Yosemite waterfall turns to lava as sun and earth align

Horsetail Falls- Mid-February sunsets in Yosemite National Park lights a natural firefall from Glacier Point illuminating one of the park's lesser-known waterfalls so precisely that it resembles molten lava

Gas from tidally shredded star falling into a black hole

Scientists watch black hole feast on unlucky star (a computer simulation showing what a star falling into a black hole looks like.

Yellowknife, which is situated directly under the auroral "oval", has some of the best northern lights viewing in the world.

The largest solar storm in five years sent a huge wave of radiation into earth's atmosphere creating a brilliant show of the aurora borealis near Yellowknife, North West Territories on Thursday March

Perito Moreno glacier

2020 Is Key Number in New Climate Report Highlighting Need for Greater Carbon Cuts

Snow mountain

Pro photo of the year: Chris Hocking's 'Sunset at Bogong'.

A giant sunspot on the upper-right face of the Sun.

This image, captured by NASA's Solar Dynamics Observatory (SDO) on March shows an active region on the sun, seen as the bright spot to the right. Designated AR the spot has so far produced three X-class flares and numerous M-class flares.

An aurora borealis swirls in the sky over the Yukon River village of Ruby, Alaska

We'll get to see and hear these guys. Must get to Iditarod! The aurora borealis swirls in the sky over the Yukon River village of Ruby, Alaska, a checkpoint of the Iditarod Trail Sled Dog Race Picture: The Anchorage Daily News, Marc Lester/AP


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