Today’s DNA, Immunity, Time Studies Boost Heal…

ISS – Expedition 59 Mission patch.

May 21, 2019

The Expedition 59 crew is spending all day Tuesday exploring how astronauts adjust with Earth’s gravity no longer bearing down on them. Spacewalk preparations and lab maintenance are also ongoing aboard the International Space Station.

Station crewmembers and future astronauts going to the Moon in 2024 have to adjust to the lack of a sunrise/sunset cycle humans experience everyday on Earth. As a result, time perception is impacted and may affect sleep and work patterns. Astronauts Anne McClain, Nick Hague and David Saint-Jacques started the day on a study, going on since July 2017, exploring subjective changes in time that can alter physical and cognitive performance.

Image above: The full moon is pictured from the International Space Station as the orbiting complex orbited 263 miles above the South Atlantic Ocean. Image Credit: NASA.

Hague later sequenced DNA samples for a study exploring how increased exposure to space radiation impacts crew health. He used the Biomolecule Sequencer for the investigation to demonstrate DNA sequencing in space. The Genes In Space-6 experiment is researching how space radiation damages DNA and how the cell repair mechanism works in microgravity.

Immune system studies continued full speed ahead today to test the hypothesis the immune response decreases in space. Astronaut Christina Koch teamed up with McClain and Saint-Jacques throughout the day observing mice for the study. Observations may help scientists develop advanced vaccines and therapies benefiting both astronauts and Earthlings.

From Day Into Night on the International Space Station

Image above: NASA astronaut Christina Hammock Koch posted this image of Earth taken from aboard the International Space Station. She said: “A couple times a year, theInternational Space Stationorbit happens to align over the day/night shadow line on Earth. We are continuously in sunlight, never passing into Earth’s shadow from the Sun, and the Earth below us is always in dawn or dusk. Beautiful time to cloud watch. #nofilter”. Image Credit: NASA.

Commander Oleg Kononenko continues to set up a pair of Russian Orlan spacesuits and outfit the Pirs airlock as the May 29 spacewalk approaches. Flight Engineer Alexey Ovchinin worked on space cardiology research before switching to space plumbing and pumping urine into the Progress 71 cargo craft.

Related links:

Expedition 59:

Time perception:

Biomolecule Sequencer:

Genes In Space-6:

Immune system studies:

Space cardiology research:

Pirs airlock:

Moon in 2024:

Space Station Research and Technology:

International Space Station (ISS):

Images (mentioned), Text, Credits: NASA/Mark Garcia.

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Gas insulation could be protecting an ocean in…

Sapporo, Japan (SPX) May 21, 2019

A gassy insulating layer beneath the icy surfaces of distant celestial objects could mean there are more oceans in the universe than previously thought.

Computer simulations provide compelling evidence that an insulating layer of gas hydrates could keep a subsurface ocean from freezing beneath Pluto’s icy exterior, according to a study published in the journal Nature Geoscience.

In J
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Is NASA looking at the wrong rocks for clues t…

Washington DC (SPX) May 21, 2019

In 2020, NASA and European-Russian missions will look for evidence of past life on Mars. But while volcanic, igneous rock predominates on the Red Planet, virtually the entire Earth fossil record comes from sedimentary rocks.

Addressing the problem in Frontiers in Earth Science, Swedish scientists have begun compiling evidence of fossilized microbes in underexplored igneous rock environment
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