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Plus a high-res map of Bennu, a virtual space party, and more
2 March 2020
Learn why and how we study exoplanets, and how you can get involved.
2 March 2020
Scientists are searching for 100 Earth-like planets around other stars, and you can help.
Swapna Krishna ● 12 March 2020
The habitable zone is the not-too-hot, not-too-cold region around a star where liquid water can exist.
Emily Lakdawalla ● 2 March 2020
Lava worlds. Hot Jupiters. Earth 2.0 candidates. Here's a rundown of some notable exoplanets.
Emily Lakdawalla & Staff ● 2 March 2020
Some methods almost sound like science fiction: Using gravity as a magnifying glass, watching stars wobble at turtle-like speeds, and searching for tiny dips in starlight.
2 March 2020
WFIRST, NASA's Wide Field Infrared Survey Telescope, is the next step in our hunt for Earth-sized exoplanets.
Emily Lakdawalla • December 22, 2011
Cassini flew close by Dione on December 12 and, as usual, the close pass provided opportunities for lots of dramatic photos, not just of Dione, but of other moons wandering by in the background.
Emily Lakdawalla • December 12, 2011
Images from the Cassini spacecraft's flyby of Dione.
Emily Lakdawalla • September 28, 2011
Since Cassini currently orbits Saturn within the plane of Saturn's rings, it has lots of chances to catch two or more moons in the same photo. One such "mutual event" happened on September 17, featuring four moons: Titan, Dione, Pan, and Pandora.
Emily Lakdawalla • September 23, 2011
About four years ago I wrote a blog entry about an ESA press release about paper published in Nature that suggested that Saturn's moons Tethys and Dione might have volcanic activity, like Enceladus. A new paper published in Icarus casts doubt on that conclusion.
Emily Lakdawalla • September 15, 2011
I'm preparing a talk for the Pacific Astronomy and Telescope Show here in Pasadena on Sunday afternoon at 1:45. I have spent the morning putting together a slide that I have long wanted to have for presentations.
Emily Lakdawalla • June 28, 2011
I've been mucking about in the Cassini data archives (as I often do when procrastinating) and unearthed a neat, if short, mutual event sequence of two crescent moons passing by each other.
Emily Lakdawalla • June 02, 2011
Last week I got very excited about a set of pictures that had appeared on Cassini's raw images website, but was sad that I couldn't make color versions myself. I was so excited that I failed to identify the little icy moon in the picture correctly.
Emily Lakdawalla • May 23, 2011
It figures. I just start a three-week trip, with my only computer a diminutive Netbook, and guess what's just been radioed across the 1.3 billion kilometers separating us and Saturn? A set of photos that should become -- when properly processed -- an iconic image from Cassini's fourteen-year mission to the Saturn system.
Emily Lakdawalla • April 13, 2011
I've got some lovely pictures from Saturn to show you! Every three months, the Cassini mission dumps gigabytes worth of precious Saturn data into the Planetary Data System, and the latest gift came on April 1. This particular pile of data, which was taken between April 1 and June 30, 2010, contains a lot of really terrific moon observations.
Ted Stryk • March 17, 2011
Here are Ted Stryk's notes from the sessions he attended in the afternoon of Thursday, March 10, at the 42nd Lunar and Planetary Science Conference.
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