... Above, false-color x-ray images from the Chandra Observatory reveal details of this remnant pulsar's x-ray bright nebula along with emission from a spectacular jet of high-energy particles. Aurora Over Cape Cod . ... Active pillars of colorful aurora were captured dancing over a serenely smooth and nearly colorless Cape Cod Bay last month. ... The unusual red colors in the aurora slightly reflect off the ocean inlet. ... It is still not known why the Sun's light is missing some colors. ...