Astrophysics.
Algol paradox: In some binary star systems the partners seem to have different ages, even though they are thought to have formed at the same time..
Russell's paradox is the most famous of the logical or set-theoretical paradoxes.
Also known as the Russell-Zermelo paradox, the paradox arises within na\xefve set theory by considering the set of all sets that are not members of themselves..
Olbers' paradox, in cosmology, paradox relating to the problem of why the sky is dark at night.
If the universe is endless and uniformly populated with luminous stars, then every line of sight must eventually terminate at the surface of a star..
Olbers's paradox, also known as the dark night sky paradox, is an argument in astrophysics and physical cosmology that says that the darkness of the night sky conflicts with the assumption of an infinite and eternal static universe..
Olbers's paradox says that because the night sky is dark, at least one of these three assumptions must be false.
Olbers's paradox, also known as the dark night sky paradox, is an argument in astrophysics and physical cosmology that says that the darkness of the night sky conflicts with the assumption of an infinite and eternal static universe.
At the heart of the paradox lies the fraught relation in modern cosmology between the living world and observership, and the physical universe.
The multiverse paradox became a beacon in Hawking’s quest to re-envision this relationship by developing a fully quantum perspective on the cosmos.
The paradox is that a static, infinitely old universe with an infinite number of stars distributed in an infinitely large space would be bright rather than dark. To show this, we divide the universe into a series of concentric shells, 1 light year thick.
This paradox was discussed in 1823 by the German astronomer Heinrich Wilhelm Olbers, and its discovery is widely attributed to him.
The problem was considered by earlier investigators and can be traced back to Johannes Kepler, who, in 1610, advanced it as an argument against the notion of a limitless universe containing an infinitenumber of stars.
Cosmological paradox involving gravity
Theoretical paradox resulting from time travel
