Learn about the 13 brightest nebulae in the night sky, including when to photograph them and why they make the best targets for beginners.
On this particular evening, after shooting the sunset, we checked Stargazer and saw that around 3-4 am, many of the planetary elements would be aligning around the plume at the Halema’uma’u crater. Once we were ready for shooting, a cloud deck had rolled over the entire summit of ...
It is possible that after its close approach to the sun, C/2022 E3 (ZTF) will continue on its current trajectory and leave our planetary system, returning to the depths of the solar system for thousands or even millions of years before its next close approach to the sun. However, it is...
Nebulae and Gas Clouds Stars begin coalescing inside vast, dense molecular clouds of hydrogen galaxies, susceptive to gravitational perturbations. As atoms accumulate more mass via collisions, their core density increases. When sufficient pressure exists, nuclear fusion ignites and a star is born. Nucle...
The motion of planetary nebulae between Messier 87 and Messier 86 indicates that the two galaxies are moving toward each other. M87 has a supermassive black hole at its center. It is classified as a type-cD galaxy, or a supergiant D class galaxy, that has a large halo of stars as well...
Byanon326436— On Mar 21, 2013 Doesn't gravity have to do with the formation of solar system too? Byanon110833— On Sep 13, 2010 thanks, found the site (wiseGEEK) very useful. Anyone have any ideas about how i could use this info and make like a little cartoon strip about it? I ...