One week from today, the MESSENGER spacecraft will fly by Mercury for the second time. As part of the final preparations for this encounter, the Gamma-Ray Spectrometer (GRS) was placed in an “anneal ...

Calibration is a key moment in the life of a space telescope before launch. Those who have designed and built the instrument and the future users must precisely measure its performance before it ...

Marine gamma-ray spectrometry represents a pivotal methodological advancement for assessing radiological activity in marine environments. Recent developments in detector technology – including sodium ...

The longest gamma-ray burst ever recorded did not roar for seconds or even minutes, but for a staggering seven hours, forcing ...