News tagged with observations

Video: The hunt is on for gravitational waves

Gravitational waves are tiny distortions of space-time caused by some of the most violent cosmic events such as colliding black holes. The observation of these 'ripples of space-time' requires exquisitely sophisticated new ...

dateDec 21, 2015 in Astronomy
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Plants show stress in thermal spectrum

Plants experience stress as a result of growing under non-optimal conditions. For example, too little water or low temperatures lead to clear responses such as wilting or defoliation. But exposure to milder forms of stress ...

dateDec 15, 2015 in Earth Sciences
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Developing a picture of the Earth's mantle

Deep inside the earth, seismic observations reveal that three distinct structures make up the boundary between the earth's metallic core and overlying silicate mantle at a depth of about 2,900 kilometers—an area whose composition ...

dateDec 14, 2015 in Earth Sciences
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