If you are a budding astronomer or simply enjoy watching the sky through a telescope, you probably have an interest in all of the planets in our solar system. There are a total of eight planets, ...

This illustration shows what the TRAPPIST-1 planetary system may look like, based on available data about the planets’ diameters, masses, and distances from the host star. Astronomers have named them ...

As elementary schoolers, we learned the order of the planets. Maybe your teacher even had a snappy mnemonic like “My Very Educated Mother Just Served Us Nine Pizzas” or “My Very Educated Mother Just ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Are planets in the solar system that are closer ...

Three planets have been discovered in other solar systems and are the closest ever found to Earth in size, marking an important step in the search for planets that could support life elsewhere in the ...

The fate of Neptune-like worlds that migrate close to their star is to be whittled away by stellar radiation. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

AMES, Iowa – Astronomers poring over four years of data from NASA’s Kepler spacecraft have discovered a star that’s 11.2 billion years old and has at least five Earth-size planets. “We thus show that ...

The dichotomy arises during the first 50 million years of planetary history. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Supercomputer ...

The first confirmed exoplanets were discovered in 1992 orbiting a pulsar, followed by the first discovery around a sun-like star in 1995. Currently, nearly 5,500 exoplanets in over 4,000 systems have ...

Five years ago, astronomers revealed a spectacular collection of other worlds: the TRAPPIST-1 system. Newspapers around the world printed the discovery on their front pages: Astronomers had found that ...

Helium could make up almost half the mass of the atmosphere of giant exoplanets that have migrated close to their star, explaining why there is a mysterious size gap in the scale of these worlds. Over ...