9 billion years ago 4 billion years ago Present T I M E Hubble witnesses a cosmic tug of war Hubble has detected the presence of dark energy in the young Universe. It appears that the cosmic "tug of war" between the pull of dark matter and the push of dark energy began at least 9 billion years ago, well before dark energy gained the upper hand and began accelerating the expansion of the Universe. Hubble witnesses a cosmic tug of war Hubble has detected the presence of dark energy in the young Universe. It appears that the cosmic "tug of war" between the pull of dark matter and the push of dark energy began at least 9 billion years ago, well before dark energy gained the upper hand and began accelerating the expansion of the Universe. 9 billion years ago 4 billion years ago Present T I M E DARK ENERGY DARK MATTER DARK MATTER DARK MATTER DARK ENERGY DARK ENERGY

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Page 1: Hubble witnesses a cosmic tug of warimgsrc.hubblesite.org › hvi › uploads › image_file › image... · Hubble witnesses a cosmic tug of war Hubble has detected the presence

9 billion years ago 4 billion years ago Present

T I M E

Hubble witnesses a cosmic tug of war

Hubble has detected the presence of dark energy in the young Universe. Itappears that the cosmic "tug of war"between the pull of dark matter and thepush of dark energy began at least 9 billionyears ago, well before dark energy gainedthe upper hand and began accelerating the expansion of the Universe.

Hubble witnesses a cosmic tug of war

9 billion years ago 4 billion years ago Present

T I M E

DARKENERGY

DARKMATTER

DARKENERGY