Radial velocity Radial velocity The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point. That is, the radial velocity is the component of the object's velocity that points in the direction of the radius connecting the object and the point. In astronomy, the point is usually taken to be the observer on Earth, so the radial velocity then denotes the speed with which the object moves away from or approaches the Earth. In astronomy, radial velocity is often measured to the first order of approximation by
What a Time to Be Alive and Future premiered the album on Beats 1 on OVO Sound's "OVO Sound Radio" show on September 20, 2015, and weeks after it was released on the iTunes Store and Apple Music. The Summer Sixteen Tour by Drake was made to support this mixtape. "What a Time to Be Alive" received generally positive reviews from music critics. The album received a normalized metascore of 70 out of 100 on the review aggregate website Metacritic based on 24 critics. "Billboard" described Drake and Future's chemistry as expected and said "Future deals with personal demons that he tries, and fails, to drown