mick laBriola

A visually striking collection of interstellar gas and dust is the focus of this week’s Hubble Picture of the Week. Named RCW 7, the nebula is located just over 5300 light-years from Earth in the constellation Puppis. Nebulae are areas of space that are rich in the raw material needed to form new stars. Under the influence of gravity, parts of these molecular clouds collapse until they coalesce into protostars, surrounded by spinning discs of leftover gas and dust. In the case of RCW 7, the protostars forming here are particularly massive, giving off strongly ionising radiation and fierce stellar winds that have transformed it into what is known as a H II region. H II regions are filled with hydrogen ions — where H I refers to a normal hydrogen atom, H II is hydrogen that has lost its electron. The ultraviolet radiation from the massive protostars excites the hydrogen, causing it to emit light and giving this nebula its soft pinkish glow. Here Hubble is studying a particular massive protostellar binary named IRAS 07299-1651, still in its glowing cocoon of gas in the curling clouds towards the top of the nebula. To expose this star and its siblings, this image was captured using the Wide Field Camera 3 in near-infrared light. The massive protostars here are brightest in ultraviolet light, but they emit plenty of infrared light which can pass through much of the gas and dust around them and be seen by Hubble. Many of the other, larger-looking stars in this image are not part of the nebula, but sit between it and our Solar System. The creation of an H II region marks the beginning of the end for a molecular cloud. Over only a few million years, the radiation and winds from the massive stars gradually disperse the gas — even more so as the most massive stars come to the end of their lives in supernova explosions. Only a fraction of the gas will be incorporated into new stars in this nebula, with the rest being spread throughout the galaxy to eventually form new molecular clouds.

Igor Fyodorovich Stravinsky (17 June [O.S. 5 June] 1882 – 6 April 1971) was a Russian composer and conductor with French citizenship (from 1934) and American citizenship (from 1945). He is widely considered one of the most important and influential composers of the 20th century and a pivotal figure in modernist music.

Born to a famous bass in Saint Petersburg, Russia, Stravinsky grew up taking piano and music theory lessons. While studying law at the University of Saint Petersburg, he met Nikolai Rimsky-Korsakov and studied under him until his death in 1908. Stravinsky met the impresario Sergei Diaghilev soon after, who commissioned the composer to write three ballets for the Ballets Russes‘s Paris seasons: The Firebird (1910), Petrushka (1911), and The Rite of Spring (1913), the last of which caused a near-riot at the premiere due to its avant-garde nature and later changed the way composers understood rhythmic structure.

Stravinsky’s compositional career is often divided into three periods: his Russian period (1913–1920), his neoclassical period (1920–1951), and his serial period (1954–1968). During his Russian period, Stravinsky was heavily influenced by Russian styles and folklore. Works such as Renard (1916) and Les noces (1923) drew upon Russian folk poetry, while compositions like L’Histoire du soldat (1918) integrated these folk elements with popular musical forms, including the tango, waltz, ragtime, and chorale. His neoclassical period exhibited themes and techniques from the classical period, like the use of the sonata form in his Octet (1923) and use of Greek mythological themes in works like Apollon musagète (1927), Oedipus rex (1927), and Persephone (1935). In his serial period, Stravinsky turned towards compositional techniques from the Second Viennese School like Arnold Schoenberg‘s twelve-tone technique. In Memoriam Dylan Thomas (1954) was the first of his compositions to be fully based on the technique, and Canticum Sacrum (1956) was his first to be based on a tone row. Stravinsky’s last major work was the Requiem Canticles (1966), which was performed at his funeral.

While many supporters were confused by Stravinsky’s constant stylistic changes, later writers recognized his versatile language as important in the development of modernist music. Stravinsky’s revolutionary ideas influenced composers as diverse as Aaron Copland, Philip Glass, Béla Bartók, and Pierre Boulez, who were all challenged to innovate music in areas beyond tonality, especially rhythm and form. In 1998, Time magazine listed Stravinsky as one of the 100 most influential people of the century. Stravinsky died of pulmonary edema on 6 April 1971 in New York City, having left six memoirs written with his friend and assistant Robert Craft, as well as an earlier autobiography and a series of lectures.

Messier 81 (also known as NGC 3031 or Bode’s Galaxy) is a grand design spiral galaxy about 12 million light-years away in the constellation Ursa Major. It has a D₂₅isophotal diameter of 29.44 kiloparsecs (96,000 light-years). Because of its relative proximity to the Milky Way galaxy, large size, and active galactic nucleus (which harbors a 70 million M_☉ supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy’s large size and relatively high brightness also makes it a popular target for amateur astronomers. In late February 2022, astronomers reported that M81 may be the source of FRB 20200120E, a repeating fast radio burst.

Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxyapproximately 12 million light-years away in the constellation Ursa Major. It is the second-largest member of the M81 Group, with the D₂₅ isophotal diameter of 12.52 kiloparsecs (40,800 light-years).

IC1871, part of the Soul Nebula also known as Sh2-199 and LBN667 is about 7500 light years distant in the constellation Cassiopeia. This is a crop of the central area for the Soul Nebula.

Harry Edward Nilsson III (June 15, 1941 – January 15, 1994), sometimes credited as Nilsson, was an American singer-songwriter who reached the peak of his success in the early 1970s. His work is characterized by pioneering vocal overdub experiments, a return to the Great American Songbook, and fusions of Caribbean sounds. Nilsson was one of the few major pop-rock recording artists to achieve significant commercial success without performing major public concerts or touring regularly.

Born in Brooklyn, Nilsson moved to Los Angeles as a teenager to escape his family’s poor financial situation. While working as a computer programmer at a bank, he grew interested in musical composition and close-harmony singing and was successful in having some of his songs recorded by various artists, such as the Monkees. In 1967, he debuted on RCA Victor with the LP Pandemonium Shadow Show, followed by a variety of releases that included a collaboration with Randy Newman (Nilsson Sings Newman, 1970) and the original children’s story The Point! (1971).

He created the first remix album, Aerial Pandemonium Ballet, in 1971, and recorded the first mashup song (“You Can’t Do That”) in 1967. His most commercially successful album, Nilsson Schmilsson (1971), produced the international top 10 singles “Without You” and “Coconut“. His other top 10 hit, “Everybody’s Talkin’” (1968), was featured prominently in the 1969 film Midnight Cowboy. A version of Nilsson’s “One“, released by Three Dog Night in 1969, also reached the U.S. top 10.

During a 1968 press conference, The Beatles were asked what their favorite American group was and answered “Nilsson”. Sometimes called “the American Beatle“, he soon formed close friendships with John Lennon and Ringo Starr, joining them in the Hollywood Vampires drinking club. He and Lennon produced one collaborative album, Pussy Cats (1974). After 1977, Nilsson left RCA, and his record output diminished. In response to Lennon’s 1980 murder, he took a hiatus from the music industry to campaign for gun control. For the rest of his life, he recorded only sporadically. In 1994, Nilsson died of a heart attack while in the midst of recording what became his last album, Losst and Founnd (2019).

The craft of Nilsson’s songs and the defiant attitude he projected remain touchstones for later generations of indie rock musicians.^[5] Nilsson was voted No. 62 in Rolling Stone‘s 2015 list of the “100 Greatest Songwriters of All Time“, where he was described as “a pioneer of the Los Angeles studio sound” and “a crucial bridge” between 1960s psychedelia and the 1970s singer-songwriter era. The RIAA certified Nilsson Schmilsson and Son of Schmilsson (1972) as gold records, indicating over 500,000 units sold each. He earned two Grammy Awards (for “Everybody’s Talkin'” and “Without You”).