NASA's New Horizon wakes up, prepares for New Year's Day flyby of 'Ultima Thule'

Moon causing days on Earth to get longer

Planet Nine may be an angry army of asteroids

How the moon's gravity influences Earth

What to see in the night sky in June

Planet or not, you can't discount the extraordinary beauty of Pluto

5 things you have to do differently in space

Behold the dreamy beauty of Jupiter's clouds

NASA's next mission will create the coldest spot in the universe

Norwegian planetarium promises to be out-of-this-world beautiful

Why we need to worry about ozone again

Monstrous, fast-growing black hole discovered enjoying a star buffet