Persistent tremors on Mars suggest the planet’s interior is cooling and hint that there might be a pocket of magma beneath the surface.
NASA’s premier eye on the infrared sky is shutting down after operating more than three times longer than designed.
Concerns about the night sky remain as the fourth batch of Starlink satellites — and the second one to be launched within the span of a month — takes flight.
China’s Chang’e 4 mission has sent back fascinating insights and images in the year since its historic landing on the lunar farside.
NASA has picked the "Nightingale" site, located within a small crater on the asteroid Bennu, for its Osiris-REX mission to sample next year.
In the first public release of data from NASA’s flagship heliophysics mission, scientists on the Parker Solar Probe team reveal surprises and mysteries from our host star.
A second set of 60 Starlink satellites take to space, amid promise and controversy.