers at The University of Texas at Austin proposes a theory that could solve two astronomical riddles at once: the nature of Little Red Dots and the origin of globular clusters. Rather than representing distinct objects, the study suggests that one may instead be the ancestor of the other: Little […]

Space weather warnings could be received hours before Earth is hit rather than minutes with the help of a miniature UK-built instrument soon to be stationed in deep space. MAGIC (MAGnetometer from Imperial College) is part of the European Space Agency’s Heliospheric Pioneer for Solar and Interplanetary Threats Defense (HENON) CubeSat mission, which is scheduled […]

Are we alone in the universe? For scientists working on NASA’s proposed Habitable Worlds Observatory, that question is no longer purely philosophical. It is increasingly becoming an engineering problem.

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