Even though some water may have been discovered there, Mars has less than 1% of the atmospheric pressure of that on Earth.
Mars, the fourth planet from the Sun, will be 57.6 million kilometres from Earth on Tuesday, the closest it has been since 2003 when it came within 55.7 million kilometres, which was the nearest in almost 60,000 years.
There's not enough trapped carbon dioxide to thicken the planet's atmosphere much.
"In fact, we now believe that early Mars was a lot like Earth". It's rocky, it's not too big or too small and its temperature isn't that far off from what we experience here on Earth, relative to the rest of the planets in our neighborhood. The picture was taken from a distance of 36.9 million miles (59,39 million km).
Mars makes close approaches to earth every 15 or 17 years, but this is the first time since 2003 that the Red Planet is arriving this close, officials of KSSTM, which functions under the Education Department, said.
For instance, back in early 2017 researchers examined data that was collected from the Mars Atmosphere and Volatile Evolution (MAVEN) program and noted then also that there wasn't enough Carbon dioxide in the red planet's atmosphere. This proximity gives the Red Planet its brightest appearance in the night sky since the 2003 opposition.
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And we could probably put human beings on Mars in a couple of decades - they would just have to live in enclosed habitats and wear space suits while walking around outside. Particularly since at the moment, it's at its closest proximity to the Earth for 15 years. A close encounter with Earth like this won't happen again until the year 2287.
But also, "around the time of opposition, a planet is at its closest distance to Earth for a given year", the United States space agency explained.
Now that we've gotten all of that out of the way, what does this mean for you, the novice astronomer or general sky-watcher? It has a very helpful atmosphere, which, being primarily Carbon dioxide with some nitrogen and argon and a few other trace elements, means that we can grow plants on Mars just by compressing the atmosphere. But now, a new study in Nature Astronomy suggests that with current technology, transforming the Red Planet into a verdant oasis would actually be impossible. Add a telescope and you can see a detailed view of the planet's surface and its polar caps.
Astronomical event was broadcast by NASA from the Griffith Observatory in Los Angeles.
Good luck and happy viewing!