Orbital mirrors from Reflect Orbital promise nighttime solar power but face catastrophic physics limitations and astronomical concerns over sky pollution.

It’s not just in your head — time can actually flip. Physicists in New York have pulled off what sounds like a page ripped from a sci-fi script: They’ve confirmed that “time mirrors,” a trippy ...

What you think is a perfect reflection might be universe that is fundamentally different. When you look in mirror, and see what you think is a perfect reflection. You might be looking at universe ...