The Conversation

From dark gravity to phantom energy: what's driving the expansion of the universe?

Author: The Conversation USA

There are two broad ways to measure the expansion of the universe. One is based on the cosmic microwave background, shown here, along with our own galaxy viewed in microwave wavelengths.ESA, HFI & LFI consortia (2010)

There is something strange happening in the local universe, with galaxies moving away from each other faster than expected.

What...

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