Portside

What would the violence that Trump calls for against protesters actually look like? We know, because it's happened before.

We calculated the land area needed to supply the entire United States with solar power.

Steps include an apology for its ties to slavery, preference to applicants who are descendants of Georgetown’s slaves, renaming a building in honor of one of the slaves and creating an institute to study slavery. 

Reinforcements arrive as Native Americans protest a massive oil pipeline in North Dakota.

Lawrence O'Donnell explains why a protest by Native Americans in North Dakota reminds us of the history America always tries to forget.

CNN correspondent and Dream Corps founder Van Jones rants about the Trump #KoolAid. If you're not with the Donald, you're just plain evil. 

Bernie's said from the very beginning that no one person can alone accomplish what must be done to turn our country around. We all must do our part.

Seth Meyers takes a closer look at recent developments in Hillary Clinton's email about the relationship between the Clinton Foundation and access to the State Department.

Astronomers have discovered evidence of a small, rocky planet orbiting our nearest star. Could Proxima b ever sustain life? The little planet orbits our sun’s nearest neighboring star, Proxima Centauri.

A dynamic new memorial to lynching victims seeks to inspire local efforts to make the history of racial terror in America more visible and tangible, challenging each county where a racial terror lynching took place to permanently install a memorial to the victim.