News tagged with particle mass

Nanodust particles in the interplanetary medium

Dust particles smaller than about a wavelength of light are abundant in our solar system, created by collisions between asteroids and from the evaporation of comets. As they scatter sunlight, these particles ...

dateMar 09, 2015 in Astronomy
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Coronal mass ejections at Mars

Looking across the Mars landscape presents a bleak image: a barren, dry rocky view as far as the eye can see. But scientists think the vista might once have been quite different. It may have teemed with water ...

dateSep 24, 2014 in Space Exploration
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How the sun caused an aurora this week

On the evening of Aug. 20, 2014, the International Space Station was flying past North America when it flew over the dazzling, green blue lights of an aurora. On board, astronaut Reid Wiseman captured this ...

dateAug 22, 2014 in Space Exploration
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SDO spots a summer solar flare

The sun emitted a mid-level solar flare, peaking at 12:20 p.m. EDT on July 8, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful ...

dateJul 08, 2014 in Space Exploration
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Mid-level solar flare seen by NASA's SDO

The sun emitted a mid-level solar flare, peaking at 6:34 p.m. EDT on March 12, 2014, and NASA's Solar Dynamics Observatory, or SDO, captured an image of it. Solar flares are powerful bursts of radiation. ...

dateMar 13, 2014 in Space Exploration
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Image: Antares and sunspots at sunrise

An Orbital Sciences Corporation Antares rocket is seen on the launch pad at NASA's Wallops Flight Facility, Wallops Island, Va., on Jan. 8, 2014. Dark blemishes can be clearly seen on the face of the sun. ...

dateJan 17, 2014 in Space Exploration
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Weighing nanoparticles at the attogram scale

MIT engineers have devised a way to measure the mass of particles with a resolution better than an attogram—one millionth of a trillionth of a gram. Weighing these tiny particles, including both synthetic ...

dateJan 13, 2014 in Nanophysics
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