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

 

Cosmos with Cosmos Episode 4: Heaven & Hell
In which face the consequences of our own knowledge

Posted by Casey Dreier on 2013/11/04 11:53 CST | 7 comments

Humans face the consequences of our own knowledge about the cosmos in this latest episode recap and analysis of Carl Sagan's classic series.

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 »

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 »

An early look at Comet ISON

Posted by Jason Davis on 2013/10/08 01:01 CDT | 2 comments

Comet ISON is brightening as it approaches the Sun, and can now be seen from many ground-based telescopes.

Read More »

Cometary Science at EPSC

Posted by Geraint Jones on 2013/09/26 05:02 CDT

Recently, almost a thousand researchers gathered in London for Europe’s annual meeting of planetary scientists. Here's a report from one session on cometary science.

Read More »

Comet ISON lives on! (we think...)

Posted by Karl Battams on 2013/08/13 01:31 CDT | 1 comment

For several weeks now, ground-based observers have been blind to Comet ISON as our local star was sitting directly between us and the comet. I am delighted to share two pieces of good news: first, that ISON is still alive and well, and secondly that it has been recovered.

Read More »

Interplanetary eyes on the lookout for comet ISON

Posted by Daniel Fischer on 2013/08/09 02:15 CDT

Space blogger Daniel Fischer provides a preview of the exciting interplanetary observing campaign that has recently begun to study comet C/2012 S1 (ISON) from vantage points across the solar system.

Read More »

Pluto on the Eve of Exploration by New Horizons: A problem of cartography

Posted by Emily Lakdawalla on 2013/07/30 05:44 CDT | 6 comments

Last Thursday at the Pluto Science Conference there was a surprising and interesting talk by Amanda Zangari, who pointed out a serious problem with Pluto cartography.

Read More »

Found a Killer Asteroid? Who Ya Gonna Call?
Tim Spahr of the Minor Planet Center on Planetary Radio

Posted by Mat Kaplan on 2013/07/08 04:19 CDT

Astronomer Timothy Spahr directs the Minor Planet Center, the global clearinghouse for asteroids, comets and other relatively small objects in the solar system, including moons. He also coordinates the Society's Shoemaker NEO grant program.

Read More »

Hubble captures time-lapse of comet ISON

Posted by Jason Davis on 2013/07/05 04:28 CDT | 2 comments

The Hubble Space Telescope captured a series of images showing Comet C/2012 S1 (ISON) plunging toward the sun.

Read More »

Planetary Defense Conference 2013 Part 2
Shoemaker NEO Grants

Posted by Bruce Betts on 2013/05/29 05:25 CDT

Second part of a three part wrap up to April's Planetary Defense Conference: a report on Planetary Shoemaker NEO Grant related activities and people at the Planetary Defense Conference 2013

Read More »

Planetary Defense Conference 2013 Part 1
State of Research and Videos to Watch

Posted by Bruce Betts on 2013/05/24 05:29 CDT | 2 comments

First part of a 3 part wrap up to April's Planetary Defense Conference: a very brief review of the status of research in asteroid threat related fields based on the conference, report on special activities at the conference, and links to video and audio related to the conference.

Read More »

New Deep Impact Hartley 2 data set

Posted by Emily Lakdawalla on 2013/05/03 09:59 CDT | 7 comments

Just messing around with a recently released processed version of the Deep Impact Hartley 2 data set.

Read More »

An Amazing Evening for Planetary Defense
Join us via Planetary Radio and complete video coverage.

Posted by Mat Kaplan on 2013/04/23 07:12 CDT | 1 comment

Bill Nye, Bruce Betts, Mat Kaplan, Meteorite Man Geoffrey Notkin and stars of planetary science at the Planetary Defense Conference public event in Flagstaff.

Read More »

Planetary Society Weekly Hangout: the Giant ALMA Observatory, and Asteroid Tracking

Posted by Bruce Betts on 2013/03/20 01:31 CDT

Bruce Betts, Mat Kaplan, and asteroid tracker Robert Holmes on the Planetary Society Weekly Google Hangout. Mat discussed and showed pictures from his trip to the giant ALMA observatory and we'll be joined by asteroid tracker extraordinaire, Robert Holmes.

Read More »

Comet PANSTARRS from the other side of the Sun!

Posted by Karl Battams on 2013/03/14 05:21 CDT | 8 comments

Comet PANSTARRS is delighting northern hemisphere viewers right now. But it's also big, bright, and beautiful to the STEREO spacecraft.

Read More »

Planetary Society Weekly Hangout: Being WISE about asteroids, comets, and brown dwarfs with Amy Mainzer

Posted by Emily Lakdawalla on 2013/03/14 02:00 CDT

This week I'll be talking with NEOWISE principal investigator Amy Mainzer about moving objects that the WISE mission has spotted both inside and outside our solar system.

Read More »

Will comet Siding Spring make a meteor shower on Mars?

Posted by Emily Lakdawalla on 2013/03/05 04:34 CST | 6 comments

JPL's Solar System Dynamics group shows that there is still a possibility that C/2013 A1 (Siding Spring) could hit Mars. But the uncertainty in its position at that time is large -- the closest approach could happen an hour earlier, or an hour later -- so we're a long way from knowing yet whether it will or (more likely) won't impact.

Read More »

Comet to whiz past Mars in October 2014

Posted by Emily Lakdawalla on 2013/02/27 05:36 CST | 22 comments

A recently discovered comet, C/2013 A1 (Siding Spring), is going to be passing very close to Mars on October 19, 2014. Does it pose a risk to spacecraft?

Read More »

Webcast Tonight! Planetary Scientist and Society President Jim Bell
Watch It Live or Later On Demand

Posted by Mat Kaplan on 2013/02/20 07:59 CST

Professor Bell's topic is "Exploring Mars, the Moon, Asteroids, and Comets with Rovers and Landers," and there is no one better to talk about this subject.

Read More »

Items 61 - 80 of 120  Previous123456Next
Facebook Twitter Email RSS AddThis

LightSail - Flight by Light

Support LightSail!

In 2016, The Planetary Society’s LightSail program will take the technology a step further.

I want to help!

Featured Images

Philae's landing site in 3D

Hayabusa-2 spacecraft
Curiosity in-situ science targets at Confidence Hills, sols 758-771
The Confidence Hills work area at the edge of Pahrump Hills outcrop, Curiosity sol 777
More Images

Featured Video

View Larger »

Space in Images

Pretty pictures and
awe-inspiring science.

See More

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!