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novae

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One-Of-A-Kind Helium Nova Shot Never-Before-Seen Oxygen-Rich Bullets At 30 Million Kilometers Per HourImage from HST showing the bipolar outflow of material ejected by the helium nova V445 Puppis. The progenitor binary star system is just about visible in the centre of the outflow. Also visible are the 'bullets' of gas that were shot out at either end of the outflow. Image taken in 2013 with the F502N filter on Hubble’s Wide Field Camera 3.

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One-Of-A-Kind Helium Nova Shot Never-Before-Seen Oxygen-Rich Bullets At 30 Million Kilometers Per HourImage from HST showing the bipolar outflow of material ejected by the helium nova V445 Puppis. The progenitor binary star system is just about visible in the centre of the outflow. Also visible are the 'bullets' of gas that were shot out at either end of the outflow. Image taken in 2013 with the F502N filter on Hubble’s Wide Field Camera 3.
space-iconAstronomy

One-Of-A-Kind Helium Nova Shot Never-Before-Seen Oxygen-Rich Bullets At 30 Million Kilometers Per Hour

clock-iconJuly 22, 2026

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First Proof Mysterious Radio Pulses Come From Cataclysmic Variables Represents “Astronomical Rosetta Stone”Artists’ impression of the white dwarf binary ASKAP J1745-5051. The smaller, dense white dwarf star is accreting material from the larger, but less dense red dwarf star. The interaction of their magnetic fields and the heat from the material accretion creates signals in radio and X-ray light frequencies.

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First Proof Mysterious Radio Pulses Come From Cataclysmic Variables Represents “Astronomical Rosetta Stone”Artists’ impression of the white dwarf binary ASKAP J1745-5051. The smaller, dense white dwarf star is accreting material from the larger, but less dense red dwarf star. The interaction of their magnetic fields and the heat from the material accretion creates signals in radio and X-ray light frequencies.
space-iconAstronomy

First Proof Mysterious Radio Pulses Come From Cataclysmic Variables Represents “Astronomical Rosetta Stone”

clock-iconJune 1, 2026

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This Dead Star Is Producing A Beautiful Shock Wave Current Models Can’t ExplainThe white dwarf RXJ0528+2838 sits at the heart of multicolored bow shock nebula, but lacks the characteristics known to create this. Different colors represent hydrogen, nitrogen and oxygen

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This Dead Star Is Producing A Beautiful Shock Wave Current Models Can’t ExplainThe white dwarf RXJ0528+2838 sits at the heart of multicolored bow shock nebula, but lacks the characteristics known to create this. Different colors represent hydrogen, nitrogen and oxygen
space-iconAstronomy

This Dead Star Is Producing A Beautiful Shock Wave Current Models Can’t Explain

clock-iconJanuary 12, 2026
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6 Astronomical Events To Look Forward To If You Live Long EnoughMore opportunities to see Jupiter and Saturn in a backyard telescope at the same time is just one of the things to look forward to later in this century for those who live long enough.

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6 Astronomical Events To Look Forward To If You Live Long EnoughMore opportunities to see Jupiter and Saturn in a backyard telescope at the same time is just one of the things to look forward to later in this century for those who live long enough.
space-iconAstronomy

6 Astronomical Events To Look Forward To If You Live Long Enough

clock-iconDecember 26, 2025
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For Only The Second Recorded Time, Two Novae Are Visible With The Naked Eye At OnceTwo naked-eye novae can be seen in this area of the sky, V462 Lupi near delta Lupi (left), V572 Velorum below mu Velorum (right).

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For Only The Second Recorded Time, Two Novae Are Visible With The Naked Eye At OnceTwo naked-eye novae can be seen in this area of the sky, V462 Lupi near delta Lupi (left), V572 Velorum below mu Velorum (right).
space-iconAstronomy

For Only The Second Recorded Time, Two Novae Are Visible With The Naked Eye At Once

clock-iconJuly 1, 2025
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Powerful Black Hole Jets Might Be Triggering Unrelated Nova ExplosionsAn artist’s concept looks down into the core of the galaxy M87, which is just left of centre and appears as a large blue dot. A bright blue-white, narrow and linear jet of plasma transects the illustration from centre left to upper right. It begins at the source of the jet, the galaxy’s black hole, which is surrounded by a blue spiral of material. At lower right is a red giant star that is far from the black hole and close to the viewer. A bridge of glowing gas links the star to a smaller white dwarf star companion immediately to its left. Engorged with infalling hydrogen from the red giant star, the smaller star exploded in a blue-white flash, which looks like numerous diffraction spikes emitted in all directions. Thousands of stars are in the background.]

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Powerful Black Hole Jets Might Be Triggering Unrelated Nova ExplosionsAn artist’s concept looks down into the core of the galaxy M87, which is just left of centre and appears as a large blue dot. A bright blue-white, narrow and linear jet of plasma transects the illustration from centre left to upper right. It begins at the source of the jet, the galaxy’s black hole, which is surrounded by a blue spiral of material. At lower right is a red giant star that is far from the black hole and close to the viewer. A bridge of glowing gas links the star to a smaller white dwarf star companion immediately to its left. Engorged with infalling hydrogen from the red giant star, the smaller star exploded in a blue-white flash, which looks like numerous diffraction spikes emitted in all directions. Thousands of stars are in the background.]
space-iconAstronomy

Powerful Black Hole Jets Might Be Triggering Unrelated Nova Explosions

clock-iconSeptember 27, 2024
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Hubble Spots Stellar Explosion Unlike Any Ever Seen Beforearticle image

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Hubble Spots Stellar Explosion Unlike Any Ever Seen Beforearticle image
space-iconSpace and Physics

Hubble Spots Stellar Explosion Unlike Any Ever Seen Before

clock-iconApril 27, 2015