Search the Wikipedia for "Unsolved problems in astronomy". One such problem is, how does the Sun's corona heat up to a temperature that is much higher than the photosphere. Although there are some ideas how this happens, the details aren't quite clear yet.
'Dark matter' and 'dark energy' have not been observed or proven yet.
'Dark matter' and 'dark energy' have not been observed or proven yet.
Astronomers are unable to prove the existence of dark matter & dark energy.In fact astronomers have not yet proved most astronomical effects. Worm holes, black holes, or even the big bang. But proof in theories is almost impossible. The longer a theory stays intact is a sign of it's "proof" but some "sane" theories have been proven to be incorrect - "Einsteins biggest blunder".No scientist will say they have proved anything "astronomical" as it is almost impossible to prove anything without physical interaction.It's a bit like saying "I can prove that dogs live in the next street" based on only hearing their barks and not actually going there.
There are several speculative ideas in astronomy, which can't currently be proved - nor completely disproved. Some of these include wormholes; parallel universes; the possibility of time travel and faster-than-light travel.
A Hypothesis is something that you set out to test to prove or disprove. A Lemma is something that has already been proved that you use to help prove something else.
The word proven is an adjective. It descrbes something that has been proved.
Astronomers make predictions about celestial events based on theories and observations. Some predictions that have been proved include the existence of black holes and the existence of exoplanets. Some predictions that have been disproved include certain theories about the behavior of dark matter and the nature of certain astronomical phenomena.
We can get information from any portion of the electromagnetic spectrum provided we use the correct "listening" devices; that is the entire range, Radio, microwave, infrared, visible, ultra violet, xray, and gamma rays
You cannot prove a negative. In order to prove that something is NOT real you first have to try to prove that it is real and fail. This has been known since the time of Aristotle. So the only proof that you can have of something not being real is a lack of proof of its existence. Not a convincing argument.
'Bound' means unable to move 'Gagged' means unable to speak because a person's mouth has been covered with a cloth or something of that nature. 'Tied up' means a rope, wire or other material is constricting someone. Basically the whole sentence means someone who is unable to speak or move because he/she is tied up and unable to speak because something has been placed in his/her mouth
'Bound' means unable to move 'Gagged' means unable to speak because a person's mouth has been covered with a cloth or something of that nature. 'Tied up' means a rope, wire or other material is constricting someone. Basically the whole sentence means someone who is unable to speak or move because he/she is tied up and unable to speak because something has been placed in his/her mouth
he was punished by god to prove his faith. when people say they feel like job, they mean that they are underpressure to preform and prove they can do without something that has been taken away