NASA says it'll be brightest tomorrow night.
Skygazers are preparing for Mars to be at its biggest and brightest in years over Irish skies this week, as the red planet lines up with Earth on the same side of the Sun.
This phenomenon happens every 26 months and is what astronomers call "opposition".
This year's opposition will occur on October the 13th, with Mars to appear brightest overnight tomorrow (Tuesday).
While Mars will look spectacular tomorrow night it wont be as visible as it was in 2003, according to NASA. In fact Mars won't be as close as it was 17 years ago until August 28, 2287.
For those planning to keep an eye out for the planet, Space.com says: ''While Mars is easily distinguished by its reddish color and visible to the naked-eye during opposition, a high-quality telescope is still required to view its famous surface features in greater detail''.
