Interstellar Visitor May Have Scrambled Our Solar System
The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...
New Scientist17h
How to see all the solar system’s planets in the night sky at once
All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...
Astronomy18h
Does a comet’s period change because it loses mass every time it nears the Sun?
Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.