成人黑料

Is there life on Mars? That question is propelling the mission of the Perseverance rover, which landed on the Red Planet Feb. 18. It has also driven the research of 成人黑料 Geography teacher and Mars researcher Richard Soare for over two decades.

Specifically, Richard鈥檚 research has focused on finding evidence of near-surface ice in the non-polar regions of Mars.

Photo: A Mars view of the Earth. Courtesy of NASA.

Recent 鈥渋cy鈥� findings

In January, an international team of planetary scientists led by Richard and comprised of members from the United States, France, Great Britain, Ireland and Canada, published a high-impact article showing that very near-surface ice is present today at the northern mid-latitudes.

鈥淭he statistical approach that was used for the first time could be extremely useful in identifying other areas where very near-surface water ice could be present,鈥� Richard said. 鈥淣ASA believes that where there is water, or water ice, habitability may also be in the geological record.鈥�

Richard has published over 150 peer-reviewed articles, books, encyclopaedia entries and extended abstracts on Mars.

Last week, Richard was interviewed by CTV News, CJAD and Dawson鈥檚 Communications Office.

Q and A with Dawson鈥檚 Richard Soare

Why are you so intrigued by the Red Planet?

Richard: On a warm breezy summer鈥檚 day on Mars, at or near the mid-latitudes, a 成人黑料 student could amble about quite happily in flip-flops and a T-shirt. Despite the ambient temps, absent oxygen would engender asphyxiation, low air-pressure would result in boiling blood and, unless protected by a sunscreen (SPF 10,000), UV rays and cosmic rays would destabilise DNA, affect deep epidermal burns, cause blindness and, in general, not leave one in tip-top shape.

On the other hand, environmental conditions at the surface of Mars were much more Earth-like than today early on in its history, with flowing water, hemispheric oceans and seasonal variances of weather that perhaps would not be out of place in today鈥檚 high arctic in Canada.

The possibility of Mars having been a cold sister to Earth drives much of the Red Planet鈥檚 exploration.

What is the significance of this Mars mission of the Perseverance rover? Why is it important?

Richard: The Jezero impact crater is ancient, almost 4 billion years old. Its rim is dissected by a channel that is thought to have discharged fluvial sediments deltaically on the crater floor. With stable water at the surface, a dense atmosphere protecting all that lies below it from harmful radiation, and intermittently-clement temperatures, early Mars might have followed an evolutionary path not far from that of the Earth. Traces of organic molecules or, possibly but not probably, fossilised evidence of simple single-celled organismal life could be embedded in Jezero鈥檚 deltaic sediments.

What an exciting day it would be for humanity were Perseverance to discover that the Earth is not unique, biologically speaking.

What drives your quest for knowledge and learning?

Richard: Mars is an undiscovered country. It comprises a surface area equal to all of the Earth鈥檚 non-oceanic land but pristine and largely unaffected by our human peccadillos. What a wonderful place to explore physically, philosophically and, to the extent that what we learn about the Red Planet reveals as much about us as it does that alien environment, psychologically.

What research are you most proud of and why?

Richard: The focal point of my research is investigating the extent to which the freeze-thaw cycling of water has impacted and revised Mars鈥� surface from the relatively recent past to ancient times. The research has been published in leading planetary-science journals such as Icarus and Earth and Planetary Science Letters as well as in countless extended abstracts. I was the lead editor and a contributor to two recently published books: 鈥淒ynamic Mars: recent and current landscape evolution of the Red Planet鈥� (2018) and 鈥淢ars鈥� Geological Enigmas: from the Late Noachian Epoch to the present day鈥� (2021). A third book is in the early stages of preparation: 鈥淚ce is nice: a volatile journey from the inner to the outer solar system and beyond鈥� (2023). I have served on numerous review committees for NASA and have also been the lead organiser of two planetary science workshops funded by NASA. Hopefully, the future will be as full of opportunity for me as the past.

What advice do you have for young people interested in doing the kind of research you are doing?

Richard: Science, I mean the universe, has no limits or constraints on the power of thought. As a philosopher cum planetary scientist, I have experienced the wonders of discovery and the fulfilment of seeing things that no one else has. There is no reason to believe that I am at all special, no more no less so than any of my teaching colleagues at Dawson, any of my students or even the larger student body at the college.

The next time that the moon is high in the sky and the stars are shining brightly upon you, wonder why and鈥︹�︹�︹�︹��!!