... Subject: IAA Lecture, Events at WWT and Dungannon, RIA lecture, Galway A.F., ISS . ... Supernovae come in various forms, with different causes, but in general terms theyѓЉrepresent eitherѓЉthe explosive death of a giant star, or a very violent episode in the life of a binary star pair. Visually, they are the greatest explosions we see in the universe, with the exploding star sometimes becoming as bright as the combined light of all the other hundreds of millions of stars in its parent galaxy! ...

PROGRAM SUMMATION ! Summation forwards and backwards of 1/n^2 IMPLICIT NONE INTEGER :: N, NMAX CHARACTER :: ANSWER REAL :: SUM_SP, TEMP DOUBLE PRECISION :: SUM_DP INTEGER, PARAMETER :: QUAD = SELECTED_REAL_KIND(20,1000) REAL(KIND=QUAD) :: SUM_QUAD SUM_SP = 0.0 SUM_DP = 0.0D0 SUM_QUAD = 0.0_QUAD 1 WRITE(*,'(A)', ADVANCE='NO') 'How many numbers do you wish to add? ... 10) THEN WRITE(*,*) 'Too few numbers!' GO TO 1 ELSE IF (NMAX .GT. 100000000) THEN WRITE(*,*) 'Too many numbers!' ...