A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
|Type to find tags:|
|stellar-atmospheres× 5||chemistry× 5||
track and display the current time.
Questions about gas-giant planets in very close orbit to their parent star (closer than Mercury).
|electron× 5||element× 5||
Questions about Europa, a moon of Jupiter with a planet-wide ocean under a thick ice crust.
|explosion× 5||infrared× 5||
|refractor-telescope× 5||roche-limit× 5|
|red-dwarf× 5||solar-storm× 4||quantum-field-theory× 4||pole× 4|
|instruments× 4||kinematics× 4||messier-catalog× 4||
Questions regarding the future and ultimate fate of the Universe, including the heat death, Big Freeze, Big Rip, or Big Crunch.
about the lack of evidence for alien life, despite the growing evidence that suitable planets are reasonably plentiful.
Questions about the speed at which an object can go to a point at infinity while ending at rest.
Questions regarding matter at densities so high that gravitational contraction is countered by the Pauli exclusion principle.