A huge explosion of cosmic gas has been spotted at the heart of a far-off galaxy. This enormous outburst, known as a "gas outflow," is around 20,000 light-years across, about one-fifth of the ...

In October 2022, the universe unleashed its most powerful recorded explosion—2 billion light-years from Earth. Known as BOAT (Brightest Of All Time), the gamma-ray burst blinded detectors across ...

Astronomers discovered a star explosion, called a supernova, in the Pinwheel galaxy, also known as "M101." The dramatic cosmic event is visible with a telescope. Here's how to see it.

This time, the focus is on the remains of a star that exploded in the Large Magellanic Cloud (LMC), a satellite galaxy of the Milky Way. Using high-resolution images captured by Hubble, combined ...

Researchers conducted the first-ever near-infrared analysis of an extragalactic recurrent nova and found it is one of the hottest nova explosions ever discovered.

An incredibly brief, ultrabright explosion has led astronomers to a newfound magnetic star outside the Milky Way, which could be the first of many extragalactic magnetars, according to new research.

This week's image from the Hubble Space Telescope shows a stunning view of a spiral galaxy called UGC 12295, located nearly 200 million light-years away.

Scientists captured the first-ever close-up picture of a star outside of the Milky Way galaxy, ushering in a new era of cosmic study.

The small, dim, red dot in the center of a newly-released image of a distant galaxy shows it endured one of the most powerful explosions since the Big Bang. Astronomer Brendan O’Connor and his ...

Now, after the explosion happens, the star will enter a cool down period. It eventually will cool down to its pre-explosion temperature and the cycle will slowly begin again.