... Tonight's Sky . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... space flight . ... Astronomy for Kids . ... Gift Center . ... т??Elephant trunksт?? in space . Monstrous pillars of dense gas and dust line up along the edges of a cosmic hole. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...