Articles

Emily Lakdawalla

Continuing my writeup of notes from last week's Division for Planetary Sciences meeting: presentations on the risks of future asteroid impacts. How much risk do we face, and what are the appropriate actions to take in the face of that risk?

Emily Lakdawalla

Planetary Surface Processes provides a rigorous overview of every process that shapes the appearance of planetary surfaces, and I'll be referring to it to help me explain everything from impact cratering to isostasy.

Emily Lakdawalla

Join me and Fraser Cain for a brief update on Curiosity and other exciting science presented at last week's Division for Planetary Sciences meeting, and get your pressing space questions answered! The Google+ Hangout is on Wednesday, October 24, at 16:00 PDT / 23:00 UTC. Note: this one will end about 15 minutes early.

Emily Lakdawalla

New ground-based images of Uranus show more finely detailed structure than any photos I have ever seen.

Emily Lakdawalla

A summary of just one talk from the Division for Planetary Sciences meeting, by Lindy Elkins-Tanton, which provided a neat explanation for how asteroids can be melted and layered on the inside yet have a primitive-looking exterior.

Emily Lakdawalla

Tuesday morning at the Division of Planetary Sciences meeting featured talks on the surface composition and landforms on Titan, including lakes and

Emily Lakdawalla

In the first full day of the annual meeting of the Division of Planetary Sciences of the American Astronomical Society, I listened to scientific sessions on icy worlds and on an exoplanet in a four-star system.

Emily Lakdawalla

A Curiosity press briefing yesterday gave some of the first results from ChemCam and APXS on the rock

Kelsi Singer

Long-runout landslides (sturzstroms) are found across the Solar System. They have been observed primarily on Earth and Mars, but also on Venus, and Jupiter’s moons Io and Callisto. I have just published a paper about sturzstroms on Iapetus.

Emily Lakdawalla

Curiosity has pulled up to the edge of Glenelg, its first destination within Gale crater.

Emily Lakdawalla

I'm hosting this week's Cosmoquest Science Hour, and plan to take viewers on a virtual tour of those mountains on Curiosity's horizon, and show you where Curiosity is likely to go. Join me and Fraser Cain here at 1600 PDT / 2300 UTC Wednesday.

Mat Kaplan

Losing your enthusiasm for space exploration and science Watch these new and terrific videos for an exhilarating shot of Vitamin S.

Emily Lakdawalla

Dawn's last images of Vesta peek into previously shadowy north polar territory. As the spacecraft leaves Vesta behind, its science team requests help from the public.

Jason Davis

NASA's Radiation Belt Storm Probes will shed new light on the Van Allen Radiation Belts, a dangerous region of space in our planet's backyard.

Emily Lakdawalla

New Hubble photos show that Uranus has both dark and bright spots!

Emily Lakdawalla

Some notes from this morning's Curiosity press briefing: the rover will be driving to

Mat Kaplan

A new monthly series of Southern California Public Radio events begins with a look at how intelligent machines and virtual humans will change what it means to be a real human. Attend or watch the live webcast tonight, Thursday, August 16.

Jason Davis

I'll be guest hosting this week's Cosmoquest Science Hangout on Wednesday, August 1. The show starts at 2300 UTC, and my special guest is Mihály Horányi.

Emily Lakdawalla

Pluto is now known to have at least five moons (Charon, Nix, Hydra, P4, and the newly discovered P5), and its burgeoning population might pose a risk to New Horizons during its flyby, three years from now.

Mat Kaplan

Talk about changing climates on this world and others brought 600 people to the Boulder Theater.