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Emerging from an ice age that ended about 400,000 years ago, Mars is also Coming close to Earth

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Mars . Image Source : Wikipedia
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Deep analysis of the image captured on radar shows that the mars is coming out of an ice age due to ongoing climate change, said scientists on Thursday.

According to the research published in the journal Science Martian, ice began its retreat about 370,000 years ago, marking the end of the last ice age.

Using images taken by satellites orbiting Mars, the researchers determined that about 20,872 cubic miles (87,000 cubic km) of ice has accumulated at its poles since the end of the ice age, mostly in the northern polar cap.

Scientists are keenly interested in piecing together the climate history of Mars, which contains strong evidence that oceans and lakes once pooled on its surface, bolstering the prospects for life.

Scientists can now use the new ice measurements in computer simulations to more accurately model the Martian climate, said planetary scientist Isaac Smith of the Southwest Research Institute in Boulder, Colorado, who led the study.

Scientists are keenly interested in piecing together the climate history of Mars, which contains strong evidence that oceans and lakes once pooled on its surface (Source: Reuters)
Scientists are keenly interested in piecing together the climate history of Mars, which contains strong evidence that oceans and lakes once pooled on its surface (Source: Reuters)

“Previously those models were unconstrained by observations so they started with guesses. Now they have more to run on,” Smith said.

The study also was the first to tie a specific layer of Martian ice with a specific period of time. “Eventually we’d like to be able to do this for every layer,” Smith said.

From the perspective of an Earthling, every day on Mars may feel like an ice age. According to NASA, temperatures on Mars may hit a high at noon at the equator in the summer of roughly 70 degrees Fahrenheit (20 degrees Celsius), or a low of about minus-225 degrees Fahrenheit (minus-153 degrees Celsius) at the poles.

Unlike Earth, ice ages on Mars occur when its poles are warmer than average and frozen water is more stable at lower latitudes. Transitions between lengthy climate phases can leave telltale features in the ice, the research showed.

For example, Smith and colleagues found dramatic slopes in layers of ice within the Martian northern ice cap. Other layers reveal ice flowing in reverse direction. The climate cycles are triggered by changes in Mars’ orbit and tilt, which affect how much sunlight reaches the planet’s surface.

The climate changes on Red planet depend on the its orbit and tilt which also affects how much sunlight reaches the planet’s surface. For example, Smith and colleagues found dramatic slopes in layers of ice within the Martian northern ice cap. Other layers reveal ice flowing in reverse direction.

It is said that shifts on Mars are pretty strong as their tilt change is as much as 60 compared to that Earth’s tilt degree is just about 2 degrees. (Reuters)

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  • Pritam Go Green

    Just waiting for the day when scientists will declare Mars suitable enough for growth of living organisms. Hope one day we humans will travel to Mars.

  • Pritam Go Green

    With this new theory one thing is for sure that the day is not far when Mars will become a living planet.

Next Story

New Boss of NASA Gets Hearty Congratulations

NASA's new boss is already getting cheers from space.

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Vice President Mike Pence, left, shakes hands with the new NASA administrator Jim Bridenstine, right, on stage during a swearing-in ceremony, April 23, 2018, at NASA Headquarters in Washington.
Vice President Mike Pence, left, shakes hands with the new Administration of the National Aeronautics and Space Administration (NASA), Jim Bridenstine, right, on stage during a swearing-in ceremony, Monday, April 23, 2018, at NASA Headquarter in Washington. VOA

NASA’s new boss is already getting cheers from space.

Immediately after being sworn into office Monday by Vice President Mike Pence, NASA Administrator Jim Bridenstine took a call from the three U.S. astronauts at the International Space Station who offered “hearty congratulations.” The Oklahoma congressman became the 13th administrator of NASA, filling a position that had been vacant for more than a year.

“America loves what you guys are doing,” Bridenstine, a former naval aviator, told the astronauts. He promised to do his best “as we reach for new heights and reveal the unknown for the benefit of humankind.”

This is the 60th anniversary year for NASA .

NASA office.
NASA. (Wikimedia Commons)

Bridenstine is the first elected official to lead NASA, something that had bogged down his nomination last year by President Donald Trump. The Senate approved his nomination last week by a narrow vote of 50-49. Monday’s swearing-in ceremony took place at NASA headquarters in Washington.

Pence noted that the space agency, under Bridenstine’s direction, will work to get astronauts back to the moon and then, with help from commercial space and international partners, on to Mars.

Also Read: NASA’s Planet-Hunting Telescope Lifts Off In U.S.

“NASA will lead the way,” said Pence, who heads the newly resurrected National Space Council.

Charles Bolden Jr., a former space shuttle commander and major general in the Marines, was NASA’s last official administrator. The space agency was led by Acting Administrator Robert Lightfoot in the interim. Lightfoot retires from NASA at the end of this month.  VOA