We have just entered a very favorable period for observing the so-called "elusive" planet Mercury. From now, until about May 13, you should be able to find it with not much difficulty. But how well do ...

The International Astronomical Union (IAU) defined a dwarf planet in 2006 as a celestial body that orbits the Sun, is round in shape, but has not cleared its orbital neighborhood of objects of ...

The worlds around our sun run the gamut from small and lifeless chunks of rock to gargantuan globes of gas. Our planet's siblings each have its own extreme features and crazy phenomena. -- Charles Q.

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

The Planet Parade of 2025 is a truly extraordinary celestial event that has stargazers excited. From January 21 to mid-February, six planets will align in the sky: Venus, Mars, Jupiter, Saturn, Uranus ...

It’s not unusual for kids to be concerned about the environment; we’ve been drilling common tips about protecting the Earth into their heads since before they could walk. But that doesn't mean parents ...

Perspective by Philippe Cousteau Jr. Kids and nature: Two things that not so long ago went together, well, naturally. Exploration outdoors defined childhood, which meant endless opportunities to ...