The post A scientist’s mesmerizing animation shows how our entire solar system orbits an unseen center - and it’s not the sun ...

The winter solstice came on Monday at 5:02 a.m. ET. The shortest day of the year heralds the arrival of winter; after this, days finally start getting longer in the northern hemisphere, which ...

You can't feel it, but we're rocketing through space at 1.3 million miles per hour. That's because the Earth is orbiting the sun, which is orbiting the center of the galaxy, which is barreling ...