Number 23 (Story #2), February 28, 1991 by Phillip F. Schewe and Ben Stein|
AN X-RAY SURVEY OF THE LARGE MAGELLANIC CLOUD (LMC) by the ROSAT satellite has revealed 45 individual x-ray sources, 15 of which were never seen before. The ROSAT observations are part of the first-ever all-sky survey at x- ray wavelengths with a true imaging telescope. Among previous x-ray satellites, EXOSAT and the Einstein Observatory were imaging devices but, in that mode, only looked at individual sources. (Nature 14 Feb. 1991.) In the same issue of Nature, members of the ROSAT team also published the first soft x-ray images of the moon.