The supernova explosion is a very violent celestial event that usually occurs at the end of a star's life cycle. It releases so much energy which can even outshine entire galaxies for a short time. The "shock breakout" is the earliest electromagnetic radiation event following a supernova...
Don’t confuse a nova with a supernova, a final, titanic explosion that destroys some dying stars, Hounsell said. In a nova event, the dwarf star remains intact, sending the accumulated material hurtling into space in a blinding flash. The cycle typically repeats itself over time, a process...
A supernova is a massive star explosion that occurs when a star burns through its fuel at the end of its lifespan, resulting in a brilliant burst of fiery plasma in vibrant colors radiating with the brightness of a hundred million suns. As described in the journal Nature, the team used N...
The American space agency NASA says a huge star explosion is expected to light up the night sky later this year. NASA describes it as a “once-in-a-lifetime” event.美国航天局NASA表示,预计今年晚些时候会有一次巨大的恒星爆炸,将照亮夜空。NASA将其描述为“一生一次”的事件。The event is known...
Classical novae are cataclysmic binary star systems in which the matter of a companion star is accreted on a white dwarf1,2. Accumulation of hydrogen in a layer eventually causes a thermonuclear explosion on the surface of the white dwarf3, brightening the white dwarf to ~105 solar luminosities...
During the lifetime of our Milky Way galaxy, there have been something like 100 million supernova explosions, which have enriched the Galaxy with the oxygen we breathe, the iron in our cars, the calcium in our bones and the silicon in the rocks beneath o
The nova, also referred to as a thermonuclear explosion, occurs when enough material from the red giant builds up in the white dwarf to power a bright outburst. When it erupts, the star system will become much more luminous, appearing like a new star in the...
Keck images, the four nearly identical “copies” of supernova Zwicky can be seen. The multiple images arise due to the warping of space caused by a foreground galaxy, also seen in the center and approximately halfway between the site of the supernova explosion and Earth. Credit...
Ellie Nova. Actress: FTV Girls. Nova experienced a challenging early life, moving frequently due to various circumstances, including an apartment explosion caused by a meth lab in her childhood home. She spent her formative years in downtown Los Angeles,
On October 9, 2022, orbiting X-ray and γ-ray telescopes registered the most powerful explosion ever observed in the Universe—the GRB221009A γ-ray burst at a distance of 2.4 billion light years. The response of the Earth's ionosphere to this unique event was detected in the received ...