In the long and hallowed history of flight, engineers are writing a new chapter. It’s a chapter that involves skies more distant than the stratosphere of our own world. Space flight designers today ...

There's been a lot of hype and rumours about alien comet 3I/ATLAS lately. So, where is it now, what did it look like when it passed Mars and through its closest distance to the Sun, when will it ...

Every once in a while, you may look up toward the sun and see strange bright lights on either side of it. Or perhaps you'll be sitting in an aircraft, looking out the window at its shadow, and see a ...

Photosynthesis changed Earth in powerful ways. When photosynthetic organisms appeared, it led to the Great Oxygenation Event. That allowed multicellular life to evolve and resulted in the ozone layer.