Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Blogs

Blog Archive

 

Comet ISON live blog

Posted by Emily LakdawallaBruce Betts on 2013/12/05 10:00 CST | 10 comments

Comet ISON reached perihelion at 18:25 UT (10:25 PT) on November 28. It's an event that's was watched around the world, accompanied by tons of commentary and streams of photos. We will update this blog entry periodically with links to all the resources that we hear of for following the comet's progress.

Read More »

Multiple views of comet ISON from solar-observing spacecraft

Posted by Emily Lakdawalla on 2013/12/02 07:50 CST | 6 comments

When comet ISON passed through perihelion last week, solar observing spacecraft had a ringside view. Here are several animations of ISON's perilous passage from the SOHO and two STEREO spacecraft.

Read More »

Schrödinger's Comet

Posted by Karl Battams on 2013/11/28 09:54 CST | 9 comments

After impressing us yesterday, comet ISON faded dramatically overnight, and left us with a comet with no apparent nucleus in the SOHO/LASCO C2 images. As the comet plunged through the solar atmosphere, and failed to put on a show in the SDO images, we understandably concluded that ISON had succumbed to its passage and died a fiery death. Except it didn't. Well, maybe...

Read More »

Comet ISON: Your Half-time Report

Posted by Karl Battams on 2013/11/26 10:04 CST | 1 comment

I am heading out to Kitt Peak to join my fellow CIOC-ers Matthew and Casey for perihelion observations of Comet ISON, and I find myself having an early moment of reflection.

Read More »

ISON, Encke, Mercury, and Home

Posted by Karl Battams on 2013/11/22 10:04 CST | 3 comments

Comet ISON has entered the field of view of the STEREO HI-1A camera, and, in an awesome animation, it joins a large cast of characters already present there.

Read More »

Imaging results from the Chang'e 2 Toutatis flyby

Posted by Emily Lakdawalla on 2013/11/21 01:23 CST | 3 comments

There is a paper in press at Icarus by Xiaoduan Zou and five coauthors that provides the first peer-reviewed publication I've seen on the results of the imaging experiment performed during the Chang'e 2 flyby of near-Earth asteroid (4179) Toutatis.

Read More »

ARTEMIS Mission Update

Posted by Jasper S. Halekas on 2013/11/14 12:27 CST

ARTEMIS is a mission that retasked two probes from the 5-spacecraft Heliophysics constellation THEMIS to study the interaction of the Moon with the space plasma environment.

Read More »

Video: Comet ISON: Super Bright or Super Lame?

Posted by Bruce Betts on 2013/11/12 02:47 CST | 2 comments

Comet ISON (C/2012 S1) was touted months ago by media as the possible comet of the century. Will it be that, or a cosmic dud? Find out the basics about the in this short video.

Read More »

Why does ISON look green?

Posted by Matthew Knight on 2013/10/29 12:23 CDT

You may have noticed that Comet ISON appears to have a green halo in some recent images, but in other images acquired at about the same time, it doesn’t. Thanks to the beautiful new spectrum posted earlier today by Christian Buil, it’s relatively easy to understand why.

Read More »

Noachian, Hesperian, and Amazonian, oh my! --Mars' Geologic Time Scale

Posted by Emily Lakdawalla on 2013/10/25 04:32 CDT | 3 comments

The Martian Geologic Time Scale is a lot more complicated than the Moon's.

Read More »

Uranus Awaits

Posted by Geraint Jones on 2013/10/18 11:23 CDT | 3 comments

It’s been a long time since anyone paid Uranus a visit. The Uranus system is, however, fascinating, as evidenced by the wealth of topics covered by the diverse group of planetary scientists who gathered to discuss it last week at the Paris Observatory.

Read More »

DPS 2013: The fascination of tiny worlds

Posted by Emily Lakdawalla on 2013/10/17 02:27 CDT | 7 comments

In which I summarize Joe Veverka's Kuiper Prize talk at the Division for Planetary Sciences meeting: "Small is NOT Dull: Unravelling the Complexity of Surface Processes on Asteroids, Comets and Small Satellites."

Read More »

DPS 2013: Confusing Curiosity SAM results

Posted by Emily Lakdawalla on 2013/10/15 03:47 CDT | 7 comments

What did I learn about Curiosity at last week's Division for Planetary Sciences meeting? There were a few talks, most of which concerned soil and atmsospheric chemistry. I can summarize their conclusions with one sentence: More data is needed.

Read More »

America's Pastime: Planetary Science
Planetary Radio brings the home team to playoff week

Posted by Mat Kaplan on 2013/10/15 12:16 CDT

Apologies to baseball fans and others for the theme of this week's Planetary Radio preview, which has star player Emily Lakdawalla on deck.

Read More »

DPS 2013: Tidbits from Titan

Posted by Emily Lakdawalla on 2013/10/09 05:19 CDT | 8 comments

I attended a few talks at the Division for Planetary Sciences meeting today that concerned Titan's origin and interesting surface, and then one in the afternoon about the atmosphere.

Read More »

The "Starship Century" Beckons
Gregory and James Benford return to Planetary Radio

Posted by Mat Kaplan on 2013/10/01 10:30 CDT

The Benford brothers provide inspiration and hard fact in their excellent new anthology about interstellar travel.

Read More »

Relative and absolute ages in the histories of Earth and the Moon: The Geologic Time Scale

Posted by Emily Lakdawalla on 2013/09/30 03:04 CDT | 1 comment

A few days ago, I wrote a post about the basins of the Moon -- a result of a trip down a rabbit hole of book research. Here's the next step in that journey: the Geologic Time Scales of Earth and the Moon.

Read More »

Gravity assist

Posted by David Shortt on 2013/09/27 01:30 CDT | 15 comments

With the recent announcement by NASA that the 36 year-old spacecraft Voyager 1 has officially entered interstellar space at a distance from the sun about four times further than Neptune's orbit, and with Voyager 2 not far behind, it seems worthwhile to explore how humans managed to fling objects so far into space.

Read More »

Dating the Moon's basins

Posted by Emily Lakdawalla on 2013/09/26 03:33 CDT | 5 comments

A paper in press in the Journal of Geophysical Research uses new data from Lunar Reconnaissance Orbiter to update our story for the history of the Moon's massive impacts.

Read More »

Two new ways to browse Vesta: 1. Vesta Low-Altitude Mapping Orbit (LAMO) Atlas

Posted by Emily Lakdawalla on 2013/09/16 10:57 CDT

Last week was the European Planetary Science Congress in London, and there's been a lot of science news. One thing that caught my eye Friday was the publication of a new atlas for Vesta.

Read More »

Items 61 - 80 of 266  Previous12345678910Next
Facebook Twitter Email RSS AddThis

JOIN THE
PLANETARY SOCIETY

Our Curiosity Knows No Bounds!

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Us

Featured Images

What Lies Beneath

MAVEN enters orbit
Finding jets in the September 19, 2014 NavCam image of comet 67P
NavCam view of comet Churyumov-Gerasimenko on September 19, 2014
More Images

Featured Video

View Larger »

Fly to an Asteroid!

Travel to Bennu on the OSIRIS-REx spacecraft!

Send your name

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!