Over the past century, we’ve gone from around 2 billion to 8 billion people on the planet. At the same time, fertility rates ...

What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

In the evening sky, brilliant Jupiter is the brightest starlike object among the bright stars of the winter season, ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...

Astronomers are just beginning to scratch the surface of the complex, and sometimes violent, relationships between planets ...

A hyper-realistic picture of life during that Pleistocene era emerges with Apple TV’s five-part, computer-driven “Prehistoric ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

Experts say a pinch of extra planning can ensure more gets eaten and recommend that home cooks treat scraps like ingredients, ...

Around 4.5 billion years ago, a planet called Theia is thought to have smashed into newborn Earth. The messy collision kicked ...

Planet Fitness has outperformed the S&P 500 since its 2015 IPO, driven by strong earnings growth. Learn why PLNT stock is a Hold.