關於Aboutl3billionyearsa的百科

• Aboutl.3billionyearsago,twomassiveblackholeshiteachothe...

• 問題詳情：Aboutl.3billionyearsago,twomassiveblackholeshiteachotherandformedanewone.Theenergysetfreebythecollision(撞擊)createdaripple(波紋)inthespace-timestructureandspreadoutwardingravitationalwaves(引力波).   Then,onSeptember14,2015,agroupofscient...
• 2021-01-3124120