Jaw-dropping displays of the northern lights can be seen in a stunning series of time-lapse videos captured in Sweden this month by astrophotographer Chad Blakley.
Blakley has been filming in Sweden's Abisko National Park, which offers a view of glowing aurora borealis over snowy mountains. Swooshing and swirling green northern lights can be seen glimmering in a deep purple sky in the videos, which were shot over a 13-day stretch.
"We have seen powerful auroras in the sky above Abisko for 13 nights in a row and it looks like there are more to come!" said Blakley, who runs the site LightsOverLapland. "Last night I witnessed one of the finest aurora displays I have seen in many months."
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