Christopher Crockett

Several new missions aim squarely at a long-standing astronomical conundrum, with the promise of improving space-weather predictions

Moon landings coverage focused on science, while voicing wary public frustrations

Lunar samples hinted at a barrage of debris pummeling planets billions of years ago. Fifty years after Apollo 11, that story is still unfolding.

People have been using metals to manipulate light for centuries. Now researchers are using it to create powerful biosensors.

Two new studies show how carbon and ice--two key planetary ingredients--take on exotic forms that could help researchers better understand the composition of Earth’s core as well as the innards of planets across the galaxy.

A survey of the southeastern United States shows that nearly half of mobile home residents don’t know where to shelter during a tornado, and many aren’t getting the resources they need to survive one.

Crustaceans in the Mariana Trench and other underwater canyons feed on food from the surface laced with carbon-14 from Cold War bomb tests

Study co-authored by UCLA astronomer provides close look at what might be happening in other, more energetic galaxies.

Team led by two UCLA astronomers uses split images of quasars to produce a new estimate of the Hubble constant.

Ahead of a decision on whether to fly the NASA spacecraft over Jupiter's Great Red Spot, hobbyists back on Earth provided crucial intel about the effects of an intruding disturbance.

The NASA spacecraft detected signs of hydrated minerals on Bennu's surface, suggesting that the asteroid's larger parent body once hosted liquid water.

More than 18 billion kilometers from home, Voyager 2 has become the second probe to break through the heliopause, a tenuous boundary between the solar system and the rest of the Galaxy.

Nearly 11 billion years ago, the universe churned out stars at a rate 10 times greater than today. And yet all the starlight in the cosmos appears no brighter than a 60-watt light bulb seen from miles away.

In astronomy news last week: The most luminous known quasar is devouring three galaxy companions, while a newly discovered ghostly satellite of the Milky Way hints at hordes more just waiting to be found.

A low-mass sun with few elements heavier than helium provides hope that the Galaxy might contain survivors from the very first generation of stars.

Long straight parallel lines on the satellite's surface could be droppings from Saturn's rings, one of the moons, or a passing comet, researchers suggest.

Following three weeks of downtime, engineers have cleared out a mechanical blockage in one of Hubble's gyroscopes and returned the observatory to full science operations.

Hordes of debris trapped by Jupiter and Neptune have distinct colors that mark them as possibly the last remnants of the material that built the giant planets.

Donatiello I is a tiny galaxy about 10 million light-years away, and it was discovered by an Italian hobbyist with a homemade telescope.

Four solar system satellites — and one putative exomoon — might be big enough and far enough from their home worlds to hold onto tiny moons for billions of years.