A star first noticed by ancient Egyptians may finally be revealing its layers
Lauri Jetsu, an astrophysicist at the University of Helsinki, is following a tradition that may stretch back thousands of years. For more than a decade, he’s studied the bright star Algol, one of the most unusual stars in the sky, with its brightness visibly changing every few days. His research suggests those fluctuations have been noted since at least ancient […]
Read more