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What is El Niño?
A big El Niño is developing in 2015, say scientists. This NASA video explains El Niño and its impact on the marine food web.
November 5, 2015
Whoa! That’s a big galaxy cluster
The cluster's mass is a quadrillion times that of our sun - making it the most massive known cluster that far back in space and time.
November 4, 2015
Peeling back layers of a warm Neptune
Astronomers have discovered an immense hydrogen cloud streaming off a Neptune-sized exoplanet. The planet's atmosphere is evaporating, say scientists.
November 3, 2015
Antarctica’s ozone hole in 2015
The 2015 Antarctic ozone hole formed later than usual and had the fourth-largest area measured since the start of the satellite record in 1979.
November 3, 2015
Giant crack opens up in Wyoming
Not a danger to humans ... just a cool example of nature's power. The Crack, as locals call it, is now hundreds of yards (meters) long and still growing.
November 2, 2015
Scientists to monitor skies for UFOs
UFODATA wants to make UFO studies a more rigorous science and deploy a global network of automated surveillance stations to watch for UFOs full-time.
November 2, 2015
Heat in Persian Gulf to turn deadly?
A study suggests that, by the late 21st century, temperatures in the Persian Gulf might routinely edge above a tipping point for human survival. Wealthy areas might be able to adapt, poorer areas less able, the authors say.
November 2, 2015
Update: 2015 TB145 likely a dead comet
Last week heralded as largest known asteroid to pass Earth until 2027. Swept within 1.3 times the moon's distance on October 31. Now thought to be a comet!
October 31, 2015
Black hole flares from puzzling coronas?
A black hole may flare when its corona - a mysterious source of highly energetic particles - launches away from the hole at close to 20 percent of light speed.
October 30, 2015
Cassini flyby of Saturn moon Enceladus
Cassini has swept through the towering plume of ice, water vapor and organic molecules spewing from Saturn's moon, Enceladus. Seven key facts, here.
October 28, 2015
