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Did Mars Ever Look Like Earth? NASA Scientist Answers

Mars is kind of just like Earth, as per a NASA scientist. In a video interview, astrobiologoist Dr. Becky McCauley Rench mentioned that the Purple Planet wasn’t as dry at all times, as we see it at present. As per NASA’s personal web site, “Mars, like Earth, has seasons, polar ice caps, volcanoes, canyons, and climate.” Indicators of historical floods have additionally been detected on Mars. Apart from, there’s proof of liquid salty water as nicely, particularly on some Martian hillsides, making our celestial neighbour just like our own residence planet.

On September 14, NASA shared the interview with Rench on Instagram. The query was easy and easy: Did Mars ever appear to be Earth? “Sure, we expect it did. Historical Mars could have been wetter and hotter — just like our residence planet,” Rench answered.

Explaining additional, Rench added that each time the photo voltaic system was fashioned 4 billion years in the past, Mars and Earth have been made “of the identical stuff” and they also seemed very comparable. “As we speak, each time we have a look at Mars, we see a really dry planet as in comparison with earth which is, you recognize, our Blue Marble,” she added.  

Shining mild on what makes her consider that Mars as soon as seemed like earth, Rench mentioned that we see proof of previous streams and possibly Mars had a shallow northern ocean as nicely. “Nevertheless, they diverged and we now have two completely different planets at present,” she added.  

“Because the Earth progressed with the event of life, on Mars the geologic exercise subsided, it misplaced that water and have become a a lot drier place. That is why it is so fascinating to check Mars. It helps us perceive extra about its previous and future in addition to understanding Earth and planetary evolution in our photo voltaic system and past,” she mentioned. 

“So did Mars ever appear to be Earth? Sure, it did, a really, very very long time in the past,” Rench concluded. 

NASA says on its SpacePlace section that Mars, a chilly desert world, is half the dimensions of the earth. It is  known as the Purple planet due to rusty iron within the floor. “There are indicators of historical floods on Mars, however now water principally exists in icy grime and skinny clouds,” added the area company.

Scientists have been wanting to grasp if there was life on the Purple Planet up to now. Missions are presently underway to determine if Mars may help life now, or sooner or later.





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