Another thing we thought was water on Mars actually isn’t water

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Back in 2011, NASA scientists announced they had spotted compelling evidence that water sometimes still flowed on Mars. Now, researchers are backpedaling on these watery conclusions. 

To NASA’s credit, the 2011 evidence looked quite convincing. Images captured by the Mars Reconnaissance Orbiter — a NASA satellite orbiting Mars — showed telltale dark streaks running down various mountains, valleys, and craters on Mars. They look strikingly similar to features formed on Earth’s surface by flowing water.

But, according to a new study in the journal Nature Geoscience, it turns out these dark streaks are made mostly of “granular flow” — sand and perhaps rocks falling downhill — rather than water flowing down valleys during the warmer Martian summers.  Read more…

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View More Another thing we thought was water on Mars actually isn’t water

Earth just had its 2nd-warmest October, and 2017 could be the 2nd-warmest year on record

President Donald Trump may not acknowledge this, but October was the second-warmest such month on record, worldwide, according to new data released by NASA. 
There is now about a 94 percent likelihood that 2017 will rank as the second-warmest ye…

View More Earth just had its 2nd-warmest October, and 2017 could be the 2nd-warmest year on record

Calling all space enthusiasts: Use planets to tell the time with this solar system watch

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If you keep up with NASA at all, you’ll know that they recently made a kind of huge discovery: Trappist-1, a solar system older than ours with seve…

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NASA took the 1st, astonishing aerial photos of the giant new Antarctic iceberg

Each Antarctic spring and summer, NASA flies special aircraft over the continent to keep tabs on how global warming is altering the landscape. The agency does the same in the Arctic each summer, for a project known as Operation IceBridge. 
Just …

View More NASA took the 1st, astonishing aerial photos of the giant new Antarctic iceberg

The most important weather satellite you’ve never heard of launches to space Tuesday

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After billions of dollars in cost overruns and delays, NASA is planning to launch one of the most important weather satellites ever early Tuesday morning.

The Joint Polar Satellite System-1, or JPSS-1, satellite — which will be invaluable for improving forecasting, detecting lost sailors, aiding firefighters, and other applications — is expected to blast off from Vandenberg Air Force Base in California at 1:47 a.m. PT, or 4:47 a.m. ET, aboard a United Launch Alliance Delta II rocket. 

The JPSS-1 is the first in the National Oceanic and Atmospheric Administration’s (NOAA) next-generation of four polar-orbiting satellites that provide the majority of data streamed into weather forecasting models.  Read more…

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View More The most important weather satellite you’ve never heard of launches to space Tuesday

NASA wants the internet to nickname a distant object 1 billion miles past Pluto

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Alright, folks. NASA needs our help. 

The space agency is asking people on the internet — yes, that means you — to help it select a fun nickname for a pretty dryly named but still important object: (486958) 2014 MU69.

MU69 is an object — or possibly two objects — floating in the Kuiper belt, Pluto’s part of space which is filled with small objects left over from the dawn of the solar system 4.5 billion years ago.

Scientists need a nickname for MU69 because it’s going to get a lot of attention in the coming years. 

On Jan. 1, 2019, NASA’s New Horizons spacecraft — which flew past Pluto in July 2015 — will fly by MU69, taking an up-close look at a world (or worlds) never seen in detail before. Read more…

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NASA created a playlist of creepy space sounds

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NASA dropped a spooky mixtape filled with interplanetary music of our cosmos, with such great hits like “Kepler: Star KIC7671081B Light Curves Waves to Sound,” “Plasmaspheric Hiss,” “Jupiter Sounds 2001,” and “Chorus Radio Waves within Earth’s Atmosphere.” Read more…

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