The stars are not fixed and unchanging, contrary to what many ancient people thought. Every now and then a star appears where there was none before, and then it disappears again within a few days or weeks. The earliest record of such a “guest star,” so called by ancient Chinese astronomers, is a star that … Read more
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Astronomers expect a “new star” to appear in the night sky between now and September in a celestial event that has been in the works for years, according to NASA. “It is a once-in-a-lifetime event … Read more
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Astronomers expect a “new star” to appear in the night sky between now and September in a celestial event that has been in the works for years, according to NASA. “It is a once-in-a-lifetime event … Read more