<p>After more than twenty years of observations, Tamara Davis has revealed that dark energy, the mysterious force driving the expansion of the universe may not be constant.</p>

After more than twenty years of observations, Tamara Davis has revealed that dark energy, the mysterious force driving the expansion of the universe may not be constant.

Dark energy – not necessarily constant

The Science Show gives Australians unique insights into the latest scientific research and debate, from the physics of cricket to prime ministerial biorhythms.

Science

Natural Sciences

The Science Show gives Australians unique insights into the latest scientific research and debate, from the physics of cricket to prime ministerial biorhythms.

The Science Show&nbsp;gives Australians unique insights into the latest scientific research and debate, from the physics of cricket to prime ministerial biorhythms.

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Dark energy – not necessarily constant

Dark energy – not necessarily constant