Gregory H. Revera, Wikimedia Commons // CC BY-SA 3.0
Gregory H. Revera, Wikimedia Commons // CC BY-SA 3.0

Study Suggests There's Water Beneath the Moon's Surface

Gregory H. Revera, Wikimedia Commons // CC BY-SA 3.0
Gregory H. Revera, Wikimedia Commons // CC BY-SA 3.0

Astronauts may not need to go far to find water outside Earth. As CNN reports, Brown University scientists Ralph E. Milliken and Shuai Li suspect there are significant amounts of water churning within the Moon’s interior.

Their findings, published in the journal Nature Geoscience, lean on the discovery of glass beads encased in the Moon’s volcanic rock deposits. As recently as 100 million years ago, the Earth’s moon was a hotbed of volcanic activity. Evidence of that volatile time can still be found in the ancient ash and volcanic rock that’s scattered across the surface.

Using satellite imagery, the researchers identified tiny water droplets preserved inside glass beads that formed in the volcanic deposits. While water makes up a small fraction of each bead, its presence suggests there’s significantly more of it making up the Moon’s mantle.

Milliken and Li aren't the first scientists to notice water in lunar rocks. In 2008, volcanic materials collected from the Moon during the Apollo missions of 1971 and 1972 were revealed to contain the same water-flecked glass beads that the Brown scientists made the basis of their recent study. They took their research further by analyzing images captured across the face of the Moon and quickly saw the Apollo rocks represented a larger trend. "The distribution of these water-rich deposits is the key thing," Milliken said in a press statement. "They're spread across the surface, which tells us that the water found in the Apollo samples isn't a one-off. Lunar pyroclastics seem to be universally water-rich, which suggests the same may be true of the mantle."

The study challenges what we know about the Moon's formation, which scientists think occurred when a planet-sized object slammed into the Earth 4.5 billion years ago. "The growing evidence for water inside the Moon suggests that water did somehow survive, or that it was brought in shortly after the impact by asteroids or comets before the Moon had completely solidified," Li said. "The exact origin of water in the lunar interior is still a big question."

The findings also hold exciting possibilities for the future of space travel. NASA scientists have already considered turning the Moon into a water station for astronauts on their way to Mars. If water on the celestial body is really as abundant as the evidence may suggest, figuring out how to access that resource will definitely be on NASA's agenda.

[h/t CNN]

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ESA/ATG
The European Space Agency Needs Help Naming Its New Mars Rover
ESA/ATG
ESA/ATG

The European Space Agency is hosting a competition to find a snazzy new name for its ExoMars rover, Sky News reports. The rover will be deployed to Mars in 2020, so the winner would be playing a small role in the progress of space exploration.

At the contest's launch, British astronaut Tim Peake described Mars as a place where humans and robots will someday work together to search for evidence of life in our solar system. To this end, the ExoMars rover, which will land on Mars in 2021, will drill up to two meters into the planet’s soil and collect samples, the ESA notes. "The ExoMars rover is a vital part of this journey of exploration, and we're asking you to become part of this exciting mission and name the rover that will scout the Martian surface,” Peake said.

However, the agency is well aware of past public naming contests that have gone horribly wrong (we’re looking at you, Boaty McBoatface), so it’s rigged the rules to prevent such a spectacle. Instead of a public poll, suggestions will be submitted privately to the agency, which has created a panel of judges to choose the winning name.

The winner of the contest will also receive a trip to Stevenage, England, where they’ll get to see the Airbus facility where the rover is being pieced together. The contest is only open to citizens of the two dozen European countries that are partners in the ESA.

To enter, submit your name suggestion online before October 10, 2018, along with a brief explanation (under 150 words) of why your name should be chosen. Click the following PDF link to see the full terms and conditions [PDF].

[h/t Sky News]

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NASA, Getty Images
Watch Apollo 11 Launch
Vice President Spiro Agnew and former President Lyndon Johnson view the liftoff of Apollo 11
Vice President Spiro Agnew and former President Lyndon Johnson view the liftoff of Apollo 11
NASA, Getty Images

Apollo 11 launched on July 16, 1969, on its way to the moon. In the video below, Mark Gray shows slow-motion footage of the launch (a Saturn V rocket) and explains in glorious detail what's going on from a technical perspective—the launch is very complex, and lots of stuff has to happen just right in order to get a safe launch. The video is mesmerizing, the narration is informative. Prepare to geek out about rockets! (Did you know the hold-down arms actually catch on fire after the rocket lifts off?)

Apollo 11 Saturn V Launch (HD) Camera E-8 from Spacecraft Films on Vimeo.

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