APOD - Portrait of NGC 281

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2017 September 30

Portrait of NGC 281
Image Credit & Copyright: Eric Coles and Mel Helm

Explanation: Look through the cosmic cloud cataloged as NGC 281 and you might miss the stars of open cluster IC 1590. Still, formed within the nebula that cluster's young, massive stars ultimately power the pervasive nebular glow. The eye-catching shapes looming in this portrait of NGC 281 are sculpted columns and dense dust globules seen in silhouette, eroded by intense, energetic winds and radiation from the hot cluster stars. If they survive long enough, the dusty structures could also be sites of future star formation. Playfully called the Pacman Nebula because of its overall shape, NGC 281 is about 10,000 light-years away in the constellation Cassiopeia. This sharp composite image was made through narrow-band filters, combining emission from the nebula's hydrogen, sulfur, and oxygen atoms in green, red, and blue hues. It spans over 80 light-years at the estimated distance of NGC 281.

Tomorrow's picture: supersonic green machine

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
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Price Resigns From Trump Cabinet Amid Private Jet Investigations

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Price Resigns From Trump Cabinet Amid Private Jet Investigations HHS Secretary Tom Price, who earned a reputation in the House as a budget hawk critical of government waste, resigned Friday after President Trump criticized him for chartering flights on private jets. Read this story

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APOD - Puppis A Supernova Remnant

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2017 September 29

Puppis A Supernova Remnant
Image Credit & Copyright: Don Goldman

Explanation: Driven by the explosion of a massive star, supernova remnant Puppis A is blasting into the surrounding interstellar medium about 7,000 light-years away. At that distance, this colorful telescopic field based on broadband and narrowband optical image data is about 60 light-years across. As the supernova remnant (upper right) expands into its clumpy, non-uniform surroundings, shocked filaments of oxygen atoms glow in green-blue hues. Hydrogen and nitrogen are in red. Light from the initial supernova itself, triggered by the collapse of the massive star's core, would have reached Earth about 3,700 years ago. The Puppis A remnant is actually seen through outlying emission from the closer but more ancient Vela supernova remnant, near the crowded plane of our Milky Way galaxy. Still glowing across the electromagnetic spectrum Puppis A remains one of the brightest sources in the X-ray sky.

Tomorrow's picture: light-weekend

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< | Archive | Submissions | Index | Search | Calendar | RSS | Education | About APOD | Discuss | >

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
NASA Web Privacy Policy and Important Notices
A service of: ASD at NASA / GSFC
& Michigan Tech. U.

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Torres, David Gilmour, Protomartyr, More

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Torres, On Her New Album And The Power Of Relentless Hope Anyone who's seen Torres perform live (or listened to her 2015 sophomore Sprinter) knows what a confrontational force she is. It's like watching storm clouds rise and darken, captivated by their beauty while knowing that at any moment they could swirl out of control and turn into a full-blown cyclone. Mackenzie Scott, the creative voice behind Torres, channels all this tension - the uncertain moments between containment and chaos - into her third full-length, Three Futures. Read The Stories, Hear The Music All Songs Considered What's The Meaning Of Life? Ask Protomartyr Protomartyr doesn't make music for the casual listener. Over the course of four full-length albums, the Detroit-based band has produced a collection of lyrically dense, deeply philosophical (and usually very loud) songs that grapple with some of life's thorniest questions: What does it mean to be human? What is truth? What is the nature of good and evil? Protomartyr lead singer and lyricist Joe Casey walks us through some of the thorny questions behind the band's new album, Relatives In Decent, track by track. Read this story All Songs TV David Gilmour Plays 'Run Like Hell,' Live At Pompeii The Pink Floyd guitarist performed the song, from the 1979 album The Wall, in a stunning concert at the ancient amphitheater in Pompeii, Italy, offering a rare thrill to see him stretch out (for more than a minute) on the song's singular opening riff. Watch The Video Tiny Desk Dawg Yawp: Tiny Desk Concert Welcome the wonderful world of Dawg Yawp, the musical concoction of Rob Keenan and Tyler Randall, where drones and toy pianos are likely to collide with heavy metal electronics and a well-placed melody. Watch The Tiny Desk Performance All Songs Considered 10 Brand-New Albums We're Listening To This Weekend Welcome to fall, where everything is pumpkin spice, scarves are a necessary fashion accessory and, oh, all of your favorite artists who didn't release albums in the spring suddenly make a mad dash for your ears. We're here to help - not with the pumpkin spice, that's definitely on your own terms - but with the brand-new albums that we, the NPR Music staff, are listening to this weekend. Read The List, Hear The Music

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