Astronomers recently confirmed that a mysterious object, dubbed 3I/ATLAS came from interstellar space, blowing through the ...

The discussion emphasizes that certainty, not doubt, determines impurity. If there is no absolute certainty that the materials are contaminated with nijs (impure) water, the items remain pure. The ...

Some gas giants, for example, are so large that thermonuclear fusion of deuterium occurs, and the object becomes a substar called a brown dwarf and therefore not a planet. This limit has been ...