Astronomers tracking a nearby star system thought they had spotted an exoplanet reflecting light from its star. Then it vanished. Even stranger, another bright object appeared nearby. After studying ...

Astronomers have discovered that aging stars may be devouring their closest giant planets as they swell into red giants. Using NASA’s TESS telescope to study nearly half a million stars, scientists ...

What would happen if Earth, Mars, and all the planets in our solar system merged into one massive super-planet? In this video, we explore the science, chaos, and incredible consequences of such a ...