In the coming month the inhabitants of the Earth will be able to see Mars as a bright star in the sky.
This year the two planets won't get quite as cozy. The most recent Mars Close Approach, in 2003, was the closest the planet had been in almost 60,000 years, at 34.9 million miles away.
How large Mars appears in the sky to people on Earth depends on where the two neighboring planets are in their elliptical journey.
It seems that sometimes, the two planets are opposite to the side of the sun and they are far away, and sometimes Earth catches up with the neighbor and can pass it to close to it.
In 2016, the planets were at the opposite ends of their orbits, with 75.6 million kilometers between them, making Mars appear very small.More news: 3Controversial rapper XXXTentacion shot dead
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Mars won't be this close again until September 15, 2035.
According to Dean Regasa (Dean Regas), astronomer from the Cincinnati Observatory, Mars will be easily visible to the naked eye. They give a sense of what the sun and sky have looked like from Mars' surface - at the brightest time of the day - as the storm has worsened.
If you miss the Mars Close Approach next month, the next approach will be October 6, 2020.
The two planets will come closer to each other in their orbits around the sun due to a phenomenon, which is known as "perihelic opposition". It will look like a glowing orange beacon of light rising in the southeast after sunset.
Mars is just over half the diameter of Earth, 4,219 miles in comparison to Earth's 7,922 miles. The orbit of planet is not a ideal circle, it is actually follows an elliptical path.
An illustration of Mars and Earth in opposition. "Gravitational tugging by the other planets constantly changes the shape of our orbits a little bit". You can see this selfie in the image at the beginning of the article. It is expected to be brightest in the hours before sunrise of Tuesday, July 31.