,A GRAVITA;NAL WAVE IS A RIPPLE 9 SPACE"T XF A /RET*+ & SQUEEZ+ ( ! FABRIC ( SPACE T RADIATES \TW>D AT ! SPE$ ( LIE1 B 2C !Y >E UNIMAG9ABLY W1K3 BY ! "T A WAVE F A CATACLYSM ON ! F> SIDE ( ! UNIV]SE R1*ES ,E>?1 X *ANGES ! L5G? ( A #D-KILOMETRE DETECTOR >M BY AB A ?\S&? ( ! WID? ( A PROTON4 ,ON #AD ,SEPTEMB] #BJAE1 ! ,LAS] ,9T]F]OMET] ,GRAVITA;NAL-,WAVE ,OBS]VATORY HE>D "O ANYWAY A *IRP F TWO COLLID+ BLACK HOLES & OP5$ AN 5TIRELY NEW S5SE = A/RONOMY4 ,! PR$IC;N ,E9/E9 DIDN'T Q 2LIEVE ,G5]AL RELATIV;Y SAYS MASS CURVES SPACE"T1 & :5 MASS A3EL]ATES1 ! CURVATURE PROPAGATES \TW>D Z A WAVE ANALOG\S TO H[ A3EL]AT+ *>GES RADIATE LILY TALK$ HMF \ ( X1 & ! PHYSICS COMMUN;Y SP5T DECADES >GU+ :E!R ! WAVES 7 R1L OR A COORD9ATE >TIFACT4 ,! F/ PRO( CAME 9DIRECTLY3 9 #AIGD1 ,RUSSELL ,HULSE & ,JOSEPH ,TAYLOR F.D A B9>Y PULS> TWO NEUTRON />S ORBIT+ EA* O!R ^: ORBIT 0 DECAY+ EXACTLY Z FA/ Z G5]AL RELATIV;Y PR$ICT$ X WD LOSE 5]GY TO GRAVITA;NAL RADIA;N4 ,!Y N"E SAW ! WAVES2 !Y WAT*$ !M C>RY ! 5]GY AWAY4 ,X WON !M ! #AIIC ,NOBEL ,PRIZE4 ,! *IRP T BROKE ! SIL;E ,,GW#AEJIAD ,DIRECT DETEC;N TOOK A MA*9E ( ALM ABSURD S5SITIV;Y4 ,,LIGO'S TWO DETECTORS 9 ,HAN=D1 ,WA%+TON & ,LIV+/ON1 ,L\ISIANA >E #D-KILOMETRE ;,L-%AP$ LAS] 9T]F]OMET]S3 MIRRORS HUNG ON VIBRA;N ISOLATORS1 LAS] B1MS SPLIT & RECOMB9$ S T A PASS+ WAVE'S /RA9 "<@9#AJ_<1 A FRAC;NAL L5G? *ANGE ( "O "P 9 A SEXTILLION"> %[S UP Z AN 9T]F];E %IFT4 ,ON #AD ,SEPTEMB] #BJAE "DS 9TO A NEWLY UPGRAD$ OBS]V+ RUN BO? DETECTORS CAU MASSES1 SPIRAL+ 9TO EA* O!R #A4C BILLION LIS AWAY1 M]G+ 9TO A S+LE @9#FB-SOL>-MASS BLACK HOLE & RADIAT+ ! REMA9+ @9#C SOL> MASSES Z PURE GRAVITA;NAL 5]GY BRIEFLY \T%9+ E /> 9 ! OBS]VABLE UNIV]SE 9 GRAVITA;NAL P[] AL"O4 ..> ,! WAVE=M A RIS+ 8*IRP0 T SWEEPS UP 9 FREQU5CY Z ! OBJECTS SPIRAL FA/] IS UNMI/AKABLE1 & X C 2 LI/5$ TO3 ! VIDEO ABV PLAYS ! R1L DETEC;N1 ! S.D ( SPACE"T 2+ RUNG L A BELL BY A COLLI.N T HAPP5$ :5 MULTICELLUL> LIFE 0 "Y ON ,E>?4 ,! 4COV]Y WON ! #BJAG ,NOBEL ,PRIZE = ,,LIGO PI"O]S ,RA9] ,WEISS1 ,B>RY ,B>I%1 & ,KIP ,?ORNE & X LAUN*$ GRAVITA;NAL-WAVE A/RONOMY3 A WAY TO OBS]VE ! UNIV]SE T DOESN'T USE LI.> ,:AT GRAVITA;NAL WAVES SEE T LILY OPAQUE UNIV]SE C>RY+ 9=MA;N NO TELESCOPE C R1*3 "9 ,B9>Y BLACK HOLES ,,GW#AEJIAD OP5$ ! CATALOGUE2 DOZ5S ( M]G]S >E N[ CATALOGU$ EA* OBS]V+ RUN BY ,,LIGO1 ,VIRGO "<,ITALY">1 & ,,KAGRA "<,JAPAN"> "9 ,NEUTRON-/> M]G]S ,,GW#AGJHAG "<#BJAG"> PRODUC$ ! F/ MULTI-MESS5G] EV5T3 GRAVITA;NAL WAVES PLUS A GAMMA-RAY BUR/ PLUS A KILONOVA T =G$ GOLD1 PLAT9UM & URANIUM DIRECT EVID;E H1VY ELE;TS >E MADE 9 ^! COLLI.NS "9 ,! /O*A/IC BACKGR.D PULS>-TIM+ >RAYS "<,N,A,N,O,GRAV & "PN]S"> ANN\NC$ EVID;E 9 #BJBC = A P]SI/5T HUM ( GRAVITA;NAL WAVES1 LIKELY F SUP]MASSIVE BLACK HOLE B9>IES "?\T ! UNIV]SE "9 ,! F/ SECOND ( ! ,BIG ,BANG LILI] ?AN #CHJ1JJJ YE>S1 B GRAVITA;NAL WAVES F 9FLA;N CD1 9 PR9CIPLE1 C>RY DIRECT E*OES ( ! UNIV]SE'S F/ 9/ANT SEE ZEPTOV]SE = H[ ! SMALLE/ SIGNALS 2CAME ! GALAXIES ,:AT'S NEXT ! 9/RU;TS ,,LIGO_/,VIRGO_/,,KAGRA 3T9UE COORD9AT$ OBS]V+ RUNS1 CATALOGU+ M]G]S BY ! HUNDR$S4 ,,LISA " W MOVE ! TE*NIQUE TO SPACE ?REE SPACECRAFT =M+ A TRIANGLE ( #B4E-MILLION-KILOMETRE >MS1 S5SITIVE TO ! L[-FREQU5CY RUMBLE ( SUP]MASSIVE BLACK HOLE M]G]S & GALACTIC B9>IES4 ,& PROPOS$ 9/RU;TS L ! ,E9/E9 ,TELESCOPE & ,COSMIC ,EXPLOR] AIM = T5FOLD S5SITIV;Y HE>+ NE>LY E /ELL>-MASS BLACK HOLE M]G] 9 ! OBS]VABLE UNIV]SE4 ,SEE AL "9 ZEPTOV]SE ,,LIGO'S /RA9 IS XF A ZEPTO-SCALE SIGNAL "9 SMALLE/ ?+S "E M1SUR$ ! 4PLACE;T RECORD "9 NEUTR9O ! O!R NON-OPTICAL S5SE A/RONOMY J GA9$ "9 HI/ORY ( PHYSICS ,REF];ES - ,A2OTT ET ;AL4 "<,,LIGO_/,VIRGO"> 8,OBS]VA;N ( ,GRAVITA;NAL ,WAVES F A ,B9>Y ,BLACK ,HOLE ,M]G]10 ,PHYS4 ,REV4 ,LETT4 #AAF1 #JFAAJB "<#BJAF"> - ,HULSE @& ,TAYLOR B9>Y PULS> 5]GY LOSS "<#AIGE">2 ,NOBEL ,PRIZE #AIIC - ,NOBEL ,PRIZE 9 ,PHYSICS #BJAG ,WEISS1 ,B>I%1 ,?ORNE1 = ,,LIGO_/,,GW#AEJIAD - ,,GW#AGJHAG MULTI-MESS5G] PAP]S "<#BJAG"> - ,N,A,N,O,GRAV COLLABORA;N NANOH]TZ BACKGR.D EVID;E "<#BJBC">