Emirati 'Hope' probe heads for Mars

The first Arab space mission to Mars is scheduled to blast off from Japan Friday on a mission to unravel from above the weather dynamics in the Red Planet's atmosphere.

Effects of the solar wind

The wind speed of a devastating Category 5 hurricane can top over 150 miles per hour (241km/hour.) Now imagine another kind of wind with an average speed of 0.87 million miles per hour (1.4 million km/hour.) Welcome to the ...

Drought, deluge turned stable landslide into disaster

"Stable landslide" sounds like a contradiction in terms, but there are indeed places on Earth where land has been creeping downhill slowly, stably and harmlessly for as long as a century. But stability doesn't necessarily ...

What exactly does 'instantaneous' mean?

How short is an "instant"? Is it a second? A tenth of a second? A microsecond? You might think all of these qualify. What about 100 years? That certainly doesn't seem like an instant, and to a human being, it isn't, since ...

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