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Largest fireball since Chelyabinsk falls over Atlantic

The biggest fireball since the Chelyabinsk explosion plunged through the atmosphere over the Atlantic Ocean on February 6.

Eleanor Imster

February 24, 2016

Moons might hold key to finding E.T. life

As the list of known planets beyond our solar system grows, the search for their moons is intensifying. Why exomoons might be key to E.T. life.

EarthSky Voices

February 23, 2016

Record number of NASA astronaut applications

More than 18,300 people applied to join NASA’s 2017 astronaut class - almost three times the number received in 2012.

Editors of EarthSky

February 19, 2016

Is ‘Planet 9’ a second Kuiper Belt?

Is there a 9th planet - a super-Earth - as yet undiscovered in our solar system? Researchers present an alternative view, not a planet, but many small objects.

EarthSky Voices

February 19, 2016

Space rocks from Florida fireball found!

A rare find by meteorite hunters in Florida, from the daylight meteor that streaked across skies in the U.S. southeast in late January.

Eddie Irizarry

February 16, 2016

Comet lander faces eternal hibernation

Scientists have given up hope of re-establishing contact with Rosetta's comet lander, now sitting silent and dark on the comet's surface. R.I.P. Philae!

Eleanor Imster

February 16, 2016

Asteroid Day 2016 will be June 30

The European Space Agency hosted a press conference about Asteroid Day, which was co-founded by astrophysicist and rock musician Brian May.

Editors of EarthSky

February 15, 2016

Chelyabinsk meteor mystery 3 years later

It's been 3 years since the dazzling fireball over Chelyabinsk, Russia, and its aftereffects in 6 Russian cities. Yet scientists still don't know its origin.

Deborah Byrd

February 15, 2016