Ever since the expansion of the universe was discovered, or almost, the question has plagued astronomers. How fast is this expansion continuing today? Because observations and theories do not give the same answer. Today, the Hubble Space Telescope offers extra precision.
It should be remembered that one of the main reasons for the existence of this instrument was the accuracy of the measurement. Efforts since the 1970s have aimed to develop a tool capable of solving. . Since 1912, exactly. We can find both of them in us Inside only In the distance, thanks to the Hubble Space Telescope, up to about 80 million .. Because Seabeats, Cosmic markers for a long time, a kind of fixed meter
The first series of Seabed observations were made when Hubble was launched in the 1990s. With the main purpose of measuring the distances of galaxies closest to us. In the early 2000s, efforts With 10% accuracy. 72 plus or minus 8 kilometers (km / h / mbc) per megaporsec.Rewarded. They were able to deduct a value
Which value is correct?
To refine this value, researchers added new cameras to the space telescope. With the idea of achieving 1% accuracy. One idea in particular led to collaboration Supernova, H0, dark energy level equation (SH0ES).
The new results, released today by researchers, are based on a sample of twice as many cosmic markers. They also incorporate an updated analysis of past data. In total, 42 supernovae – known to have witnessed Hubble a Per year, approximately … – also useful for determining distances in the universe. Astronomers, with the size of their model, estimate that only one chance in a million is possible “From the Unfortunate Draw”. Also give the value of the Hubble constant as about 73 km / s / mbc. Exactly 73.04 +/- 1.04 km / s / Mpc.
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