... Curiosity Before Mars: Seven Minutes of Terror . ... Ash and Lightning Above an Icelandic Volcano . ... Although the large ash plume was not unparalleled in its abundance, its location was particularly noticeable because it drifted across such well-populated areas. Star Cluster R136 Bursts Out . ... High Energy Stereoscopic System II . ... How fast is lightning? ... The above lightning stroke did not move too fast, however, for this extremely high time resolution video to resolve. ...