Shooting stars are not stars at all. They are tiny space adventurers who accidentally wander into our sky and get sucked toward us by Earth’s gravity. Here’s the story of a shooting star’s journey.
We can’t make it rain. But you are already helping if you don’t use more water than you need. And you can talk to your parents about the planet getting warmer, because the heat makes drought worse.
As a police officer, I was involved in many pursuits, investigated serious accidents and later became a researcher. Here’s what I’ve learned about how police make decisions in a pursuit.
As gas from your stomach comes up your food pipe, it makes the surface of the upper part of your oesophagus rattle and vibrate. It is a bit like windows that rattle during a windy storm.
In the space of a few short years, deaf Nicaraguan school children created their own language. This example may give us a clue about how spoken language developed over thousands of years.
While making small volumes of pure water in a lab is possible, it’s not practical. The reaction is expensive, releases lots of energy, and can cause really massive explosions.
Josh Calcino, The University of Queensland and Jake Clark, University of Southern Queensland
Life could exist in another solar system in a different part our galaxy. Or in another galaxy far away. We don’t have the perfect technology yet to study such far away places but we’re still trying.