Interstellar comet 3I/ATLAS has gone from a faint, anonymous smudge in survey data to one of the sharpest imaged visitors ...

What can mapped drainage systems on Mars teach scientists about the red planet's watery past? This is what a recent study ...

When we think of large mountains or volcanoes, we often think of Mount Everest, which holds the distinction as being the tallest mountain above sea level on Earth, measuring almost 5.5 miles (8.85 km) ...

A huge scar carved into the surface of Mars has been captured in never before seen detail by the European Space Agency's (ESA) Mars Express orbiter. The huge canyon, named Aganippe Fossa, stretches ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Lightning has been seen on other planets in the solar system, in the atmospheres of Jupiter and Saturn. Because Mars is cold ...

A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around the red planet had a front-row ...