If there's one thing we've experimentally determined to be a constant in the Universe, it's the speed of light in a vacuum, c. No matter where, when, or in which direction light travels, it moves at 299,792,458
The night sky is changing, and we can’t figure out why. History would have us believe that the night sky is permanent and unchanging. After all, navigators have steered their ships using fixed stellar
It’s just water and ice. And maybe a few rocks. Despite their unremarkable make-up, Saturn’s rings are an iconic sight and have been since the late 1970s when first Pioneer 11, then Voyagers 1 and 2, the
LightSail 2 Spacecraft That Could Possibly Cover 3.6 Million Miles Per Day Successfully Tested In Earth's Orbit
LightSail, a project by The Planetary Society, demonstrates and explores the capabilities of solar sailing by putting it in low Earth orbit by using a miniature satellite called CubeSat. Although something
New research confirms Einstein's theory of gravity but brings scientists a step closer to the day when it might be supplanted by something new. Albert Einstein can explain a lot, but maybe not black holes.