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How monarchs find Mexico without a map
Researchers say they’ve cracked the secrets of the monarch butterfly’s internal compass.
April 20, 2016
New images of Ceres craters
New Dawn spacecraft images of two craters on the dwarf planet Ceres, Haulani and Oxo. Haulani looks like a fresh impact into Ceres' surface.
April 20, 2016
New tree of life doesn’t look as you’d imagine
The tree of life, which depicts how life has evolved and diversified on the planet, is getting a lot more complicated.
April 19, 2016
Eastern monarch butterflies at risk of extinction, scientists say
Populations of the charismatic orange and black monarch butterfly have plummeted. Will they be extinct in 20 years?
April 18, 2016
Gravity lens reveals dwarf dark galaxy
A detailed analysis of an image of the gravitational lens SDP.81 has indicated the presence of a dark dwarf galaxy, four billion light-years away.
April 17, 2016
Why are these black hole jets aligned?
The only way for this alignment to exist is if the supermassive black holes in this part of space are all spinning in the same direction.
April 16, 2016
Spiders with super-fast mousetrap mouths
In the forests of South America and New Zealand, trap-jaw spiders have mouths clamp down on their quarry like a mousetrap, at lightning speeds.
April 15, 2016
Kepler is OK! Spacecraft recovered from emergency
Kepler mission engineers still aren’t sure why the planet-hunting spacecraft went into Emergency Mode last week.
April 12, 2016
Stars strip atmospheres of super-Earths
The planets are 2-10 times as massive as Earth. They orbit near their stars and receive some 650 times the radiation that Earth receives from our sun.
April 11, 2016
Another wave of bird extinctions in the Americas?
Several bird species are taking their final bows on the global evolutionary stage, and winking out. The situation in northeast Brazil is particularly dire.
April 11, 2016
