Monday February 18, 2019
Home Uncategorized Presence of M...

Presence of Methane on Pluto confirmed: NASA

0
//

Pluto_for_wikiWashington: NASA’s New Horizon probe — set for a Pluto flyby on July 14 — has confirmed that there is frozen methane on Pluto’s surface.

The Earth-based astronomers first observed Methane on Pluto in 1976.

“We already knew there was methane on Pluto but these are our first detections,” said Will Grundy, team leader with the Lowell Observatory in Flagstaff, Arizona.

Soon, we will know if there are differences in the presence of methane ice from one part of Pluto to another, he added in a statement.

New Horizons is now about 16 million km from the Pluto system – around 4.75 billion km from the Earth.

Methane was detected by a team of ground-based astronomers led by New Horizons team member, Dale Cruikshank of NASA’s Ames Research Center, Mountain View, California.

The detection was made possible with the help of  the infrared spectrometer on New Horizons spacecraft.

Methane is an odourless, colourless gas that is present underground and in the atmosphere on the Earth.

On Pluto, methane may be primordial, inherited from the solar nebula from which the solar system formed 4.5 billion years ago.

Just hours after its flyby of Pluto on July 14, the spacecraft will observe sunlight passing through the planet’s atmosphere, to help scientists determine the atmosphere’s composition.

“It will be as if Pluto were illuminated from behind by a trillion-watt light bulb,” noted New Horizons scientist, Randy Gladstone.

The spacecraft is healthy and all systems are operating normally.

“We are really on the final path. It just gets better and more exciting every day,” said project manager Glen Fountain. (IANS)

Next Story

NASA’S Twins Study Claims, Long-term Spaceflight Not Linked to Major Health Risks

"It's almost as if the body's on high alert," said Christopher Mason, Associate Professor at Weill Cornell Medicine.

0
NASA
Spending nearly a year in orbit increased NASA astronaut Scott Kelly's immune system response, as if, at the cellular level, his body felt under attack as compared to his Earth-bound twin brother, the Washington Post reported on Friday. Pixabay

While it was previously thought that long duration spaceflight can affect the human body, even at the molecular level, new results from NASAs “Twins Study” has showed that there are no major warning signs and no reason to think humans cannot survive a two-and-a-half-year round-trip journey to Mars.

As part of the “Twins Study”, NASA astronaut Scott Kelly spent a year in space while Mark, his identical twin, stayed on Earth as a control subject to look at the effects of space travel on the human body.

Spending nearly a year in orbit increased NASA astronaut Scott Kelly’s immune system response, as if, at the cellular level, his body felt under attack as compared to his Earth-bound twin brother, the Washington Post reported on Friday.

NASA
According to report, the biggest concern is radiation as such a mission would expose astronauts to levels of radiation greater than permitted under current guidelines. That would not necessarily prevent a mission, but it remains a concern. Pixabay

These comparisons, however, has not raised any red flags about long-term spaceflight on the International Space Station (ISS), NASA officials were quoted as saying at the annual meeting of the American Association for the Advancement of Science here.

“It’s almost as if the body’s on high alert,” said Christopher Mason, Associate Professor at Weill Cornell Medicine.

The space sojourn also changed the activity of some of his genes.

“It’s mostly really good news,” Mason said, adding, “the body has extraordinary plasticity and adaptation to being in zero gravity, at least for a year”.

NASA
“It’s almost as if the body’s on high alert,” said Christopher Mason, Associate Professor at Weill Cornell Medicine. Pixabay

According to Craig Kundrot, Director of NASA’s space life and physical sciences division, so far the space agency’s research found nothing that would make a Mars mission impossible.

Also Read: Google To Test Updating Pre-loaded Apps Without Signing Into Account
According to report, the biggest concern is radiation as such a mission would expose astronauts to levels of radiation greater than permitted under current guidelines. That would not necessarily prevent a mission, but it remains a concern.

However, Kundrot cautioned that the twin study has only two people as samples. “We don’t regard any of this as conclusive, but on the whole it’s encouraging,” he said, adding, “there are no new major warning signs”. (IANS)