Did Mars ever look like Earth? NASA scientist answers


According to a NASA scientist, Mars is quite similar to Earth. In a video interview, astrobiologist Dr. Becky McCauley Rench, that the Red Planet has not always been as dry as we see it today. According to NASA’s own website, “Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons, and weather.” Traces of ancient floods have also been discovered on Mars. There is also evidence of liquid salt water, particularly on some Mars hills, making our heavenly neighbors similar to our own home planet.

On September 14th, NASA shared the interview with Rench on Instagram. The question was clear and simple: Did Mars ever look like Earth? “Yes, we believe it was like that. Old Mars may have been more humid and warmer – similar to our home planet, ”replied Rench.

Rench went on to explain that whenever the solar system formed 4 billion years ago, Mars and Earth were “made of the same stuff” and therefore looked very similar. “If we look at Mars today, we see a very arid planet today compared to Earth, which is our blue marble,” she added.

Shedding light on what leads them to believe Mars once looked like Earth, Rench said we see evidence of past currents and maybe Mars had a shallow northern ocean too. “However, they diverged and we have two different planets today,” she added.

“As the Earth progressed with the evolution of life, the geological activity on Mars decreased, it lost this water and became a much drier place. This is why it is so fascinating to study Mars. It also helps us to learn more about its Understanding the past and the future. ” than understanding the evolution of the earth and planets in our solar system and beyond, “she said.

“So Mars ever looked like Earth? Yes, that was a very, very long time ago,” Rench concluded.

NASA says in their SpacePlace section that Mars, a cold desert world, is half the size of Earth. It is also known as the Red Planet because of the rusty iron in the ground. “There are signs of ancient floods on Mars, but now water mainly exists in icy dirt and thin clouds,” added the space agency.

Scientists wanted to find out if there was life on the Red Planet in the past. Missions are currently underway to see if Mars could support life now or in the future.


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