Articles

Emily Lakdawalla

The Periodic Table of Elements that hangs in chemistry classrooms doesn't include a lot of the information about elements that's most important to geologists. Here's one that does.

Emily Lakdawalla

When people first hear about how Curiosity will land on Mars, their first question always is: are they nuts? This is the first in a multi-part series describing how -- and why -- Curiosity will land this way, in excruciating detail.

Emily Lakdawalla

Just a pretty global view of one of Saturn's flock of icy moons, newly processed from archival data by Gordan Ugarkovic.

Mat Kaplan

Okay, just the ones we know about. xkcd does it again.

Emily Lakdawalla

This Cosmoquest Science Hangout featured Ravi Prakash, Curiosity Entry, Descent, and Landing Systems Engineer. He explained how Curiosity will land on Mars, and why they've changed things since Spirit and Opportunity landed.

Alfred McEwen

Hundreds of images from the Mars Reconnaissance Orbiter’s HiRISE camera are publicly available, if you know where to look.

Jason Davis

China’s fourth human spaceflight mission got underway this morning after a Long March 2F rocket blasted off from the Jiuquan Satellite Launch Center at 10:37 UTC.

Bruce Betts

TPS Shoemaker NEO Grant Winner Gary Hug hunts near Earth objects from his back yard in Kansas. NPR's Morning Edition picked up on this fascinating story.

Emily Lakdawalla

I have a couple of updates on my post from yesterday: confirmation that Chang'E 2 is indeed gone from L2, and more specifics on encounter dates with Toutatis.

Emily Lakdawalla

An interesting set of images of Titan that Cassini took recently shows a peculiar cap at Titan's south pole.

Emily Lakdawalla

A reader comment on Jay Pasachoff's post last week about Venus transits viewed from other planets had me asking whether transits of other planets were also interesting to astronomers. Jay provided some answers!

Mat Kaplan

With help from Apple, we've once again made Planetary Radio, our weekly podcast and public radio series, available from the most popular spot on the Net to find and subscribe to podcasts.

Emily Lakdawalla

According to a Chinese spaceflight forum, Chang'E program chief scientist Ouyang Ziyuan recently announced that Chang'E 2 has departed the Sun-Earth L2 point and is now en route to asteroid 4179 Toutatis!

Emily Lakdawalla

A notice of some new names for features on asteroid 2867 Steins inspired me to dig up the data set from the September 5, 2008 Rosetta flyby and explore it to see what it contained.

Emily Lakdawalla

NuSTAR, the most sensitive X-ray telescope ever developed, launched successfully at 16:00 UT. This was a fun launch to watch, because the launch vehicle was a Pegasus XL air-launched rocket, dropped like a bomb from open bay doors of an L-1011 airplane.

Jason Davis

The stage is set for China’s space program to make history this weekend, as it prepares to send three taikonauts to visit Tiangong-1, the country’s first space station.

Emily Lakdawalla

Sky & Telescope and Replogle Globes teamed up to take advantage of the fabulous new Lunar Reconnaissance Orbiter image mosaic of the Moon to make an equally fabulous new Moon globe.

Emily Lakdawalla

There was good news and bad news in this morning's press briefing about Curiosity rover's upcoming landing on Mars, just eight weeks from now. First, the good news: the landing ellipse has shrunk. The bad news: there's a contamination problem with the drill, and the Odyssey orbiter is in safe mode.

Emily Lakdawalla

Glen Nagle pointed me to two awesome papercraft models of the Curiosity rover that you can download and -- assuming you have a LOT of patience and a steady hand -- assemble.

Andrew Rush

When amateurs process NASA images, can they hold copyright over them? Yes, sometimes. Andrew Rush of IPinspace.com explains the law.