Excitement builds as Pluto flyby nears, a decade after launch

Excitement builds as Pluto flyby nears, a decade after launch

Special to WorldTribune.com [CLICK ON IMAGE FOR HIGH RESOLUTION] There’s a near-perfect heart shape on Pluto’s rusty red surface which scientists are seeing for the first time as a piano-sized NASA spacecraft, New Horizons, hurtles toward the distant body on its way toward a historic flyby on July 14. … Pluto [was] once considered the […]

Where are all those high energy positrons coming from?

Where are all those high energy positrons coming from?

Special to WorldTribune.com [CLICK ON IMAGE FOR HIGH RESOLUTION, Ron Garan, STS-134 Crew, Expedition 28 Crew, NASA] Where did all these high energy positrons come from? The Alpha Magnetic Spectrometer (AMS-02) onboard the International Space Station (ISS) has been meticulously recording how often it is struck by both high energy electrons and positrons since 2011. […]