Aliens can observe Earth from the past, opening up fascinating discussions about time, space, and extraterrestrial ...

It's fun exploring Street View Time Machine! Some streets in fast growing cities are like a century of progress in 20 years. Here's Toronto, 591 Dundas E, facing north, same angle ("See more dates" to ...

Under normal circumstances, your light cone (and thus your world line) remains fixedly pointed toward the future. However, we ...

Google Earth got a Street View feature that effectively lets users travel through time. The tech giant announced this week that it was bringing historical Street View imagery to Google Earth, which ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

Time travel is one of the hallmarks of science fiction, but many time-travel-based movies have plots that leave one with a headache just thinking about them. What if you could travel into the past, ...

Elon Musk stands victorious in his ambitious Starship plans now that SpaceX caught the Super Heavy booster with giant ...

"Current models are showing the [Lemmon] comet will likely peak between 3.5 and 4.5 magnitudes when it is nearest to Earth on October 21, which is dimmer than what they showed last week," Saint Louis ...