Day: September 30, 2021

The Hydrogen Clouds of M33

Posted on Posted in NASA, TweetTagged , , Leave a comment

Gorgeous spiral galaxy M33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as the Triangulum Galaxy and lies a mere 3 million light-years away. Sprawling along loose spiral arms that wind toward the core, M33’s giant HII regions are some of the largest known stellar nurseries, sites of the formation of short-lived but very massive stars. Intense ultraviolet radiation from the luminous massive stars ionizes the surrounding hydrogen gas and ultimately produces the characteristic red glow. To highlight the HII regions in this telescopic image, broadband data used to produce a color view of the galaxy were combined with narrowband data recorded through a hydrogen-alpha filter, transmitting the light of the strongest hydrogen emission line. Close-ups of cataloged HII regions appear in the sidebar insets. Use the individual reference number to find their location within the Triangulum Galaxy. For example, giant HII region NGC604 is identified in an inset on the right and appears at position number 15. That’s about 4 o’clock from galaxy center in this portrait of M33. via NASA https://ift.tt/3okq9MP

Wikipedia article of the day for September 30, 2021

Posted on Posted in Tweet, WikipediaTagged , , , Leave a comment

Wikipedia article of the day is Killing of Muhammad al-Durrah. Check it out: Article-Link Summary: The killing of Muhammad al-Durrah took place in the Gaza Strip on 30 September 2000, during the widespread protests and riots of the Second Intifada. Jamal al-Durrah and his 12-year-old son Muhammad were filmed by Talal Abu Rahma, a Palestinian television cameraman freelancing for France 2, as the two were caught in crossfire between Israeli and Palestinian forces. The footage shows the pair crouching behind a concrete cylinder, the boy crying and the father waving, then a burst of gunfire and dust, with the boy slumping over. Some of the footage was broadcast in France with a voiceover from Charles Enderlin, who told viewers that the al-Durrahs had been the target of Israeli fire, killing the boy. This interpretation has been questioned by critics and by the Israel Defense Forces, which retracted an initial apology. After an emotional public funeral, Muhammad was hailed throughout the Muslim world as a martyr, with the scene appearing on postage stamps.