A “once-in-a-lifetime” cosmic explosion is likely this summer, NASA says. Here’s what you need to know.

A rare burst of light from a dead star is likely to be visible to humans in earth this summer in a fleeting but potentially gloomy celestial display that scientists are calling “a once-in-a-lifetime event.” The technical term for the impending cosmic explosion is nova, which occurs when a white dwarf suddenly and often spectacularly … Read more

NASA Telescope Spots ‘Cosmic Fireworks’ and Faint Echo from Milky Way’s Supermassive Black Hole

Astronomers have spotted flashes and echoes coming from the supermassive black hole at the heart of the Milky Way, Sagittarius A* (Sgr A*). These “cosmic fireworks” and X-ray echoes can help scientists better understand the dark, quiet cosmic titan around which our galaxy orbits. The Michigan State University team of researchers made the groundbreaking discovery … Read more