Supernovae usually appear suddenly in the sky, but now astronomers have spotted one in advance. The telltale sign is a star with a “teardrop” shape, as it gets stretched out by the gravitational pull ...

The light from stars isn’t steady, instead it tends to pulsate. This is usually uniform across the whole surface of the star, but now astronomers have discovered an object that only pulses on one side ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. If any beings live in the solar system HD 74423, their young ones ...

Mounds of earth that have been found on the surface of Mars may once have been covered by sprawling lakes, scientist have claimed. The incredible photographs showing valleys and channels were taken ...

Galleys opening to the rear are a standard feature on teardrop trailers, such as this model built by Big Woody Campers. Teardrop trailers take their name from the teardrop-shaped profile, visible on ...