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Posts by EarthSky Voices

Antarctica’s Brunt Ice Shelf photographed in October 2011 from NASA’s DC-8 research aircraft during an Operation IceBridge flight. Michael Studinger/NASA
Science Wire | Mar 31, 2015

Shrinking of Antarctic ice shelves is accelerating

If all the ice on Antarctica melted into the ocean, global sea level would rise about 200 feet, roughly the height of a 20-story building. Could this happen?

Stream in Zackenberg drainage. Imge credit: Mikkel Tamstrof
Science Wire | Mar 30, 2015

Greenland glacier melt increases mercury discharge

As glaciers melt, streams carry more mercury into the ocean, increasing risk of mercury poisoning in humans and wildlife in Greenland and in adjacent coastal countries.

View larger. |  Nova Sag number 2 via Tom Wildoner.
Science Wire | Mar 29, 2015

Nova Sagittarii observation, March 29

The brightness of this unusual nova has gone up and down and now back up again. EarthSky friend Tom Wildoner tells you how to see the nova before it’s gone!

Science Wire | Mar 27, 2015

India’s Mars probe has fuel for extended mission

India’s Mars Orbiter Mission (MOM) was expected to end on March 24. But it turns out that the probe could have another 6 months of life left in it.

Science Wire | Mar 27, 2015

Curiosity rover detects nitrogen on Mars

The discovery adds to the evidence that ancient Mars was habitable for life.

Science Wire | Mar 26, 2015

Super salamander nearly ate our ancestors

The thing that got us off the hook? A big hot interception 200 million years ago.

Very few people today live a true hunter-gatherer lifestyle – and Paleo diets likely oversimplify what would have been on the table many millennia ago. Photo credit: Thiery, CC BY-NC
Science Wire | Mar 23, 2015

Real Paleo Diet: early hominids ate just about everything

Hominids didn’t spread across Africa, and then the entire globe, by utilizing just one foraging strategy or sticking to a precise mix of carbohydrates, proteins and fats

What is the bright spot of Ceres? Not long till we find out. Image credit: NASA
Science Wire | Mar 18, 2015

Dawn breaks over Ceres … and perhaps reveals signs of habitability

The Dawn spacecraft is about to start its investigation of Ceres. Suggestions of icy volcanism have led to speculation that the dwarf planet could potentially be habitable.

Blogs | Jan 23, 2015

Little auks adapt to warming Arctic

This little bird, that looks kind of like a flying penguin, has got scientists rethinking how polar ecosystems are changing in our warming world.

Science Wire | Dec 31, 2014

Amazing 44-second meteor might be space debris reentry

Video of an impressive and slow meteor seen over Puerto Rico on December 28. It might be a Falcon 9 rocket body falling from orbit.