A rare stellar explosion will soon result in a bright new “star” appearing for a few days in Canada’s night sky. The eruption, known as a “nova,” will occur in the T Coronae Borealis ...

Astronomy Black Holes Accidental discovery reveals 'millinovas,' a new class of cosmic explosion 100 times brighter than the sun News By Robert Lea published December 23, 2024 ...

Supernovas, kilonovas, gamma-ray bursts... oh my! The Nancy Grace Roman Space Telescope will uncover 100,000 of these explosions and many more powerful and violent cosmic events.

NASA’s upcoming Nancy Grace Roman Space Telescope is set to revolutionize our understanding of the universe with an extraordinary survey that could unveil 100,000 cosmic explosions. As part of ...

A star exploded twice — First-ever image reveals its cosmic fingerprint Date: July 3, 2025 Source: ESO Summary: Astronomers studying the remnant SNR 0509-67.5 have finally caught a white dwarf ...

A team of astronomers, including from the University of Toronto, has detected the sonic boom from an immensely powerful cosmic explosion, even though the explosion itself was totally unseen. For years ...

Astronomers have identified cosmic explosions of unprecedented power since the Big Bang. These phenomena, dubbed 'extreme nuclear transients', are redefining our understanding of the most violent ...

Millions of stars and galaxies fill a dreamy cosmic landscape in the first-ever images released from a new astronomical observatory with the largest digital camera in the world. In one composite ...

Most cosmic explosions, for comparison, only shine for several weeks. "When I saw these smooth, long-lived flares from the centers of distant galaxies, I knew we were looking at something unusual ...

"The explosions of white dwarfs play a crucial role in astronomy," says Priyam Das, a Ph.D. student at the University of New South Wales Canberra, Australia, who led the study on SNR 0509-67.5.

Hubble snapped the image about six weeks after the supernova was discovered. That's why SN 2024PI appears here as a small blue dot, which is much fainter than its maximum brilliance.

Astronomers have identified cosmic explosions of unprecedented power since the Big Bang. These phenomena, dubbed 'extreme nuclear transients', are redefining our understanding of the most violent ...