The Constitution Annotated online now includes updated content under Article III, Section 2, Clause 1 discussing justiciability.
Article III, Section 2, Clause 1
The Judicial Power shall extend to all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties made, or which shall be made, under their Authority;—to all Cases affecting Ambassadors, other public Ministers and Consuls;—to all Cases of admiralty and maritime Jurisdiction;—to Controversies to which the United States shall be a Party;—to Controversies between two or more States;—between a State and Citizens of another State;—between Citizens of different States,—between Citizens of the same State claiming Lands under Grants of different States, and between a State, or the Citizens thereof, and foreign States, Citizens or Subjects.
ArtIII.S2.C1.1.6 Ripeness Doctrine
ArtIII.S2.C1.1.6.1 Ripeness Doctrine: Overview
ArtIII.S2.C1.1.7 Mootness Doctrine
ArtIII.S2.C1.1.7.1 Mootness Doctrine: Overview
ArtIII.S2.C1.1.7.2 Early Mootness Doctrine
ArtIII.S2.C1.1.7.3 Modern Mootness Doctrine
ArtIII.S2.C1.1.7.3.1 Modern Mootness Doctrine: Introduction
ArtIII.S2.C1.1.7.3.2 Modern Mootness Doctrine: General Criteria of Mootness
ArtIII.S2.C1.1.7.3.3 Exceptions to Mootness
ArtIII.S2.C1.1.7.3.3.1 Exceptions to Mootness: Introduction
ArtIII.S2.C1.1.7.3.3.2 Exceptions to Mootness: Voluntary Cessation Doctrine
ArtIII.S2.C1.1.7.3.3.3 Exceptions to Mootness: Capable of Repetition, Yet Evading Review
ArtIII.S2.C1.1.7.3.3.4 Exceptions to Mootness in the Criminal Context
ArtIII.S2.C1.1.7.3.3.5 Special Mootness Rules in the Class Action Litigation Context