And experts are blaming climate change.
The phenomenon is caused by a type of plant called Sueda.
Are the northern lights even more spectacular from space than Earth?
The HI-SEAS V mission, run by the University of Hawaii, produced data that should help NASA understand the psychological profile needed for crew members on future long-term missions to Mars.
Travel magazine 'All About Lapland' posted a video of the impressive light show seen from northern Finland.
Trump said he wants the relief effort to be seen as an example of how to respond to a storm.
The stunning images from Houston, the fourth-largest city in the United States, show the catastrophic and record flooding that have affected hundreds
Houston, Texas, is expected to see a year's rainfall in just a week after hurricane Harvey passes over
The most powerful storm to hit Texas in more than 50 years has killed at least one person and is now threatening catastrophic flooding in the region.
Millions of people across 14 states stood and waited for a rare and rather spectacular total solar eclipse
On August 21st a total solar eclipse will sweep across the United States from coast-to-coast.
The biggest earthquake for 30 years has made itself felt in western Scotland
Pope Francis is showing solidarity as Rome faces the prospect of water rationing
Discover in this 360° video how climate change and human activities threaten the ecosystem of Doñana National Park, in southern Spain.
Discover in this 360° video how Italy's Ventina glacier has receded by about one kilometre in less than a century.
39,000 people have been evacuated and military aircraft deployed as wildfires spread across British Columbia.
Portugal experienced its deadliest forest fire in its history.
Paris saw floods caused by unprecedented rainfall.
Germany also suffered
Locals evacuated as observers think smoke from forst fires is coming from Mount Vesuvius
Conclusion of simian trilogy promises spectacular special effects and dark drama
More than 1,000 firefighters have been deployed to battle the blaze across central Portugal