Is it possible that life began on Mars and then traveled to Earth to flower? A long-debated idea known as “panspermia” gained fresh life a few years ago, when two scientists independently argued that early Earth lacked certain molecules necessary for life formation, although early Mars most certainly did. So, what really is the reality about life on Mars?
After decades of research, scientists have concluded that there is a strong likelihood that an asteroid or comet collision changed Mars’ fate. Mars has a lot more impact craters compared to Earth, which isn’t unexpected considering the planet’s unfavorable position in our solar system, right near to the asteroid belt.
Mars, often known as the Red Planet, is a planet that is red in color. Dust in the Martian atmosphere and on the Martian surface.
As a result, asteroids continue to bombard Mars, and unlike Earth, Mars lacks a larger moon to shield it from incoming asteroids.
We know that large space objects have struck the Earth in the past, and that some of those impacts may have changed the path of our planet’s history.
The crater’s 180 km (110 mi) diameter ring is visible in this image from NASA’s Shuttle Radar Topography Mission STS-99. The numerous cenotes (sinkholes) clustered around the crater’s trough point to a prehistoric oceanic basin in the impact depression. Wikimedia Commons is the source of this image.
The Chicxulub impact crater (seen above) on Mexico’s Yucatan peninsula is one of the greatest examples we have, and some researchers believe it was the major cause of dinosaur extinction.
Is it possible that anything comparable to what happened on Earth may happen on Mars? In the Lyot region of Mars, we uncovered a spectacular impact crater with a diameter of roughly 125 kilometers.
Lyot is a huge peak ring crater in the Vastitas Borealis area of Mars, situated in the Ismenius Lacus quadrangle at 50.8° north latitude and 330.7° west longitude. It has a diameter of 236 kilometers. Bernard Lyot, a French astronomer (1897–1952), was the inspiration for the name. Wikimedia Commons is the source of this image.
The magnitude of this impact crater reflects the force of the impact, and it may be one of the primary reasons Mars has become a “desert.”
The impact of this comet on Mars’ planetary system might have wrought havoc. In terms of global climate change, it would have been a complete disaster. Is it possible that life existed on Mars before the planet lost its atmosphere?
Even civilizations that used to name Mars “home” have vanished. So, where did the Martians go if that’s the case? Were they able to make it out alive? Were they able to get away before the disaster? Is there any link between Mars and Earth? These are only a handful of the numerous questions that must be addressed.
Viking After a ten-month journey from Earth, I arrived at the mission’s destination, Mars, on July 20, 1976. The images Viking I returned to Earth were breathtaking, and some of them suggested that Mars was not all that different from Earth.
Death Valley, for example, is eerily identical to places on Earth. The narrative of Viking I grows more fascinating after executing numerous experiments in quest of life on Mars. Viking I had contentious results.
One of the Viking probe’s tests was designed by Dr. Gil Levin, and it was a rather “simple” test. Microorganisms, like you and me and everything else, breathe and then expel carbon dioxide, according to him.
NASA took a small sample of Martian soil and deposited it in a small container, which was then checked for a week for evidence of “bubbles” within the tube, but something unexpected happened after seven days.
The test for life on Mars was positive, according to NASA’s criteria, since “bubbles” were detected within the Viking I container. Other tests with various criteria came back negative, while one test resulted in a life-affirming positive.
In this situation, NASA chose caution, declaring, “There is no proof of life on Mars.” According to some scientists, Mars had an atmosphere comparable to ours 65 million years ago, but it was wiped.
To add to this notion, there has already been conjecture that the culture that formerly inhabited Mars may have fled to Earth in search of a safe refuge. Do we now qualify as the “Martians” that we’ve been looking for?
Castle Bravo was the site of a nuclear bomb test on March 1, 1954. Image courtesy of the US Department of Energy.
Some scientists claim to have uncovered substantial evidence of lost civilizations on Mars, as well as the possibility of detecting a nuclear signal in the Martian atmosphere that matches that of Earth following a nuclear explosion.
According to experts, Xenon-129 may be discovered in massive amounts on Mars, and the only known technique for producing it is a nuclear explosion. Is this again another illustration of how Earth and Mars are so similar? Is it evidence that Mars was once a vastly different place?