Kesan tenaga gelap ditemui pada tahun 1998 tetapi ahli fizik masih tidak tahu apa itu. Lebih buruk lagi, kewujudannya mempersoalkan teori umum relativiti Albert Einstein - asas fizik moden. Pemburuan identiti gelap en...
Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up. The effects of dark energy were discovered in 1998 but physicists still don't kno
