mick laBriola

Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms. But small, irregular galaxies form stars too. In fact dwarf galaxy IC 2574 shows clear evidence of intense star forming activity in its telltale reddish regions of glowing hydrogen gas. Just as in spiral galaxies, the turbulent star-forming regions in IC 2574 are churned by stellar winds and supernova explosions spewing material into the galaxy’s interstellar medium and triggering further star formation. A mere 12 million light-years distant, IC 2574 is part of the M81 group of galaxies, seen toward the northern constellation Ursa Major. Also known as Coddington’s Nebula, the lovely island universe is about 50,000 light-years across, discovered by American astronomer Edwin Coddington in 1898.

Robert Nesta Marley OM (6 February 1945 – 11 May 1981) was a Jamaican singer, songwriter, and guitarist. Considered one of the pioneers of reggae, he fused elements of reggae, ska and rocksteady and was renowned for his distinctive vocal and songwriting style. Marley increased the visibility of Jamaican music worldwide and became a global figure in popular culture. He became known as a Rastafarian icon, and he infused his music with a sense of spirituality. Marley is also considered a global symbol of Jamaican music and culture and identity and was controversial in his outspoken support for democratic social reforms. Marley also supported the legalisation of cannabis and advocated for Pan-Africanism.

Born in Nine Mile, Jamaica, Marley began his career in 1963, after forming the group Teenagers with Peter Tosh and Bunny Wailer, which became the Wailers. In 1965, they released their debut studio album, The Wailing Wailers, which included the single “One Love“, a reworking of “People Get Ready“. It was popular worldwide and established the group as a rising figure in reggae. The Wailers released 11 more studio albums, and after signing to Island Records, changed their name to Bob Marley and the Wailers. While initially employing louder instrumentation and singing, they began engaging in rhythmic-based song construction in the late 1960s and early 1970s, which coincided with Marley’s conversion to Rastafari. Around this time, Marley relocated to London, and the group embodied their musical shift with the release of the album The Best of The Wailers (1971).

Bob Marley and the Wailers began to gain international attention after signing to Island and touring in support of the albums Catch a Fire and Burnin’ (both 1973). Following their disbandment a year later, Marley carried on under the band’s name. The album Natty Dread (1974) received positive reviews. In 1975, following the global popularity of Eric Clapton‘s version of Marley’s “I Shot the Sheriff“, Marley had his international breakthrough with his first hit outside Jamaica, a live version of “No Woman, No Cry“, from the Live! album. This was followed by his breakthrough album in the United States, Rastaman Vibration (1976), which reached the Top 50 of the Billboard Soul Charts. A few months later, Marley survived an assassination attempt at his home in Jamaica, which was believed to be politically motivated. He permanently relocated to London, where he recorded the album Exodus, which incorporated elements of blues, soul, and British rock and had commercial and critical success. In 1977, Marley was diagnosed with acral lentiginous melanoma; he died in May 1981, shortly after baptism into the Ethiopian Orthodox Church. Fans around the world expressed their grief, and he received a state funeral in Jamaica.

The greatest hits album Legend was released in 1984 and became the best-selling reggae album of all time. Marley also ranks as one of the best-selling music artists of all time, with estimated sales of more than 75 million records worldwide. He was posthumously honoured by Jamaica soon after his death with a designated Order of Merit by his nation. In 1994, Marley was posthumously inducted into the Rock and Roll Hall of Fame. Rolling Stone ranked him No. 11 on its list of the 100 Greatest Artists of All Time. and No. 98 on its list of the 200 Greatest Singers of All Time. His other achievements include a Grammy Lifetime Achievement Award, a star on the Hollywood Walk of Fame, and induction into the Black Music & Entertainment Walk of Fame.

Natalie Maria Cole (February 6, 1950 – December 31, 2015 LA,CA) was an American singer, songwriter, and actress. She was the daughter of singer and jazz pianist Nat King Cole. She rose to prominence in the mid-1970s, with the release of her debut album Inseparable (1975), along with the song “This Will Be (An Everlasting Love)“, and the album’s title track. Its success led to her receiving the Grammy Award for Best New Artist at the 18th Annual Grammy Awards, for which she became the first African-American recipient as well as the first R&B act to win the award. The singles “Sophisticated Lady” (1976), “I’ve Got Love on My Mind“, and “Our Love” (1977) followed.

After releasing several albums, she departed from her R&B sound and returned as a pop singer on the 1987 album Everlasting, along with her cover of Bruce Springsteen‘s “Pink Cadillac“. In the 1990s, she sang traditional pop by her father, resulting in her biggest success, Unforgettable… with Love, which was certified 7× platinum by the Recording Industry Association of America (RIAA). Unforgettable… with Love won the Grammy Award for Album of the Year, for which Cole became the first African-American woman to win the award.

Throughout her lifetime, Cole received nine Grammy Awards, was nominated for a Primetime Emmy Award, and sold over 30 million records worldwide. She was awarded the Howie Richmond Hitmaker Award from the Songwriters Hall of Fame in 1999, and has been posthumously inducted into the National Rhythm & Blues Hall of Fame (2021), and received a star on the Hollywood Walk of Fame.

A supernova and its host galaxy are the subject of today’s NASA/ESA Hubble Space Telescope Picture of the Week. The galaxy in question is LEDA 132905, which is situated in the constellation Sculptor. Even at over 400 million light-years away, LEDA 132905’s spiral structure is faintly visible, as are patches of bright blue stars.

The bright white dot directly in the centre of the image, between the bright centre of the galaxy and its faint left edge, is a supernova named SN 2022abvt. SN 2022abvt was discovered in late 2022, and Hubble observed the explosion about two months later. This image was constructed from data collected to study Type Ia supernovae, which occur when the exposed core of a dead star ignites in a sudden, destructive burst of nuclear fusion. Researchers are interested in this type of supernova because they can be used to measure precise distances to other galaxies.

The Universe is a big place, and supernova explosions are fleeting. How is it possible to be in the right place at the right time to catch a supernova when it happens? Today, most supernovae are discovered by robotic telescopes that continuously scan the night sky. But some are still found the old-fashioned way, by careful observers who take repeated images of the sky and search for changes. SN 2022abvt was spotted by the Asteroid Terrestrial-impact Last Alert System, or ATLAS. As the name suggests, ATLAS was designed to track down the faint, fast-moving signals from asteroids close to Earth. In addition to searching out asteroids, ATLAS also keeps tabs on objects that brighten or fade suddenly, like supernovae, variable stars and galactic centres powered by hungry black holes.

[Image Description: In the exact centre a supernova is seen as a small but bright blue dot. It lies atop a spiral galaxy, close to the glowing centre and next to some bright patches of blue stars in the galaxy. A small number of more minor galaxies are visible around the comparatively large spiral as small glowing discs, while further distant galaxies are seen as mere orangish spots and smudges, all on a black background.]