Is the question multiple choice?
I was a bit lost in the wording but I think I understand now...
When the lunar eclipse is in action, the earth's umbra thing will start covering the moon, making it possible to see it. When the earth's umbra completely covers the moon it will either have a red, brown or even sometimes a yellow look to it.
I think this was correct but I'm not sure about that. If this was wrong I'm really sorry and hope someone can give you the right answer for this.
Taiwan is the East Asian country that is currently threatened by the expansion of its desert in its western region.
Happy Studying! ^-^
Answer:
- the first direct detection of gravitational waves came in 2015
- gravitational waves are predicted to travel through space at the speed of light
- the existence of gravitational waves is predicted by Einstein's general theory of relativity
Explanation:
The gravitational waves are waves that are produced by the objects, and depending on the mass of the object they can be stronger or weaker in their influence.
These waves have been in the minds of the scientists for more than a century now, with Einstein predicting them in his theory of relativity. The only problem with these waves was that there was no proof of them. The proof finally came in 2015 when these waves were detected from the first time, with two black holes to be thanked for that as they were the source of them.
These waves are predicted to be able to travel with the speed of light through space when they have small amplitudes.