Dying stars may be wiping out nearby giant planets as they expand into red giants. Astronomers found that these close-in planets become increasingly rare around more evolved stars, suggesting many have already been swallowed. The likely cause is a .. ...
A group of undergraduate students stumbled into a cosmic time capsule--one of the oldest stars ever discovered--while combing through massive astronomy datasets. What began as a class project quickly turned into a breakthrough when they spotted an .. ...
In this week's newsletter: From pollution in the upper atmosphere to mounting debris, experts warn the rapid expansion in space could threaten our planet ...