Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director: James ...
Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director: James ...
WENDY FREEDMAN is staring down the universe. For 40 years, she has been digging into the biggest secrets of the cosmos, patiently whittling down uncertainties to find the value of a number that ...
The Hubble constant tells us how fast the universe is expanding. But pinning down a number is tricky
The universe has been expanding ever since the Big Bang. But there is a problem. We don't know exactly how fast it is expanding because there are tiny discrepancies in one of the most fundamental and ...
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