Evolution insights from a walking cavefish

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Fish evolved into the first land vertebrates 420 million years ago. Clues to that fins-to-limbs transformation may lie in a walking blind cavefish in Thailand.

Shireen Gonzaga

March 30, 2016

See it! Moon sweeps past Mars and Saturn

Both planets are up after midnight now, but soon will be rising earlier … at their best. Enjoy these photos from the EarthSky community!

Deborah Byrd

March 30, 2016

Oddball hot Jupiter has wildly eccentric orbit

Researchers have studied how the exoplanet’s temperature changes as it approaches, sweeps by, and moves away from its star.

Editors of EarthSky

March 29, 2016

Beauty of the northern lights

Gorgeous 5-minute video of the northern lights in February and March 2016 - captured in still images, panoramas, time-lapse and real-time videos.

Eleanor Imster

March 29, 2016

Watch giant ice bridge collapse

An ice bridge collapsed at Perito Moreno Glacier in Argentina earlier this month. Hundreds of tourists and locals gathered to witness the dramatic event.

EarthSky Voices

March 29, 2016

Another record low for Arctic sea ice

At 5.6 million square miles, 2016 had the lowest winter sea ice maximum in the 37-year satellite record. It's slightly lower than the previous record, set last year.

Deborah Byrd

March 29, 2016

Crepuscular and anti-crepuscular rays

Next time you see crepuscular rays, aka sunrays, turn around. You might be in luck and see anti-crepuscular rays, as Peter Lowenstein did in Mutare, Zimbabwe on Easter Sunday.

Peter Lowenstein

March 29, 2016

Moon farthest south on March 30

The moon reaches its southernmost point for the month on March 30, 2016. The moon is east of Mars and Saturn before dawn on March 30.

Bruce McClure

March 29, 2016

Pavlof Volcano in Alaska erupts

Huge ash plume caused airline re-routings. Falling ash, volcanic lightning and lava fountaining from summit. By Tuesday morning, eruption was declining.

Deborah Byrd

March 29, 2016