Astro pluse

What looks like a glowing cosmic ring is actually gravity revealing a distant galaxy. A massive foreground galaxy bends the background galaxy’s light, creating an Einstein ring when the alignment is especially precise. How strange would it be to watch this lensing happen in real time?

What if “empty” space isn’t quite empty? Around an extreme magnetar, magnetic fields become so powerful that quantum physics predicts they can change how light travels through vacuum. NASA’s IXPE measured unusually strong X-ray polarization from 1E 1547.0−5408, providing compelling evidence for this effect. What part of that idea is hardest to picture?

A magnetar can pack more than the Sun’s mass into a city-sized sphere. When its ultra-dense crust suddenly shifts, the star can unleash a violent burst of energy across space. What would a quake look like on an object this extreme?

some stars die by becoming incredibly small — not disappearing.
a neutron star can compress more than the sun’s mass into a sphere only about 12 miles wide. some race through interstellar gas fast enough to create enormous shock structures behind them.
deep space archives by astro pulse

the universe can literally bend what we see.
gravitational lensing can stretch a distant galaxy’s light into an almost perfect ring around a foreground galaxy. these einstein rings reveal how enormous masses reshape the path of light across billions of light-years.
deep space archives by astro pulse

This Tiny Star Has One of the Most Extreme Magnetic Fields in the Universe

A magnetar is a highly magnetized neutron star: an object only about 10–20 kilometers (6–12 miles) across that can contain roughly a Sun’s worth of mass.
Its magnetic field can reach extraordinary strengths, potentially around 10¹¹ tesla at the surface. For comparison, Earth’s magnetic field is only on the order of tens of microtesla.
These extreme magnetic environments can produce powerful X-ray and gamma-ray emission, while changes in the crust and magnetosphere can release enormous amounts of energy. NASA’s X-ray observatories have helped astronomers study these strange stellar remnants across the Milky Way.
If matter is compressed to neutron-star density, how different can the laws of physics become?

Star Explodes — But Its Neutron-Star Remnant Keeps Reshaping Space

A supernova does not necessarily mark the end of the story. In some cases, the explosion leaves behind a rapidly rotating neutron star called a pulsar. Its intense rotation and magnetic field can accelerate charged particles to extreme energies, creating a pulsar wind nebula.
Outside that energetic region, the original stellar explosion continues expanding through surrounding gas, producing a much larger supernova remnant filled with shock-heated material and complex emission filaments. X-ray, optical and radio observations allow astronomers to separate these overlapping structures.
The remarkable part is that the dead star can continue injecting energy into its environment long after the original explosion has faded.
How long do you think a stellar co**se can continue influencing its surroundings?