Curiosity captures stunning views of a changing Mars landscape

For the past year, NASA's Curiosity Mars rover has been traveling through a transition zone from a clay-rich region to one filled with a salty mineral called sulfate. While the science team targeted the clay-rich region and ...

How embryo cells gain independence

It happens in the first hours after fertilization: The cells of the early embryo begin to independently produce proteins, the building blocks for cells and organs. Their own, uniquely composed genetic material serves as the ...

Hubble remains in safe mode, NASA team investigating

NASA is continuing to investigate why the instruments in the Hubble Space Telescope recently went into safe mode configuration, suspending science operations. The instruments are healthy and will remain in safe mode while ...

Rattlesnake rattles trick human ears

Rattlesnakes increase their rattling rate as potential threats approach, and this abrupt switch to a high-frequency mode makes listeners, including humans, think they're closer than they actually are, researchers report August ...

Rescuing the Integral spacecraft: No thrust? No problem

A year ago tomorrow, a failure on the Integral spacecraft meant it fired its thrusters for likely the last time. In the days since, the spacecraft in Earth orbit has continued to shed light on the violent gamma ray universe, ...

Study shows survival mechanism for cells under stress

New research reveals how cancer cells endure stress and survive. Publishing in Molecular Cell, an international research team identified mechanisms that human and mouse cells use to survive heat shock and resume their original ...

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