At least 1 in 12 stars may have eaten neighboring planets

An artist's concept of a methane-free planet being eclipsed by its star.

A new study published in Nature indicates at least one in a dozen stars have ingested or absorbed a planet at some point in the past. Researchers examined the chemical composition of 91 pairs of twin stars. Because the stars formed together, they should have identical compositions. But when a star ingests planetary material, such as iron from a rocky body, its chemistry alters.

Read More

Record-Breaking Solar Radiation Detected, Raising Physics Questions

A measurement of solar gamma rays observed by the High-Altitude Water Cherenkov Observatory Collaboration, with the Sun in the center.

A new study details the highest-energy radiation ever documented from the Sun, roughly 1 trillion times more powerful than visible light. Not only is the solar radiation stronger than expected, there’s also more of it. The researchers involved say the discovery calls for a “revised theoretical framework” to explain the excess of solar gamma rays.

Read More