Seen broadside, they resembled companion planets through Galileo's weak lenses; later, seen edge on, they shrank to nothingness — an invisible sliver. (discovermagazine.com)
(Previous studies have identified six distant solar systems that include both a warm Jupiter and a large companion planet in a highly tilted orbit, the researchers note.) (sciencemag.org)
The inner four companion planets all measure less than fifty percent the size of Earth. (sciencedaily.com)