InSight

The good news is that there's a vast ocean of water under the surface of Mars – enough to cover the entire planet to a depth of a mile (1.6 km). The bad news is that this repository is so deep and unreachable that it might as well be in another galaxy.

NASA’s InSight listened out for seismic activity on Mars, and last year it picked up a marsquake so big it was suspected to be a meteoroid impact. Now, thanks to the cooperation of all agencies with orbiters around Mars, the source has been tracked.

One day on Mars is about 37 minutes longer than an Earth day – but it seems both planets are working to fix the gap. Data from NASA’s InSight lander have revealed Martian days are getting ever so slightly shorter, and scientists aren’t sure why.

The mission may be defunct, but NASA’s InSight Mars lander is still discovering new things about the Red Planet. Scientists poring over data have now made the first direct observations of another planet’s core, and it’s not quite what we thought.

After over four years on Mars, NASA's InSight lander has been declared dead. Mission Control was unable to reestablish contact with the robotic spacecraft on two consecutive attempts, showing that the batteries are exhausted.

NASA’s InSight has detected the strongest and longest quake on Mars so far. The event was five times more powerful than any previous marsquake, unleashing as much energy as all others combined. With the lander failing the record is unlikely to topple.

Mars is usually considered a geologically dead planet, but a new study challenges that idea. Multiple lines of evidence reveals a giant plume of magma is forcing its way up through the mantle and producing seismic activity in one region of the surface.

NASA’s InSight Mars lander has made two major new discoveries. By sensing seismic activity from the Red Planet, the craft has now detected a large meteorite impact, and found evidence of magma pools and volcanic activity still occurring today.

NASA's InSight Mars lander is trading less life for more science after the space agency decided to let the spacecraft's remaining science instrument run until the lander's solar power system fails completely sometime in August or September.

It looks as though NASA's InSight Mars lander's days are numbered after the space agency announced that the spacecraft is gradually losing power due to dust building up on its solar panels, already reducing their output by 90 percent.

NASA’s InSight lander has recorded the two strongest quakes detected so far on Mars, with both measuring over magnitude 4. These seismic events rolled in from the far side of the Red Planet, and one also clocked the record for longest marsquake.

NASA's InSight has provided … well, insight, into the inner workings of the Red Planet. By monitoring marsquakes over the past two years, the instrument measured the thickness and composition of Mars’ crust, mantle and core, revealing some surprises.