A new theory explains how dozens of mysterious planet pairs discovered by the James Webb Space Telescope, dubbed "JuMBOs," ...

Scientists using the powerful James Webb Space Telescope sought to observe a planet beyond our solar system (an exoplanet) ...

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

Extrasolar gas giant planets are a necessary stop on the road to finding life elsewhere in the cosmos. Here's why we need to ...

Jane Huang, an assistant professor of astronomy, grew up in Chicago, but has no strong feelings on whether New York or her ...

The youngster is less than 3 million years old, and raises questions about how planets form from the cosmos' dusty ether.

Learn how you can see bright Jupiter from Earth, helped by its massive size and banded, reflective cloud tops, in December's ...

An international team of astronomers has investigated a planetary system consisting of three alien worlds orbiting the star ...

A new study has identified an exoplanet that is just 3 million years old — around 1,500 times younger than Earth — alongside ...

Although scientists have catalogued over 5,800 exoplanets, including many baby planets, orbiting other stars since the ...

“If Venus was habitable in the past, it would mean other planets we have already found might also be habitable,” Constantinou ...