How It Would Look If Other Types Of Stars Were Close As The Sun

What would it look like if other stars were as close as the sun? For starters, we may have more than one, and it may be either much bigger or smaller than our current orbital star, as shown in these videos, which explore a hypothetical universe where our sun has been replaced with other stars and our moon with planets. » 1/30/15 2:40am 1/30/15 2:40am

There's Poop on the Moon

It should come as no surprise that the Apollo astronauts left a few things behind after landing on the moon. Since the lunar module could only lift so much weight off the surface, they swapped out unwanted goods and gear for moon rocks. Among those unwanted goods were all kinds of weird things. What kinds of weird… » 1/15/15 4:35pm 1/15/15 4:35pm

The Real Story Of Apollo 17... And Why We Never Went Back To The Moon

On December 11, 1972, Apollo 17 touched down on the Moon. This was not only our final Moon landing, but the last time we left Low Earth Orbit. With the successful launch of the Orion capsule, NASA is finally poised to go further again. So it's important to remember how we got to the Moon — and why we stopped going. » 12/14/14 2:59am 12/14/14 2:59am

A Mesmerizing Video Shows One Year Of The Moon’s Phases In Five Minutes

The Moon always keeps the same face to us, but not exactly the same face. Because of the tilt and shape of its orbit, we see it from slightly different angles over the course of a month. And when each month is compressed into 24 seconds, as in this video, our changing view of the Moon makes it look as if it's wobbling. » 12/11/14 6:37pm 12/11/14 6:37pm