خانه / Science / Astronomy (صفحه 30)

Astronomy

Cassini Makes First Ring-Grazing Plunge

This graphic shows the closest approaches of Cassini’s final two orbital phases. Ring-grazing orbits are shown in gray (at left); Grand Finale orbits are shown in blue. The orange line shows the spacecraft’s Sept. 2017 final plunge into Saturn. Image …

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Big Unknowns: what is dark matter

Matter as we know it accounts for less than 5% of the known universe – the rest remains something of a mystery. Photograph: ESO/VISTA/J. EMERSON / HANDOUT/EPA Click for a full size image Big Unknowns: what is dark matter? Matter …

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Learning to love our bugs

Click for a full size image Learning to love our bugs By Jerry Grillo The countless microorganisms that live inside us are more important than we realized as symbiotic partners in health Each of us is a mobile ecosystem teeming …

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