1. What was discovered on Mars?

1.What was discovered on Mars?
Our fiery red neighbor, Mars, has intrigued astronomers since the 2nd millennium BCE. 
The planet is named after the Roman god of war. It was similarly known as Nergal by Babylonians and Areos aster, or ‘star of Ares,’ by the Greeks.
Even today, it is an essential symbol in many cultures around the world.
Starting in the ’60s, we started using technology to study the planet scientifically. The first successful mission to land on the planet was NASA’s Viking 1 in 1975. Since then, many successful missions have been carried out, which landed rovers on Mars.
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We have learned a lot about the red planet, thanks to the data and images captured by these missions. We couldn’t positively identify the existence of life on Mars.
But we did find some interesting photographs that piqued the public interest in Mars exploration. Let us take a look at a few.
1. Little Colonsay
Source: NASA/JPL-Caltech/LANL
Little Colonsay was a shiny object on the Martian surface discovered by the Curiosity rover. Scientists think it could be a meteorite, but they’re open to other possibilities.
2. Morse Code
Source: NASA/JPL/University of Arizona
Forget about crop circles. There was an interesting image captured by the Mars Reconnaissance Orbiter (MRO) in February 2016. It shows a peculiar pattern on the surface of the red planet that looks a lot like the dots and dashes of Morse code. 
It is, in fact, made of dunes.
Scientists have attempted to analyze this code, which translates to a seemingly gibberish line, "NEE NED ZB 6TNN DEIBEDH SIEFI EBEEE SSIEI ESEE SEEE !!"
3. Fish-shaped rock
Source: NASA/JPL/Circle
We do not have enough evidence yet, which suggests that there is life on Mars. But UFO and alien enthusiasts keep finding signs of life in optical illusions and pareidolia. 
NASA's Curiosity rover photographed one such unusual formation that looked like a fish. While we cannot confirm whether it was a fossil or simple rock, it is safe to assume the latter.
NASA has previously stated that "Mars likely never had enough oxygen in its atmosphere and elsewhere to support more complex organisms. Thus, large fossils are not likely."