Measurements of elliptical galaxies provide a new way of calculating the current expansion rate of the universe. And the results are adding to a growing controversy.
Scientists have made a new and improved map of possible water-ice reservoirs on Mars.
Two studies of the Martian atmosphere are changing the way we think about its current climate and its ancient past.
The already tentative detection of phosphine is under heavy scrutiny from the scientific community. A problem with the ALMA data hasn't helped.
A new, full analysis of Kepler data finds at least 300 million Earth-size planets in the habitable zone around Sun-like stars in our galaxy.