NOAA’s 2020 Arctic Report Card describes a region that is warming even more rapidly than scientists expected.

Overnight on Sunday, USGS reported lava fountains that shot nearly 165 feet into the sky from a fissure on the eastern side of Kilauea volcano in Hawaii. Lava has replaced the water that was in the basin of the crater, and a new lava lake was formed.

Jupiter and Saturn at conjunction are only 0.1 degree apart. Don't miss them! Info, charts, photos here.

The December solstice happens at 10:02 Coordinated Universal Time (UTC) on December 21, 2020. That time - the moment of solstice - marks the sun's southernmost point for this year.

Antarctic iceberg A-68A has drifted menacingly close to a remote island in the southern Atlantic Ocean. The giant iceberg could strike land this month. It has now split into 2 pieces.

A severe climate change event on Venus may have transformed an Earth-like climate to the current uninhabitable-to-humans state.

December solstice sunrise comes at the same time for St. Augustine, Florida, and New York City. But St. Augustine has an hour more of daylight than New York. Here's why.

It isn't as famous as its counterpart, the Southern Cross. But the Northern Cross looks like a cross, and it's pretty easy to spot. You'll find it upright in the west on late December evenings.

A popular theory of galaxy formation suggests that small galaxies merged to form larger ones. But galaxy C1-23152 - 12 billion light-years from Earth - apparently formed itself from gas in the early universe, via exceedingly rapid star formation.

A new study from researchers at Rutgers University suggests that the best place to look for evidence of life on Mars is deep underground, where geothermal heat melted subsurface ice.