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Editors of EarthSky

Did a forgotten meteor have a deadly, icy double-punch?

When a huge meteor crashed into the Pacific Ocean 2.5 million years ago it may have plunged the world into the Ice Ages, a new study suggests.

Whales fall through the research net

Global populations of marine mammals are being observed far too little, making protection difficult.

Can turmeric help fight viruses?

Curcumin, found in turmeric, stopped the potentially deadly Rift Valley Fever virus from multiplying in infected cells in animals.

World’s most powerful digital camera opens eye, begins hunt for dark energy

The light it captures might hold within it the answer to one of the biggest mysteries in physics – why the expansion of the universe is speeding up.

How bees decide what to be

Johns Hopkins researchers link reversible 'epigenetic' marks to behavior patterns.

Susan Hovorka on carbon capture and storage

Susan Hovorka said, "If people want to reduce emissions of CO2 - while enjoying the benefits of fossil fuels - instead of emitting, you can capture and store."

X-rays unravel mysterious degradation of a Van Gogh painting

Supposedly protective varnish caused discolouration – possible implications for other paintings?

Study of giant viruses shakes up tree of life

A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued.

How many killer asteroids are out there?

NASA survey suggests roughly 4,700 potentially hazardous asteroids. So far, an estimated 20 to 30 percent of these objects have been found.

How does a spider spin a web between two trees?

If you look up in a tree, you might see a spider web that spans a distance of a meter - several feet - or more. How do they do that?