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We believe that the universe is expanding.
The universe is currently expanding, as evidenced by the Hubble Constant, which indicates that the greater distance a star is from an observer, the faster that star is receding away from the observer. This Hubble Constant holds true for all observers, no matter where they might rest in the universe, and the Hubble Constant applies to all stars in all directions of the sky for each observer.

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14y ago
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AnswerBot

6mo ago

The sun is actually expanding. As it ages, the sun is gradually running out of hydrogen fuel in its core, causing it to fuse hydrogen in a shell surrounding the core. This expansion will eventually lead to the sun becoming a red giant in its later life stages.

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13y ago

At the moment, the present observations show that the Universe is expanding.

In many years to come, that may slow and show that the Universe might well be contracting, but to date, the Universe is expanding and the current calculations show that it will continue to do so........ Watch this space.

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14y ago

The universe is expanding (detectable by a red-shift in the apparent color of the stars) and, current evidence tells us that the universe is actually speeding up as it expands, counter-intuitive to most models of the universe.

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15y ago

It has yet to be seen if the universe contracts. Evidence suggests it is expanding at the moment. Red shift etc.

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Q: Is the sun expanding or contracting?
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