Thesemetalsareformedthroughfusionreactionsintheheartsofstars, thenexpelledwhen a stardiesin a supernovaexplosionOncereleasedintotheuniverse, theelementscanthencontinuethegreatcircleoflife, atleastfrom a startperspective.
Thediscoverywas a combinedeffortbyNASA's Testmission, anexoplanethuntingtelescopethatusesthetransitmethodtocollectdataonplanets, and a teamofresearchersatthe W.
M.
KeckObservatoryinHawaii.
Theyidentifiedtherockyplanetas a superearthbecauseithas a massofmorethan 1.5 Earthsand a radiusthat's roughly 1.4 timeslarger.
Aftertheexoplanetsoriginaldiscoverybytests, theteamthattheKeckObservatorywasabletomeasuretheplanet's massusing a customizedinstrumentthatcollectsinformationduringthetransitmethod.
Usingthehighresolutionextraspectrometerorhighres, astronomerscanmeasurethewobblein a starusingtheplanet's gravitationalpull.