From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or November at intervals of 100.5, 79, 25.5, and 79 years. During these events, Earth and the Moon ...

A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to less than a year.

For decades, one of the biggest challenges of sending humans to Mars hasn’t just been getting there, it’s getting back.

Mars is on the cusp of becoming bigger and brighter than at any point since 2022 as it comes into alignment with Earth and the sun. When you purchase through links on our site, we may earn an ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.