Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

On Earth, you can look up at night and see the Moon shining bright from hundreds of thousands of miles away. But if you went to Venus, that wouldn’t be the case. Not every planet has a moon – so why ...

At a young age, we're told how the sun warms Earth and makes life possible. That idea sticks with most of us for life. But ...

Recently scientists announced the discovery of an Earth-sized planet within the habitable zone of its star where liquid water could exist. Gliese 12b, smaller than the Earth but larger than Venus, ...

Why are we asking for donations? Why are we asking for donations? This site is free thanks to our community of supporters. Voluntary donations from readers like you keep our news accessible for ...

During the 1240s, Richard Fishacre, a Dominican friar at Oxford University, used his knowledge of light and color to show ...

Our vast expanse of outer space provides endless star, moon, and planet gazing opportunities that truly define the term ...