Bats are famous for using echolocation to navigate in the dark of night--sending sound into the environment and using the resulting echoes to locate prey and avoid obstacles.
Our sun has gone quiet. Almost too quiet.
Scientists are trying to determine what happens to matter when it is exposed to the immense pressures at the center of gas giant planets and stars. And to help them figure it out, they have hit a tiny sliver of a diamond with the largest laser system on Earth.
If you believe there must be extraterrestrial life somewhere in the immensity of the universe, here's some good news: Top NASA scientists agree with you, and at a panel discussion on Monday, they said they were closer than ever to finding out for sure.
Get ready moon gazers! There's a supermoon rising Saturday night and you don't want to miss it.
Have you ever noticed that your lower back pain flares up during a rainstorm? Or when the temperature suddenly drops? Or when there's a change in humidity or air pressure?