One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

Two spacecraft on Mars have captured new images of the interstellar comet 3I/ATLAS in the closest view that the European Space Agency (ESA) will get of the mysterious object, according to an ESA ...

Curiosity has been the subject of countless selfies and images taken from space, but has never been photographed from Mars' own orbit. The reconnaissance orbiter, which has been circling Mars since ...

There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence suggests. According to a new paper published April 25 in the journal National Science Review, ...

"The idea was for our payload to get us just up to the potential biosignature designation and have the rest of the story told by instruments here on Earth." A potentially huge discovery by NASA's ...