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This is an archive of AGU's GeoSpace blog through 1 July 2020. New content about AGU research can be found on Eos and the AGU newsroom.

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11 December 2018

Penguins! From space

Today at 2 pm EST, AGU is holding a press conference titled “Penguins! From space” at Fall Meeting 2018. New research will be discussed about how studying satellite images of penguin poop, or guano, in west Antarctica can give scientists an idea of how penguin diets changed over decades or centuries. To help you get a picture of the penguin research, check out this beautiful comic, created by JoAnna Wendel.

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24 October 2018

Researchers describe likely origin of perfect lines on Saturn’s moon

Strange features on Saturn’s moon Dione resembling lines of latitude on a map could be the result of space dust crashing onto Dione’s surface, according to a new study. The streaks have puzzled scientists because of their orientation and straightness, but a new study finds these features, deemed linear virgae, likely originated from low-velocity impacts of space debris from within the Saturn system or beyond.

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18 October 2018

Sounds of a Solar Storm

High school students listening to audio tracks of NOAA satellite data have identified the sounds of solar storms buffeting Earth’s magnetic field. The results of a UK-led citizen science project suggest that the approach of converting physical data into sound signals could help NOAA and other scientists make sense of massive amounts of data from satellites and other instruments.

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3 May 2018

Breathing lunar dust could pose health risk to future astronauts

Future astronauts spending long periods of time on the Moon could suffer bronchitis and other health problems by inhaling tiny particles of dust from its surface, according to new research. A new study finds simulated lunar soil is toxic to human lung and mouse brain cells. Up to 90 percent of human lung cells and mouse neurons died when exposed to dust particles that mimic soils found on the Moon’s surface.

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16 March 2018

New study finds space radiation is increasingly more hazardous

As future missions look to travel back to the moon or even to Mars, new research cautions that the exposure to radiation is much higher than previously thought and could have serious implications on both astronauts and satellite technology.

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25 September 2017

New study may help identify areas with and without accessible water ice on Mars

New findings reveal deposits on Mars that could be interpreted to be ice-rich may contain little or no ice at all, based on an analysis of radar sounder data for Meridiani Planum—an area on the planet’s equator being explored by the Opportunity rover. This new insight into Meridiani Planum may help identify areas with and without accessible water ice, a resource critical to future human exploration and possible colonization of Mars.

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19 September 2017

Researchers identify ‘substantial’ amount of Mercury’s water ice

Researchers have identified three new craters and four small-scale cold traps on Mercury filled with surface ice and suspect the planet may harbor many smaller patches of exposed ice too small to observe directly. The newly observed ice makes a substantial contribution to the amount of exposed ice thought to exist on Mercury’s surface, which the researchers estimate to be approximately 3,400 square kilometers (1,313 square miles), or just smaller than Rhode Island in size.

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17 April 2017

Why can we see and hear meteors at the same time?

Light travels nearly a million times faster than sound. But for thousands of years, humans have reported hearing some meteors as they pass overhead, puzzling scientists for decades. Now, a new study puts forth a simple explanation for the phenomenon.

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3 March 2017

New technique can improve particle warnings that protect astronauts

In a new study, scientists from NASA and the National Center for Atmospheric Research find the warning signs of one type of space weather event can be detected tens of minutes earlier than with current forecasting techniques – critical extra time that could help protect astronauts in space.

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5 July 2016

Odd behavior of Jovian moon dust could inform future space missions, search for life

New research into the movements of dust around Jupiter’s four largest moons could help scientists searching for life in our solar system, according to a new study. This moon dust around Jupiter could give scientists clues about the composition of the surface of its satellites.

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