Murphy

=super moon: the super moon was on saturday march 19 the orbit of the moon brought it closer to the earth than it has been in nearly 20 years. a full moon varies in size due to its elliptical orbit around the earth. -jessie=



black holes: what are they? black holes are the end point of stars 10 to 15 times more massive then the sun. if a star the big undergoes a supernova explosion it may leave a fairly big burned-out stellar remnant will collapse on its self. with no outward forces to oppose gravity, the remnant with cllapse on its self. the star evaentally collapses to the point of zero volume and infinite density. creating what is known as singularity around this region the gravity pull is so much that not even light could excape, this is what a black hole is

summary: why you should not look at the sun? f you look at the sun for more then 3 seconds you could permanently damage your retna, and your eyes would not send pain signals to your brain how dose an sundial work? a sun dial is used by puting it in the sun and the shadow goes to a cirtain place and is a cirtain length to tell you what time it is what is an equinox, its when the days and the nights are the same amount of time 12 hours and 12 hours