Dishwalla is an American alternative rock band from Santa Barbara, California, United States.
 The band's name comes from a Hindi term for a person providing satellite TV to a neighborhood.
 In a "Vox" interview, lead guitarist Rodney Browning Cravens claimed the band took the name out of a "Wired" magazine article.
 The band is best known for their 1996 hit song "Counting Blue Cars."
Civil twilight is the brightest phase of twilight, when the sun is less than 6° below the horizon.
The Belt of Venus, Venus's Girdle, twilight wedge, or antitwilight arch is an atmospheric phenomenon visible shortly before sunrise or after sunset, during civil twilight, when a pinkish glow extending roughly 10–20° above the horizon surrounds the observer.
Anchor & Braille is the recording alias for American singer and songwriter Stephen Christian, known for fronting the alternative rock band Anberlin, before its dissolution in 2014.
 Originally conceived as a side project for Christian, Anchor & Braille is now his primary vehicle for releasing music.
 Christian has described Anchor & Braille as a collaborative effort, having recorded with musicians such as Aaron Marsh of Copeland, Micah Tawlks, and Kevin Daily of Civil Twilight.
 Since its beginning, Christian has released three studio albums under this name, Felt in 2009, The Quiet Life in 2012, and Songs for the Late Night Drive Home in 2016.
Polar stratospheric clouds or PSCs, also known as nacreous clouds ( , from "nacre", or mother of pearl, due to its iridescence), are clouds in the winter polar stratosphere at altitudes of 15000 - .
 They are best observed during civil twilight when the sun is between 1 and 6 degrees below the horizon as well as in winter and in more northerly latitudes.
 They are implicated in the formation of ozone holes.
 The effects on ozone depletion arise because they support chemical reactions that produce active chlorine which catalyzes ozone destruction, and also because they remove gaseous nitric acid, perturbing nitrogen and chlorine cycles in a way which increases ozone destruction.
Civil Twilight is the debut studio album of Civil Twilight.
 It was officially released 6 April 2010 in South Africa and on 13 April 2010 in the United States and United Kingdom.
 It features many alternative rock and classical influences.
 Many have drawn parallels between the band's debut and the early work of U2 along with Muse.
 Steven McKellar's vocals have been compared to that of Radiohead's Thom Yorke and Jeff Buckley.
 During its original independent release by the band in 2007, the album was originally titled "Human".
Dusk occurs at the darkest stage of twilight, or at the very end of astronomical twilight after sunset and just before night.
 Pre-dusk, during early to intermediate stages of twilight, there may be enough light in the sky under clear-sky conditions to read outdoors without artificial illumination, but at the end of civil twilight, when the earth rotates to a point at which the center of the sun is at 6° below the local horizon, artificial illumination is required to read outside.
 The term "dusk" usually refers to astronomical dusk, or the darkest part of twilight before night begins.
Civil Twilight is a four-piece rock band from Cape Town, South Africa, consisting of the brothers Andrew and Steven McKeller, plus Richard Wouters, and Kevin Dailey.
 They are signed to Wind-up Records, and have released three studio albums — their self-titled debut album, "Civil Twilight" (2010), "Holy Weather" (2012), and "Story of an Immigrant" on July 10th 2015.
Holy Weather is the second album by South African alternative rock band Civil Twilight.
 Written and recorded in the years following their debut album, Civil Twilight, the album was released 26 March 2012 in both the United States and other regions including the United Kingdom, Canada and South Africa.
 The album has received generally positive reviews, with many comparing the outfit to early-generation U2.
Earth's shadow or Earth shadow (also sometimes known as the dark segment) is the shadow that Earth itself casts onto its atmosphere and into outer space, toward the antisolar point.
 The shadow's fringe is often visible from the planet's surface as a dark and diffused band in a clear sky near the horizon.
 This atmospheric phenomenon can be seen twice during civil twilight (both dusk and dawn), rising after sunset and setting before sunrise.

Question: What type of group does Dishwalla and Civil Twilight have in common?
Answer: rock band