X ray measurements at the South Atlantic Magnetic Anomaly

X ray microbursts and VLF chorus

X ray microscope/telescope test and alignment

X-ray astronomy

X-ray astronomy experiments from sounding rockets

X-ray bright points and the solar cycle dependence of emerging magnetic flux

X-ray CCD Sounding Rocket Observation of the North Polar Spur

X-ray emission from acoustically heated coronae

X-ray evidence for the supernova origin of the North Polar spur

X-ray experiment ASTRO-8

X-ray images of Puppis A and IC 443

X-ray Jet observations in coronal holes and evidence for MHD waves

X-ray morphology of the Perseus cluster

X-ray observations of the Cygnus Loop using a crystal spectrometer

X-ray optical properties of a Wolter Type I telescope for rocket application

X-ray scanning of overhead aurorae from rockets

X-ray spectrometer spectrograph telescope system

X-ray structure of the Puppis supernova remnant

X-ray studies of the Puppis-A supernova remnant

Xenopus laevis embryos can establish their spatial bilateral symmetrical body pattern without gravity